Illuminating the Cosmos: Chemical Elements in Stars, Planets, Nebulae, and Transient Extra-galactic Events

Session

Exoplanetary Atmospheres

9 Nov 2026, 13:30

Auditorium (Haus der Astronomie)

61. TBA

Antonio Garcia Munoz

09/11/2026, 13:30

Talks

9. Challenging exoplanet atmospheric detections with 3D non-LTE stellar spectra

Gloria Canocchi (Stockholm University)

09/11/2026, 14:00

Exoplanetary Atmospheres

Talks

High-resolution transmission spectroscopy from ground-based facilities is a powerful tool for characterizing the atmospheres of close-in exoplanets. However, its interpretation depends on accurately accounting for stellar effects during transit, particularly the center-to-limb variation (CLV) and the Rossiter–McLaughlin (RM) effect. If neglected, these can mimic or distort planetary absorption...

19. Glossy Silicate Clouds on the Scorched Dayside of LTT9779b

Dr Suman Saha (Steward Observatory, University of Arizona)

09/11/2026, 14:20

Exoplanetary Atmospheres

Talks

Discovered deep within the “Neptunian desert", LTT9779b remains the only known ultra-hot Neptune, prompting significant speculation regarding its unique formation and evolutionary history. Its exceptionally high geometric albedo has previously been attributed to either clouds or an extremely metal-rich atmosphere. Here, we present a comprehensive panchromatic analysis of its dayside atmosphere...

62. TBA

Daria Kubyshkina

09/11/2026, 15:30

Talks

24. The Impact of the Chemical Evolution of Protoplanetary Disks on Planet Formation.

Dr Octavio Guilera (Investigador Independiente (IALP-CONICET))

09/11/2026, 16:00

Exoplanetary Atmospheres

Talks

We seek to understand how the chemical evolution of protoplanetary disks influences the architecture and composition of planetary systems. Ice lines, where molecules freeze out, create distinct regions within the disk, altering elemental ratios like C/O, C/N, and N/O. Crucial for chemical stratification and planet formation, these lines increase solid density and facilitate planetesimal...

39. Comparing radiation methods used in astrophysical codes in the context of protoplanetary disks

Prakruti Sudarshan (Max Planck Institute for Astronomy)

09/11/2026, 16:20

Exoplanetary Atmospheres

Talks

Radiation controls the thermal structure, dynamics, chemistry and observational signatures of protoplanetary disks, all of which shape how and where planets eventually form. While a full radiation hydro- treatment provides the most physically realistic description of disks, the high computational cost often necessitates the use of approximate radiative transfer methods. With this project, we...