Solar Orbiter - IRIS - ADITYA - Joint Workshop

Session

Chromosphere and transition region

3

16 Mar 2026, 14:10

Harnack Haus (Berlin)

28. Numerical modeling of the chromosphere and comparison with observations

Damien Przybylski (Max Planck Institute for Solar System Research)

16/03/2026, 14:10

Review talk

First Name: Damien
Last Name: Przybylski
Email Address: przybylski@mps.mpg.de
Affiliation: Max Planck Institute for Solar System Research

All Authors: D. Przybylski

Abstract: The solar chromosphere presents a formidable modelling challenge. The coupling of the turbulent convection zone to the underlying magnetic field leads to it's highly dynamic nature, displaying spicules,...

29. Mg II Single-Peak Emission and Chromospheric Magnetic Fields Using IRIS and DKIST

João da Silva Santos (National Solar Observatory (USA))

16/03/2026, 14:40

Contributed talk

First Name: João M.
Last Name: da Silva Santos
Email Address: jdasilvasantos@nso.edu
Affiliation: National Solar Observatory (USA)

All Authors: Joshua Bentley, Serena Criscuoli, Tom Schad, Momchil Molnar, Alex Pietrow, Bart De Pontieu, Juan Martinez-Sykora

Abstract: Single-peak Mg II h&k profiles are commonly observed in solar plage regions, and they are known to indicate hot,...

107. A study of synthetic Mg II h&k lines from a set of MURaM-ChE simulations

Patrick Ondratschek (Max Planck Institute for Solar System Research)

16/03/2026, 14:55

Poster

First Name: Patrick
Last Name: Ondratschek
Affiliation: Max Planck Institute for Solar System Research

All Authors: P. Ondratschek, D. Przybylski, H.N. Smitha, R. Cameron, S. K. Solanki

Abstract: The Mg II h&k lines are well-suited to study the solar chromosphere. Forming under non-local thermodynamic equilibrium conditions, the line formation of these lines is complicated and not...

30. online – Small-Scale Magnetic Reconnection in the Solar LowAtmosphere: Ubiquity, Transition-Region Heating, and Spicule Generation

Jayant Joshi (Indian Institute of Astrophysics, Bengaluru)

16/03/2026, 15:40

Invited talk

First Name: Jayant
Last Name: Joshi
Email Address: jayant.joshi@iiap.res.in
Affiliation: Indian Institute of Astrophysics, Bengaluru

All Authors: Jayant Joshi

Abstract: Recent high-resolution observations reveal that small-scale magnetic reconnection in the solar lower atmosphere, manifested as quiet-Sun Ellerman bombs (QSEBs), is far more ubiquitous than previously recognised,...

31. Spicules in MURaM: Statistics, Structure, and Driving

Sanghita Chandra (Max Planck Institute for Solar System Research)

16/03/2026, 16:00

Contributed talk

First Name: Sanghita
Last Name: Chandra
Email Address: chandra@mps.mpg.de
Affiliation: Max Planck Institute for Solar System Research

All Authors: Sanghita Chandra, Robert Cameron, Damien Przybylski, Sami K. Solanki

Abstract: It has been suggested that spicules play a role in coronal heating, with reports of an association with transition region (e.g. Si IV emission) and coronal...

32. online – Generation of Data Products for the Solar Ultraviolet Imaging Telescope (SUIT)

Janmejoy Sarkar (Max Planck Institute for Solar System Research and IUCAA)

16/03/2026, 16:15

Contributed talk

First Name: Janmejoy
Last Name: Sarkar
Email Address: sarkarjj@mps.mpg.de
Affiliation: Max Planck Institute for Solar System Research and IUCAA

All Authors: Janmejoy Sarkar, VN Nived, Soumya Roy, Rahul Gopalakrishnan, Rushikesh Deogaonkar, Sreejith Padinhatteeri, Durgesh Tripathi, A.N. Ramaprakash, Achim Gandorfer, Sami Solanki.

Abstract: The Solar Ultraviolet Imaging Telescope...

33. Non-thermal broadening in active regions

Kyuhyoun Cho (LMSAL / SETI)

16/03/2026, 16:30

Invited talk

First Name: Kyuhyoun
Last Name: Cho
Email Address: kcho@seti.org
Affiliation: LMSAL / SETI

All Authors: Bart De Pontieu, Paola Testa

Abstract: Nonthermal broadening in spectral lines formed in the solar transition region has been a subject of interest for several decades, as its underlying mechanisms remain unclear and it may provide key insights into the heating of the upper...

34. Accessing the fine temporal scale of EUV brightenings and their quasi-periodic pulsations: 1 second cadence observations by Solar Orbiter/EUI

Daye Lim (Royal Observatory of Belgium and KU Leuven)

16/03/2026, 16:50

Contributed talk

First Name: Daye
Last Name: Lim
Email Address: daye.lim@oma.be
Affiliation: Royal Observatory of Belgium and KU Leuven

All Authors: Daye Lim, Tom Van Doorsselaere, Nancy Narang, Laura A. Hayes, Emil Kraaikamp, Aadish Joshi, Konstantina Loumou, Cis Verbeeck, David Berghmans, and Krzysztof Barczynski

Abstract: Small-scale extreme-ultraviolet (EUV) transient brightenings are...

35. Probing Transition Region–Solar Wind Connectivity with SPICE and SWA/HIS Instruments

Tania Varesano (SWRI / CU Boulder)

16/03/2026, 17:05

Metcalf Award

First Name: Tania
Last Name: Varesano
Email Address: tania.varesano@colorado.edu
Affiliation: SWRI / CU Boulder

All Authors: Tania Varesano, Don Hassler, Yeimy Rivera, Joe Plowman

Abstract: The SPICE (Spectral Imaging of the Coronal Environment) and HIS (Heavy Ion Sensor) instruments on Solar Orbiter were designed to enable us to trace the source regions of elemental enrichment...