Solar Orbiter - IRIS - ADITYA - Joint Workshop

Session

Poster A

16 Mar 2026, 17:25

Harnack Haus (Berlin)

Description

All these posters will be up on throughout both Monday and Tuesday, during both coffee breaks and the dedicated evening poster sessions.

89. A-0.01 - 45 Varieties: Solar Orbiter's SOOPs So Far

Andrew Walsh (European Space Agency (ESAC))

Poster

First Name: Andrew
Last Name: Walsh
Affiliation: European Space Agency (ESAC)

All Authors: A. P. Walsh, A. De Groof, C. Fischer, M. Janvier, D. Müller, P. Osuna, D. R. Williams

Abstract: During the 3 Remote Sensing Windows per orbit, and at certain times outside the Remote Sensing Windows, Solar Orbiter's science operations are organised into Solar Orbiter Observing Plans, or...

90. A-0.02 - Solar Orbiter/SPICE data products and analysis tools

Eric Buchlin (Institut d'Astrophysique Spatiale, CNRS/Université Paris-Saclay)

Poster

First Name: Eric
Last Name: Buchlin
Affiliation: Institut d'Astrophysique Spatiale, CNRS/Université Paris-Saclay

All Authors: Éric Buchlin, Terje Fredvik, Nils Janitzek, Frédéric Auchère, Martin Wiesmann, Daniel F. Ryan, Julia Faurie

Abstract: Science data from the Solar Orbiter/SPICE extreme-UV spectroimager are formatted and transformed into L1 to L3 FITS files by the SPICE...

91. A-0.03 - Solar-C: Reunification of our Sun's atmosphere

David Williams (European Space Agency)

Poster

First Name: David
Last Name: Williams
Affiliation: European Space Agency

All Authors: David Williams (on behalf of the Solar-C team)

Abstract: Solar-C is the next solar physics mission to be led by JAXA, with important participation from NASA, ESA, France, Germany, Italy, and Switzerland. Its overarching mission is to understand the fundamental plasma processes that drive solar...

92. A-0.04 - 28 years of Sun-as-a-star extreme ultraviolet light curves from SOHO EIT

Daniel Müller (ESA)

Poster

First Name: Daniel
Last Name: Müller
Affiliation ESA

All Authors: Emily Sandford, Frédéric Auchère, Annelies Mortier, Laura A. Hayes, Daniel Müller

Abstract: SOHO/EIT has been taking images daily in four EUV bandpasses since early 1996. We converted this extensive archive into a set of “Sun-as-a-star” light curves in EIT’s four bandpasses. For this, we summed the flux in each EIT...

247. A-0.05 - HelioSpectrotron 5000: an interactive solar atlas

Alex Pietrow (Leibnitz Institute for astrophysics (AIP))

Poster

First name: Alexander G.M.
Last name: Pietrow

All authors: Alexander G.M. Pietrow

Abstract: The HelioSpectrotron 5000 (HS5000) is an interactive, multiresolution solar spectral atlas designed to facilitate direct comparison between high-resolution reference spectra and observations obtained with a wide range of groundbased instruments. Based on the Hamburg FTS atlas, the HS5000 provides...

93. A-1.01 - Joy's law is driven by surface flows

Robert Cameron (Max Planck Institute for Solar System Research)

Poster

First Name: Robert
Last Name: Cameron
Affiliation: MPS

All Authors: Robert Cameron

Abstract: We will discuss observational constraints on Joy's law and the role of the near-surface flows. The observations will be related to numerical simulations of convective dynamos, and possibilities of extending the work using Solar Orbiter data will be discussed.

94. A-1.02 - Waves in the solar convection

Jesper Schou (Max Planck Institute for Solar System Research)

Poster

First Name: Jesper
Last Name: Schou
Affiliation: MPS

All Authors: Jesper Schou

Abstract: Helioseismology suffers from a number of difficult to understand effects. Among these are the so-called surface term and center-to-limb variations of travel times, both likely caused by the interaction of the waves with the near surface convection. With the ability to observe the same location...

95. A-1.03 - Constraining the outer boundary condition for the Babcock-Leighton dynamo models

Binghang Li (Beihang University)

Poster

First Name: Binghang
Last Name: Li
Affiliation: Beihang University

All Authors: Yukun Luo、Jie Jiang 、Binghang Li 、Zebin Zhang 、Ruihui Wang

Abstract: The evolution of the Sun’s large-scale surface magnetic field is well represented by surface flux transport (SFT) models, which can consequently provide a natural constraint for the outer boundary condition (BC) of Babcock–Leighton...

235. A-1.04 - Origin of Sunspot Group Tilt Angles: Convection Zone or Solar Surface?

Benxu Niu (Beihang University)

Poster

First Name: Benxu
Last Name: Niu
Affiliation: Beihang University

All Authors: Jie Jiang、Ruihui Wang

Abstract: Sunspot tilt angle is a crucial ingredient for Babcock–Leighton-type solar dynamos, yet whether this tilt is established within the convection zone or formed at the solar surface is actively debated. To address the issue, we analyze the sunspot tilt angles from the...

