Splinter Meeting Exoplanets

Exploring the diversity of extrasolar planets

Time: Thursday September 16, 14:00-15:45 and 16:15-18:00 and Friday September 17, 14:00-18:00 CEST (UTC+2)

Room: virtual Exo

Convenor(s): H. Rauer [1], C. Dullemond [2], A. Reiners [3], A. Hatzes [4], W. Kley [5], R. van Boekel [6]
[1] DLR/TU/FU Berlin, [2] Universität Heidelberg, [3] Universität Göttingen, [4] Tautenburger Landessternwarte, [5] Universität Tübingen, [6] MPIA

One of the most exciting recent discoveries in astronomy is the existence of a huge variety of extrasolar planets orbiting other stars, including numerous multi-planet systems. Exoplanets can be very different to those planets found in our Solar System, and range from the so-called “Hot Jupiter” and “mini-Neptune” gas planets to large rocky planets (“super”-Earths). Linking observational methods for planet detection and characterization with theory and numerical modeling is key to understanding the diversity and complexity of exoplanets.
Different international projects such as CARMENES, NGTS, GAIA, CHEOPS, K2, TESS, and in future JWST, ARIEL, PLATO (will) provide a wealth of observational data that will lead to the detection of new exoplanets, an improved characterization of already known exoplanets and its host stars as well as spectra of exoplanetary atmospheres. Theoretical research on exoplanets covering numerical modeling of planetary interiors, atmospheres, and planet formation utilizes the observations to facilitate further insights into the classification and evolution of exoplanetary systems.
The goal of the AG 2021 splinter meeting "Exploring the diversity of extrasolar planets" is to bring together the German exoplanet community from observation and theory to address these major research questions:

  • What does the diversity of exoplanets tell us about their formation processes and the evolution of planets and planetary systems?
  • What can we learn about the astrophysical conditions necessary to harbor life and are these conditions common in our Milky Way?
The splinter meeting welcomes all contributions that analyze and interpret already available or upcoming exoplanet data. The meeting will be a combination of invited talks presenting a review of the links between observational and theoretical efforts as well as contributed talks highlighting recent advances. Theoretical studies without any link to exoplanet observations as well as studies of Solar System bodies are not part of this splinter meeting. Also, work related to instrumental set-up in observational projects is not covered by this splinter meeting.


Thursday September 16, 14:00-15:45 Exploring the diversity of extrasolar planets (virtual Exo)

14:00  Dimitri Veras:
Multiple techniques for measuring exoplanets orbiting white dwarfs

14:15  Alexis Smith:
K2-99 revisited: a non-inflated warm Jupiter, and a temperate giant planet on a 523-d orbit around a subgiant

14:30  F. Mackebrandt:
The stellar pulsation timing method to detect sub-stellar companions

14:45  Paula Gorrini:
GJ 832c: an artifact of stellar activity

15:00  René Heller:
Earth-sized Transiting Planets in the Stellar Habitable Zones - from Kepler to PLATO

15:15  Аhmad Mazidabadi Farahani:
Refined ephemeris for three hot Jupiters using ground-bases and TESS observations

15:30  Yiannis Tsapras:
Finding cold and distant exoplanets with microlensing

Thursday September 16, 16:15-18:00 Exploring the diversity of extrasolar planets (virtual Exo)

16:15  Sandra Jeffers:
RedDots: All terrestrial planets within 5pc

16:30  Anton Krieger:
Characterization of young accreting planets

16:45  Cyril Gapp:
Deciphering Jupiter’s atmospheric chemistry as a benchmark for extrasolar gas giants using Herschel/PACS

17:00  Moritz Lietzow:
The potential of polarimetry to characterize clouds in exoplanetary atmospheres

17:15  Engin Keles:
High-resolution transmission spectroscopy of the super-Earth 55 Cnc e

17:30  Katja Poppenhäger:
Habitability and loss of planetary hydrogen-helium atmospheres - the K dwarf advantage

17:45  Fabian Wunderlich:
Detectability of biosignatures on LHS 1140 b

Friday September 17, 14:00-18:00 Exploring the diversity of extrasolar planets (virtual Exo)

14:00  Julia Venturini:
Super-Earths, mini-Neptunes, and the Radius Valley: linking observations with theory

14:45  Thomas Rometsch:
Vortices by planets live shortest in disks with moderate cooling

15:00  Alexandre Emsenhuber:
The New Generation Planetary Population Synthesis (NGPPS): Comparison with the HARPS GTO survey

15:45  Philipp Baumeister:
Water oceans on high-density, stagnant-lid exoplanets from coupled interior-atmosphere modeling

16:00  Tobias Moldenhauer:
Atmospheric recycling of super-Earths and mini-Neptunes: The effects of core mass, headwind and opacity

16:15  Cassian Herbon:
Least-squares deconvolution of HARPS spectra

16:22  Enrique Sanchis:
Effects of tidal heating in Proxima Centauri b's thermal evolution

16:30  Ekaterina Ilin:
Using direct flare localization to understand exo-space weather and stellar magnetic fields

16:45  Matthias Ammler-von Eiff:
On stellar chemical abundances for studies of exoplanets - preparing for PLATO science using CoRoT examples

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