96. A-2.01 - THEMIS solar telescope to support Solar Orbiter observations

Etienne Pariat (French-Spanish Laboratory for Astrophysics in Canarias - CNRS)

Poster

First Name: Etienne
Last Name: Pariat
Affiliation: French-Spanish Laboratory for Astrophysics in Canarias - CNRS

All Authors: E. Pariat, B. Gelly

Abstract: THEMIS, the French 1-m class solar telescope located at Teide Observatory, has benefited from profound renovations and modification of its light path over the last 10 years. Thanks to a state-of-the art solar adaptive optics,...

97. A-2.02 - Flux Cancellation During the Emergence of Twisted Magnetic Flux Tubes

Vera Agalianou (University of Ioannina)

Poster

First Name: Vera
Last Name: Agalianou
Affiliation: University of Ioannina

All Authors: Agalianou V. , Patsourakos S. , Archontis V.

Abstract: We study magnetic flux cancellation during the emergence of a twisted magnetic flux tube using 3D resistive MHD simulations. A non-uniformly twisted tube rises from the convection zone and produces a complex photospheric multipolar...

98. A-2.03 - Reccurrent Eruptions from the emergence of a Toroidal Flux tube

Juxhin Zhuleku (University of Ioannina)

Poster

First Name: Juxhin
Last Name: Zhuleku
Affiliation: University of Ioannina

All Authors: Vasilis Archontis, Kostas Moraitis

Abstract: Active regions on the Sun are produced by magnetic flux tubes emerging from the solar interior to the surface. Previous numerical models based on cylindrical tubes led to sunspots drifting apart for large distances, contradicting observations of...

99. A-2.04 - Characterizing acoustic-gravity wave propagation in the lower solar atmosphere using SO/PHI-HRT observations

Vigeesh Gangadharan (Institut für Sonnenphysik (KIS))

Poster

First Name: Vigeesh
Last Name: Gangadharan
Affiliation: Institut für Sonnenphysik (KIS)

All Authors: G. Vigeesh

Abstract: We investigate the propagation characteristics of acoustic-gravity waves in the lower solar atmosphere using data obtained from the PHI High-Resolution Telescope onboard the Solar Orbiter. The full Stokes vector from a 6 hr long quiet Sun data obtained with the...

100. A-2.05 - Intensity contrast of magnetic elements in Ca II K line near the solar limb

Ajay kumar Yadav (Max Planck Institute for Solar System Research)

Poster

First Name: Ajay kumar
Last Name: Yadav
Affiliation: Max Planck Institute for Solar System Research, Goettingen, Germany

All Authors: Ajay Kumar Yadav, Natalie Krivova, Theodosios Chatzistergos, Sami K. Solanki, Kinga Albert, Johann Hirzberger, Gherardo Valori, Daniele Calchetti, David Orozco Su´arez, Hanna Strecker, Artem Ulyanov, Julian Blanco Rodr´ıguez

Abstract: Brightness of...

101. A-2.06 - Sunspots: From line-of-sight velocities towards velocity vectors in the penumbrae

David Ivens (Max Planck Institute for Solar System Research)

Poster

First Name: David Lykke
Last Name: Ivens
Affiliation: Max Planck Institute for Solar System Research

All Authors: David L. Ivens, Johann Hirzberger, Daniele Calchetti, Bernd Inhester, Sami K. Solanki

Abstract: The orbit of the ESA/NASA Solar Orbiter space mission allows for simultaneous observation of sunspots from different viewpoints. Combining data from the SO/PHI instrument...

102. A-2.07 - On the magnetic connectivity of sunspots and their surrounding network

Nazaret Bello González (Institut für Sonnenphysik (KIS))

Poster

First Name: Nazaret
Last Name: Bello González
Affiliation: Institut für Sonnenphysik (KIS)

All Authors: N. Bello González, I. Chifu, M. García Rivas, J. Jurčák, R. Schlichenmaier, and M. Schmassmann

Abstract: While stable sunspots have been extensively studied and their global surface properties are well understood, their formation process and connectivity with their surroundings...

103. A-2.08 - Revisiting sunspot bright rings: new insights from SO/PHI and other observations

Ilaria Ermolli (INAF Osservatorio Astronomico di Roma)

Poster

First Name: Ilaria
Last Name: Ermolli
Affiliation: INAF Osservatorio Astronomico di Roma

All Authors: Ilaria Ermolli, Fabrizio Giorgi, Mariarita Murabito, Theodosios Chatzistergos

Abstract: Both full-disk and high-resolution observations suggest the presence of a ring of enhanced continuum intensity surrounding large isolated sunspots. This brightness enhancement, typically about...

104. A-2.09 - The Magnetic Origin of Solar Coronal Jets and Campfires: SDO and Solar Orbiter Observations

Navdeep Panesar (LMSAL/SETI)

Poster

First Name: Navdeep
Last Name: Panesar
Affiliation: LMSAL/SETI

All Authors: Navdeep K. Panesar, Alphonse C. Sterling, Ronald L. Moore, Sanjiv K. Tiwari, Viggo H. Hansteen, David Berghmans, Mark Cheung, Daniel Müller, Frederic Auchere, and Andrei Zhukov

Abstract: Here we present the magnetic origin of different types of campfires and coronal jets, using line-of-sight magnetograms...

105. A-3.01 - The Hot Edges of Plage: Magnetic Geometry and Heating in the Solar Atmosphere

Souvik Bose (SETI/RoCS/UiO)

Poster

First Name: Souvik
Last Name: Bose
Affiliation: SETI/RoCS/UiO

All Authors: A. Sainz Dalda, S. Tiwari, V. Hansteen and B. De Pontieu

Abstract: At the interface between the Sun’s million-degree corona and its surface lies the chromosphere: cooler and far denser than the corona, yet it processes essentially all of the magnetoconvective energy that ultimately powers the outer...

108. A-3.03 - Inclusion of Lyman-α Radiative Transfer in the MURaM Code

Wenzhi Ruan (Max Planck Institute for Solar System Research)

Poster

First Name: Wenzhi
Last Name: Ruan
Affiliation: Max Planck Institute for Solar System Research

All Authors: Wenzhi Ruan, Damien Przybylski, Robert Cameron, Sami Solanki

Abstract: We present an extension of the MURaM solar/stellar atmosphere RMHD simulation code that improves the treatment of radiative heating and cooling, as well as the evolution of hydrogen level populations in...

109. A-3.04 - Chromospheric Fe I lines in the near-ultraviolet solar spectrum: Simulations and observations

Edvarda Harnes (Max Planck Institute for Solar System Research)

Poster

First Name: Edvarda
Last Name: Harnes
Affiliation: Max Planck Institute for Solar System Research

All Authors: E. Harnes, H. N. Smitha, D. Przybylski, A. Korpi-Lagg, R. Cameron, S. K. Solanki, T. Riethmüller, A. Feller, F. Iglesias, and the Sunrise III team

Abstract: The near-ultraviolet part of the solar spectrum contains several broad and strong Fe I lines with cores forming in...

110. A-3.05 - Investigating high-speed outflows from a coronal hole with UV spectroscopy

Mario Roco-Moraleda (Max Planck Institute for Solar System Research)

Poster

First Name: Mario
Last Name: Roco-Moraleda
Affiliation: Max Planck Institute for Solar System Research

All Authors: Mario Roco-Moraleda, Luca Teriaca, Pradeep Chitta, Hardi Peter, Sami K. Solanki

Abstract: Coronal holes have been known since decades to be the main source regions of the fast solar wind by correlating in situ particle speed measurements to their presence on the...

111. A-3.06 - Non-Gaussian line profiles in IRIS full-disk Si IV observations, and where to find them

Paola Testa (Harvard Smithsonian Center for Astrophysics)

Poster

First Name: Paola
Last Name: Testa
Affiliation: Harvard Smithsonian Center for Astrophysics

All Authors: Paola Testa, Bart De Pontieu, Tom Ayres

Abstract: Spectral observations of the transition region emission in the solar corona with the Interface Region Imaging Spectrograph (IRIS) at high spatial and spectral resolution reveal that a non-negligible portion of these line...

112. A-3.07 - Chromospheric–Coronal coupling in small-scale brightenings from ALMA and Solar Orbiter

Henrik Eklund (European Space Agency)

Poster

First Name: Henrik
Last Name: Eklund
Affiliation: European Space Agency

All Authors: Eklund, H., Nelson, C.

Abstract: Small-scale dynamic brightenings in the lower corona are observed frequently with the high-resolution Solar Orbiter EUI instrument, yet their formation mechanisms remain uncertain. Many events resemble signatures of small-scale magnetic reconnection, but their...

113. A-3.08 - pycfit

Therese Kucera (NASA Goddard Space Flight Center)

Poster

First Name: Therese
Last Name: Kucera
Affiliation: NASA Goddard Space Flight Center

All Authors: T. A. Kucera, A.A. Narock, S.J. Mumford

Abstract: Pycfit is a python-based spectral fitting tool utilizing new astropy modeling capabilities and inspired by SSW IDL CFIT. The software package consists of three parts: (1) a GUI that can be used to set up a template to fit a set of lines...

114. A-3.09 - Chromospheric Plages Detection using Hybrid Threshold-guided Fuzzy C-Means Segmentation Approach

Sanmoy Bandyopadhyay (Sister Nivedita University)

Poster

First Name: Sanmoy
Last Name: Bandyopadhyay
Affiliation: Sister Nivedita University, Kolkata

All Authors: Sanmoy Bandyopadhyay, Vaibhav Pant

Abstract: This work presents a method for detecting chromospheric plages in 393.416 nm images captured by the Precision Solar Photometric Telescope (PSPT) at the Mauna Loa Solar Observatory (MLSO), Hawaii. Plages are bright chromospheric...

115. A-3.10 - Online - Chromospheric and TR Signatures of a Coronal-Hole Jet with IRIS

Myrto Koletti (GNOI)

Poster

First Name: Myrto
Last Name: Koletti
Affiliation: NKUA/ Academy of Athens

All Authors: Gontikakis C, Patsourakos S, Tsinganos K

Abstract: We present a comprehensive multi-height spectroscopic analysis of a coronal hole jet ob- served on October 9, 2013, using data from the Interface Region Imaging Spectrograph (IRIS) and the Solar Dynamics Observatory (SDO). The event, occurring in...

116. A-4.01 - What’s Next: Solar Orbiter’s High-Latitude Era

Catherine Fischer (ESAC/ESA)

Poster

First Name: Catherine
Last Name: Fischer
Affiliation: ESAC/ESA

All Authors: C. Fischer, A. De Groof, M. Janvier, D. Müller, P. Osuna, A. P. Walsh, D. R. Williams, and the SOC team

Abstract: Launched in February 2020, Solar Orbiter has delivered an extensive data collection to the scientific community, including high-resolution images and magnetic maps, detailed spectra, and...

117. A-4.02 - The first out-of-ecliptic polar observations of the Sun using Solar Orbiter SPICE

Alessandra Giunta (University of Catania)

Poster

First Name: Alessandra
Last Name: Giunta
Affiliation: University of Catania

All Authors: Alessandra Giunta, Timothy Grundy, Sunil Sidher, Andrzej Fludra, Sarah Leeks, Steve Guest

Abstract: In Spring and Autumn 2025 Solar Orbiter observed the poles of the Sun from an out-of-ecliptic position, centred at heliographic latitudes of about 17 degrees, using its full suite of...

118. A-4.03 - Mapping High Latitude Solar Wind Source Regions with Solar Orbiter SPICE

Donald M. Hassler (Southwest Research Institute (SwRI))

Poster

First Name: Donald M.
Last Name: Hassler
Affiliation: Southwest Research Institute

All Authors: Donald M. Hassler (SwRI), Joe Plowman (SwRI), Tania Varesano (SwRI), Momchil Molnar (SwRI), Arpit Shrivastav (SwRI), Frédéric Auchère (IAS), Louise Harra (PMOD), Alessandra Giunta (RAL)

Abstract: High speed solar wind outflows are thought to occur predominantly on network boundaries and...

119. A-4.04 - Linking Transition Region Dynamics and Magnetic Topology Near the Solar South Pole — comparison of observations and models

Momchil Molnar (GNOI)

Poster

First Name: Momchil
Last Name: Molnar
Affiliation: Southwest Research Institute

All Authors: Momchil Molnar, Don Hassler, Joseph Plowman, Miho Janvier, Tania Varesano, Arpit Shrivastav, Matthias Rempel

Abstract: This project investigates the properties of transition region and coronal spectral lines observed close to the South solar Pole with SO/SPICE during the first high...

120. A-4.05 - Quantifying the Contributions of Interchange Reconnection and Wave Turbulence to the Origin of the Fast Solar Wind

Weihang Zhang (Peking University)

Poster

First Name: Weihang
Last Name: Zhang
Affiliation: Peking University

All Authors: Weihang Zhang, Hui Tian, Feng Chen, Yuhang Gao, Yajie Chen

Abstract: A prevailing hypothesis suggests that the fast solar wind is primarily driven by the mechanism of interchange reconnection. This process involves reconnection between low-lying closed magnetic loops and adjacent open magnetic field...

121. A-4.06 - Solar Cycle Variation of Polar Off-limb Chromosphere Observed by IRIS in the Mg II h & k lines

Stanislav Gunar (Astronomical Institute, Czech Academy of Sciences)

Poster

First Name: Stanislav
Last Name: Gunar
Affiliation: Astronomical Institute, Czech Academy of Sciences

All Authors: TEI Akiko, GUNAR Stanislav, OKAMOTO Takenori J., YOSHIDA Minami, KATSUKAWA Yukio

Abstract: The solar polar regions are of great interest because they are where magnetic reversals occur and the solar wind originates. Thus, a better understanding of the properties of...

122. A-4.07 - Reproducing the Evolution of the Solar Surface Magnetic Field since Cycle 24

Ruihui Wang (Beihang University, China)

Poster

First Name: Ruihui
Last Name: Wang
Affiliation: Beihang University

All Authors: Jie Jiang, Yukun Luo

Abstract: The solar polar magnetic field, a key science objective of the SO/PHI instrument, plays a central role in the solar cycle and solar dynamo processes. The Surface Flux Transport (SFT) model serves as the standard framework for understanding the evolution of the solar...

123. A-4.08 - On the solar convective conundrum and polar convection dynamics: a path theory to study global solar convection

Allan Sacha Brun (Dept. of Astrophysics, CEA Paris-Saclay)

Poster

First Name: Allan Sacha
Last Name: Brun
Affiliation: Dept. of Astrophysics, CEA Paris-Saclay

All Authors: A.S. Brun, Q. Noraz, A. Strugarek, G. Doebele

Abstract: Helioseismic inversions of the solar convective power distribution confirms that there is a disagreement on the amplitude of the large scale convection motions between different observational techniques as well as with...

124. A-4.09 - Coexistence of Longitudinal and Transverse Oscillations in Polar Plumes Observed with Solar Orbiter/Extreme Ultraviolet Imager

Upasna Baweja (Aryabhatta Research Institute of Observational Sciences)

Poster

First Name: Upasna
Last Name: Baweja
Affiliation Aryabhatta Research Institute of Observational Sciences

All Authors: Upasna Baweja, Vaibhav Pant, S. Krishna Prasad, Arpit Kumar Shrivastav, Tom Van Doorsselaere, Nancy Narang, Cis Verbeeck, M. Saleem Khan, and David Berghmans

Abstract: Magnetohydrodynamic waves are ubiquitous in the solar atmosphere. The seismology of these waves...

125. A-4.10 - Unveiling the Hidden Population of High-Frequency Kink Waves in Polar Plumes with Solar Orbiter/EUI

Yuhang Gao (Peking University; KU Leuven)

Poster

First Name: Yuhang
Last Name: Gao
Affiliation: Peking University; KU Leuven

All Authors: Yuhang Gao, Hui Tian, Richard Morton, Tom Van Doorsselaere, Daye Lim, Mingzhe Guo

Abstract: Polar coronal holes are the primary source regions of high-speed solar wind, yet the acceleration and heating mechanisms operating there remain poorly understood. Transverse magnetohydrodynamic (MHD)...

126. A-4.11 - Multiwavelength Study of Polar Coronal hole jets

Rohan Bose (ARIES, Nainital)

Poster

First Name: Rohan
Last Name: Bose
Affiliation: ARIES, Nainital

All Authors: Rohan Bose, Vaibhav Pant, Arpit Kumar Shrivastav

Abstract: Coronal jets are ubiquitous small-scale transient events in the solar atmosphere, often associated with magnetic reconnection. In this study, we investigate polar coronal hole jets observed simultaneously by HRI/Solar Orbiter, SJI/IRIS, and...

240. A-4.12 Exploring the solar polar magnetic landscape with SO/PHI-HRT observations

Nancy Narang (Royal Observatory of Belgium)

Poster

First Name: Chitradeep
Last Name: Saha
Affiliation: University of Reading

All authors: Chitradeep Saha, Daniele Calchetti, Lakshmi Pradeep Chitta, Nancy Narang, Đorđe Mijović, Adriana De-Sassi

Abstract: The magnetic field in the Sun’s polar regions can shape the large-scale structure of the solar corona, and pervades throughout the heliosphere. The polar magnetic field also serves...

127. A-4.13 - Online - Constraining Solar Polar Magnetism: Understanding Its Role in Cycle Variability and Coronal Field Evolution

Shaonwita Pal (CESSI, IISER Kolkata)

Poster

First Name: Shaonwita
Last Name: Pal
Affiliation: CESSI, IISER Kolkata

All Authors: Shaonwita Pal, Dibyendu Nandi

Abstract: The Sun’s polar magnetic fields play a fundamental role in governing solar cycle amplitude and the large-scale evolution of solar magnetism. Yet, these high-latitude magnetic fields are difficult to constrain with ground-based or space-based observations due...

128. A-4.14 - Online - Indirect Imaging of the Magnetic Reconnection Region in Solar Flares via Chromospheric Ribbon Structure

Chris Lowder (Southwest Research Institute, Boulder)

Poster

First Name: Chris
Last Name: Lowder
Affiliation: Southwest Research Institute, Boulder, Colorado, United States

All Authors: Chris Lowder, Bibhuti Kumar Jha, Ritesh Patel, Lisa Upton

Abstract: Imaging the solar polar regions remains a challenging endeavor - a victim of solar system geometry and orbital mechanics. There are dedicated spacecraft with ecliptic advantages to more...

129. A-5.01 - A comparative study of coronal microjet under the influence of p-modes

Ayu Ramada Sukarmadji (IRAP -Institut de Recherche en Astrophysique et Planétologie)

Poster

First Name: Ramada
Last Name: Sukarmadji
Affiliation: Institut de Recherche en Astrophysique et Planétologie

All Authors: Ramada Sukarmadji, Victor Réville, Bahaeddine Gannouni, Alexis Rouillard, Chuanpeng Hou, Jean Kempf

Abstract: Magnetic inversions known as switchbacks and velocity spikes have been ubiquitously observed in solar wind observations from the Parker Solar Probe and...

130. A-5.02 - Observational Evidence for Parker’s Magnetic Braiding in a Jet-like Solar Feature

Vasantharaju Naganna (Max Planck Institute for Solar System Research)

Poster

First Name: Vasantharaju
Last Name: Naganna
Affiliation: Max Planck Institute for Solar System Research

All Authors: N. Vasantharaju, H. Peter, L. P. Chitta, S. Mandal

Abstract: We report a prominent jet-like solar feature exhibiting signatures of magnetic braiding as originally proposed by Parker. Unlike typical jets, the feature shows an elongated, loop-aligned brightening and...

131. A-5.03 - Magnetic reconnection sustains the mass budget of the solar wind

Yajie Chen (Max Planck Institute for Solar System Research)

Poster

First Name: Yajie
Last Name: Chen
Affiliation: Max Planck Institute for Solar System Research

All Authors: Yajie Chen, Hardi Peter, Damien Przybylski , Haruhisa Iijima , and Lakshmi Pradeep Chitta

Abstract: The solar wind originates from open magnetic field regions on the Sun, but the processes relevant to its origin remain unsolved. We present a self-consistent numerical model of...

132. A-5.04 - Measuring Alfvén wave energy flux in closed and quasi-open coronal structures

Yingjie Zhu (ETHZ & PMOD/WRC)

Poster

First Name: Yingjie
Last Name: Zhu
Affiliation: ETH Zürich

All Authors: Yingjie Zhu, Tom Schad, Louise Harra, Sage Constantinou, Krzysztof Barczynski, Sarah Jaeggli, Enrico Landi, Judit Szente, Ioannis Kontogiannis, Adriana De-Sassi

Abstract: Active regions (ARs), in particular the quasi-open, fan-like loops at their boundaries, are suggested as one of the potential source regions...

133. A-5.05 - Modelling small-scale torsional waves in coronal loops

Samuel Skirvin (Northumbria University)

Poster

First Name: Samuel
Last Name: Skirvin
Affiliation: Northumbria University

All Authors: Samuel Skirvin, Richard Morton

Abstract: Magnetohydrodynamic (MHD) waves are abundant throughout the solar atmosphere. Their prevalence in the solar corona positions them as leading candidates to contribute to the heating of local plasma, ultimately accelerating the solar wind and producing EUV...

134. A-5.06 - Connectivity rewiring by active region emergence observed with SO/PHI

Dr Xiaohong Li (Max Planck Institute for Solar System Research)

Poster

First Name: Xiaohong
Last Name: Li
Affiliation: Max Planck Institute for Solar System Research

All Authors: Xiaohong Li, Sami K. Solanki, Thomas Wiegelmann, Gherardo Valori, Daniele Calchetti, Johann Hirzberger, Clara Froment, Henrik Eklund, Joachim Woch, Achim Gandorfer, the Solar Orbiter team

Abstract: We present Solar Orbiter/PHI-HRT observations of a young active region and a...

135. A-5.07 - Non-thermal widths in the solar corona

Arjun Kannan (Max Planck Institute for Solar System Research)

Poster

First Name: Arjun
Last Name: Kannan
Affiliation: Max Planck Institute for Solar System Research

All Authors: Arjun Kannan, Hardi Peter, Yajie Chen, Damien Przybylski

Abstract: The non-thermal line widths of spectral lines in the solar transition region and corona are considered to be a signature for different dynamical and heating processes. Surprisingly, the non-thermal motions...

136. A-5.08 - Very narrow transition region line profiles in a flare ribbon

Ziwen Huang (Max Planck Institute for Solar System Research)

Poster

First Name: Ziwen
Last Name: Huang
Affiliation: Max Planck Institute for Solar System Research

All Authors: Ziwen Huang; L. P. Chitta; L. Teriaca

Abstract: Flare ribbons, the footpoints of newly reconnected magnetic loops, are commonly associated with strong plasma flows and pronounced non-thermal line broadening in transition region resulting from impulsive energy deposition....

137. A-5.09 - Preliminary DEM Analysis of AR13664 Using SO/FSI and SDO/AIA with Deep Learning

Junmu Youn (Kyung Hee University)

Poster

First Name: Junmu
Last Name: Youn
Affiliation: Kyung Hee University

All Authors: Junmu Youn, Jeongwoo Lee , Mingyu Jeon, Daeil Kim, Seungwoo Ahn, Youngjae Kim, Hyun-Jin Jeong, and Yong-Jae Moon

Abstract: In this work, we introduce a method for determining the differential emission measures (DEMs) using Solar Orbiter/Extreme Ultraviolet Imager (EUI)/Full Sun Imager (FSI) and...

138. A-5.10 - Study of thermal non-equilibrium in a 3D hydrodynamic simulation of an active region and comparision with EUV observables

Nicolas Le Nestour (LPC2E)

Poster

First Name: Nicolas
Last Name: Le Nestour
Affiliation: LPC2E

All Authors: Le Nestour, N. ; Froment, C. ; Downs, C. ; Poirier, N., ; Auchère, F.; Masson, S.

Abstract: Thermal non-equilibrium (TNE) is a common feature of active-region loops. TNE consists of cyclic plasma evaporation and condensation driven by a highly stratified and quasi-steady heating. Long-period (several-hours)...

139. A-5.11 - Statistical Analysis of Energy Distributions of Quiet-Sun EUV Brightenings from High-Resolution Solar Orbiter Observations

Caro Hermans (KU Leuven & ROB)

Poster

First Name: Caro
Last Name: Hermans
Affiliation: KU Leuven & ROB

All Authors: Authors: Caro Hermans (1,2), Cis Verbeeck (1), Nancy Narang (1), Daye Lim (1,2), Sergei Shestov (1,3), Frédéric Auchère (4), Marilena Mierla (1,5), David Berghmans (1), Antoine Dolliou (6), Wim Schoutens (2), Johan Segers (2), Emil Kraaikamp (1), Konstantina Loumou (1), Ewan Dickson (1), Bogdan Nicula (1),...

140. A-5.12 - Online - Fine-scale structures of 3D magnetic reconnection in solar corona

Jiayi Liu (Nanjing University)

Poster

First Name: Jiayi
Last Name: Liu
Affiliation: Nanjing University

All Authors: Xin Chen, Yulei Wang, Fanpeng Shi, Cheng Xin

Abstract: Magnetic reconnection is a key mechanism that triggers the solar eruptions and heats the low corona. While the dynamic features of magnetic reconnection are extensively studied with MHD simulations, they are not well quantified by observations....

6. A-5.14 - Observations of Rapid Transient Activity in Coronal Bright Points using Solar Orbiter

Abhas Pradhan (MPS)

Poster

First Name: Abhas
Last Name: Pradhan
Affiliation: Max Planck Institute for Solar System Research

All Authors: A. Pradhan , L. P. Chitta , H. Peter

Abstract: Coronal bright points (CBPs) are compact million degree features typically observed in the quiet-Sun corona. As for the other coronal features, the mechanisms that heat CBPs remain unclear. Small-scale reconnection events such...

142. A-5.15 - 3D MHD shocks and associated plasma heating in the solar corona

Angelos Giannis (University of Ioannina, Greece)

Poster

First Name: Angelos
Last Name: Giannis
Affiliation: University of Ioannina, Greece

All Authors: Angelos Giannis and Vasilis Archontis

Abstract: The formation of magnetohydrodynamic (MHD) shock waves and the viscous heating deposited at them are studied in a three-dimensional (3D) bipolar active region in the Sun. We perform a compressible, resistive MHD simulation of magnetic flux...

143. A-5.16 - Thermal Evolution of Coronal Loops

Bhinva Ram (Max Planck Institute for Solar System Research)

Poster

First Name: Bhinva
Last Name: Ram
Affiliation: Max Planck institute for Solar System Research

All Authors: Bhinva Ram, Lakshmi Pradeep Chitta, Hardi Peter, Ferdinand Plaschke

Abstract: Understanding how the corona is heated remains a central challenge in solar physics. We investigate the role of impulsive heating processes (nanoflares) in powering the multi-million Kelvin plasma...

144. A-5.17 - Comparison of Observations of Microwave Emission from Solar Jets with MHD Simulations

Costas Alissandrakis (University of Ioannina, Department of Physics)

Poster

First Name: Costas
Last Name: Alissandrakis
Affiliation: University of Ioannina, Department of Physics

All Authors: C. E. Alissandrakis, V. Archontis, and K. Moraitis

Abstract: We computed the thermal microwave emission from a 3D magnetohydrodynamic (MHD) simulation and compared it with observations of solar jets. The simulation treats the emergence of magnetic flux into the solar...

145. A-5.18 - Spicule modeling from simultaneous ALMA and IRIS observations

Costas Alissandrakis (University of Ioannina, Department of Physics)

Poster

First Name: Costas
Last Name: Alissandrakis
Affiliation: University of Ioannina, Department of Physics

All Authors: C. E. Alissandrakis, J.-C. Vial and T. S. Bastian

Abstract: Spicules are small, nearly vertical jets of chromospheric plasma intruding into the hot corona up to a height of about 20 Mm. They are readily observed in chromospheric and transition region lines and...

146. A-5.19 - First Joint Observations of EUV Jets and Spicules with Solar Orbiter and BBSO

Jeongwoo Lee (New Jersey Institute of Technology)

Poster

First Name: Jeongwoo
Last Name: Lee
Affiliation: New Jersey Institute of Technology

All Authors: Jeongwoo Lee, Nengyi Huang, Haimin Wang

Abstract: We report two jets that occurred on 2022-10-29 around 19:08 UT and 19:13 UT captured by the Extreme Ultraviolet Imager’s High Resolution Imager (EUI-HRI) in Solar Orbiter (SolO) and the Visible Imaging Spectrometer (VIS) of the 1.6 m,...

148. A-5.20 - Study of active region coronal jets from the lower to the upper corona combining EUI and Metis data

Angelos Michailidis (University of Ioannina)

Poster

First Name: Angelos
Last Name: Michailidis
Affiliation: University of Ioannina

All Authors: Michailidis A., Russano, G., Sahani, P.S., Gontikakis, C., Andretta, V., Daglis, I.A. and Vlahakis, N.

Abstract: In this work we use multi-instrumental observations to study Active Region (AR) coronal jets. Such jets are usually observed either at the base of the corona in Extreme...

149. A-5.21 - Extracting Magnetic Constraints from He I D3 in the METIS VL Channel

Jiri Stepan (Astronomical Institute, Czech Academy of Sciences)

Poster

First Name: Jiri
Last Name: Stepan
Affiliation: Astronomical Institute, Czech Academy of Sciences

All Authors: J. Stepan, P. Heinzel, S. Jejcic, R. Susino, and the Metis Team.

Abstract: METIS on Solar Orbiter measures polarized visible light in the VL channel (580–640 nm), recording linear polarization only. The He I D3 line at 587.6 nm lies within this passband; under suitable...

150. A-5.22 - Probing Dynamics in a Pseudostreamer using Inner and Middle Corona Observations of Solar Orbiter

Arpit Kumar Shrivastav (Southwest Research Institute, Boulder,)

Poster

First Name: Arpit Kumar
Last Name: Shrivastav
Affiliation: Southwest Research Institute, Boulder, Colorado

All Authors: Rohan Bose, Momchil Molnar, Joseph Plowman, Lakshmi Pradeep Chitta, Vaibhav Pant, Donald Hassler, Tania Varesano, Ritesh Patel, Daniel B. Seaton, Marelina Mierla, Andrei N. Zhukov, David Berghmans

Abstract: Large-scale coronal structures, such as streamers and...

151. A-5.23 - Coronal 3D reconstruction for new and upcoming missions and multiple vantage points Coronal 3D reconstruction for new and upcoming missions and multiple vantage points

Joseph Plowman (SwRI Boulder)

Poster

First Name: Joseph
Last Name: Plowman
Affiliation: SwRI Boulder

All Authors: Plowman, J., Caspi, A., Hassler, D., Molnar, M., Seaton, D., Srivastav. A., Varesano, T.

Abstract: We present updated results on coronal 3D reconstruction with the CROBAR method, both with single and multiple vantage points using SDO and Solar Orbiter. The results include improved reconstruction of lower...

152. A-5.24 - Calibration of the coronagraphic observations of EUI/FSI

Frédéric Auchère (Institut d'Astrophysique Spatiale)

Poster

First Name: Frédéric
Last Name: Auchère
Affiliation: Institut d'Astrophysique Spatiale

All Authors: Frédéric Auchère, Elie Soubrié, Noa Azibeiro, David Berghmans, Emil Kraaikamp, Phil Smith, Don Hassler Jean-Pierre Wuelser

Abstract: FSI carries out observations in two narrow bands of the EUV spectrum centered on the 30.4 nm line of He II and on the 17.4 nm line of Fe X. It has a...

153. A-5.25 - Towards a FAIR catalog of EUV brightenings observed by EUI on Solar Orbiter

Cis Verbeeck (Royal Observatory of Belgium)

Poster

First Name: Cis
Last Name: Verbeeck
Affiliation: Royal Observatory of Belgium

All Authors: Cis Verbeeck1, Nancy Narang1, Marilena Mierla1,2, Daye Lim1,3, Caro Hermans1,3, Frédéric Auchère4, Véronique Delouille1, David Berghmans1, Tom Van Doorsselaere3, Sergei Shestov1, Elke D’Huys1, Antoine Dolliou5, Susanna Parenti6, Emil Kraaikamp1, Konstantina Loumou1, Luciano Rodriguez1 1...

154. A-5.26 - Coordinated Observations of the Solar Corona with Solar Orbiter/EUI and Proba-3/ASPIICS

Luciano Rodriguez (Royal Observatory of Belgium)

Poster

First Name: Luciano
Last Name: Rodriguez
Affiliation: Royal Observatory of Belgium

All Authors: Luciano Rodriguez, David Berghmans, Andreas Debrabandere, Emil Kraaikamp, Konstantina Loumou, Marilena Mierla, Dana Talpenau, Cis Verbeeck, Andrei Zhukov, Zoe Zontou

Abstract: Solar Orbiter’s Extreme Ultraviolet Imager (EUI) continues to deliver unprecedented views of the solar...

155. A-5.27 - Dynamics of a polar coronal plume observed by Proba-3/ASPIICS coronagraph

Nawin Ngampoopun (Max Planck Institute for Solar System Research)

Poster

First Name: Nawin
Last Name: Ngampoopun
Affiliation: Max Planck Institute for Solar System Research

All Authors: N. Ngampoopun, H. Peter, L. P. Chitta, A. Dolliou, A. Zhukov, L. Dolla, S. Shestov, B. Bourgoignie, S. Fineschi, S. Gunar, P. Lamy, M. Mierla, P. Rudawy, K. Tsinganos

Abstract: Coronal plumes are long-lived structures inside coronal holes that extend to the heliosphere...

156. A-5.28 - DKIST Observations of omnipresent kink and Alfven waves, and their potential use for heating

Tom Van Doorsselaere (KU Leuven)

Poster

First Name: Tom
Last Name: Van Doorsselaere
Affiliation: KU Leuven

All Authors: Tom Van Doorsselaere, Richard Morton, Yuhang Gao, Max McMurdo, Luka Banovic

Abstract: With the DKIST high resolution, high cadence observations, it is now possible to perform spectroscopy of coronal loops in the off-limb region. Using this spectroscopy, the omnipresence of kink waves is once again...

157. A-5.29 - MR

Alexis Blaise (CEA-Saclay)

Poster

First Name: Alexis
Last Name: Blaise
Affiliation: CEA-Saclay

All Authors: Alexis Blaise, Antoine Strugarek, Adam Finley, Miho Janvier, Eric Buchlin

Abstract: The Sun exhibits a cyclic magnetic activity that impacts our technological society on Earth. This activity originates in regions of concentrated magnetic flux called active regions. Active regions can produce impulsive...

158. A-5.30 - Cyclic variations in the solar differential rotation pattern based on the Hα filament data (1957–1993)

Darejan Japaridze (ABAO & IlIAUNI)

Poster

First Name: Darejan
Last Name: Japaridze
Affiliation: ABAO & IlIAUNI

All Authors: Darejan Japaridze

Abstract: The study investigates the differential rotation of solar chromospheric Hα filaments using polynomial regression models derived from Abastumani Astrophysical Observatory data. Discrete orthogonal polynomials of up to degree 4 were employed, with model selection guided by...

159. A-5.31 - Online - On the Origin of Coronal Picoflare Jets

Annu Bura (Indian Institute of Astrophysics, India)

Poster

First Name: Annu
Last Name: Bura
Affiliation: Indian Institute of Astrophysics, India

All Authors: Annu Bura, Daniel Nóbrega-Siverio, Tanmoy Samanta, Jayant Joshi

Abstract: Small-scale jet-like eruptions, such as picoflare jets and jetlets, are recognized as potential contributors to coronal heating and solar wind acceleration, yet their physical origin is still not fully...