Splinter Meeting Exoplanets

Exploring the diversity of extrasolar planets

Time: Wednesday September 23, 14:00-18:00 and Thursday September 24, 09:00-13:00 and 14:00-18:00 CEST (UTC+2)

Room: virtual room D

Convenor(s): H. Rauer, C. Dullemond, A. Reiners, A. Hatzes, W. Kley, J. Schmitt, R. van Boekel
DLR/FU Berlin et al.

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 2020 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.


Wednesday September 23, 14:00-18:00 Exploring the diversity of extrasolar planets - Session I (virtual room D)

14:00  Yann Alibert :
The New Generation Planetary Population Synthesis (NGPPS)

14:35  A. Chaushev:
New Discoveries from the Next Generation Transit Survey

14:50  Markus Hundertmark:
Microlensing exoplanets in the age of modern large-scale surveys

15:05  Hubert Klahr:
Diversity of extrasolar planetesimals

15:20  Kristine Lam:
GJ 367 b: an Ultra Short Period Super-Mars found by TESS

15:35  Break

16:05  Cabrera:
CHEOPS early results

16:20  Judith Korth :
Kepler-289: Combining the forces

16:35  René Heller:
Challenges of validating Earth-like transiting planets around Sun-like stars

16:50  Óscar Carrión-González:
Direct-imaging of cold exoplanets: The importance of knowing the planet radius

17:05  Mackebrandt, Felix:
The EXOTIME project: Using the stellar pulsation timing method to detect sub-stellar companions

17:20  Xanthippi Alexoudi:
Role of the impact parameter in exoplanet transmission spectroscopy

Thursday September 24, 09:00-13:00 Exploring the diversity of extrasolar planets - Session II (virtual room D)

09:30  Sandra Jeffers:
RedDots: detecting terrestrial planets within 5pc

09:45  Sascha Grziwa:
EXOTRANS for the advanced detection and evaluation of transiting planets

10:00  Martin Schlecker:
a compositional link between
 warm super-Earths and cold Jupiters

10:15  Paola Pinilla:
Mdust-Mstar & Rdust-Mstar Relations in Protoplanetary Disks: Models vs. Observations

10:30  Sareh Ataiee:
Can planets be pushed into a disc inner cavity by a resonant chain?

10:45  Anna Penzlin:
Parking planets in circumbinary discs

11:00  Break

11:30  Gabriel-Dominique Marleau:
Hydrogen-line emission from accreting planets: fluxes, line shapes, and a new correlation

11:45  J. D. Melon Fuksman:
Radiative modelling of young accreting planets

12:00  Philipp Baumeister:
Shaping atmospheres of terrestrial exoplanets with interior-atmosphere feedback processes

12:15  Tobias Moldenhauer:
The Recycling of Planetary Proto-Atmospheres

Thursday September 24, 14:00-18:00 Exploring the diversity of extrasolar planets - Session III (virtual room D)

14:00  Laura Kreidberg:
Big Steps Toward Small Worlds: Atmosphere Characterization of Sub-Neptunes and Super-Earths

14:35  Engin Keles:
Probing the atmosphere of HD189733b with the alkali lines

14:50  Laura Ketzer:
Estimating the atmospheric mass loss of V1298 Tau's four young planets

15:05  Mahmoudreza Oshagh:
The widest broadband transmission spectra of HD189733b obtained from ground-based observation

15:20  Eike Wolf Gunether:
Flares and CMEs on cool stars

15:35  Break

16:05  K. Poppenhaeger:
Connecting helium ionisation in exoplanet atmospheres with stellar X-ray flux

16:20  Konstantin Herbst:
INCREASE - A model suite to study the INflucence of Cosmic Rays on Exoplanetary AtmoSpherEs

16:35  Jiri Zak:
High-resolution Transmission Spectroscopy of Four Hot Inflated Gas Giant Exoplanets

16:50  Miriam Rengel:
Key physico-chemical mechanisms in (exo)planetary atmospheres and their impacts on the observables

Related contributions

Florian LiebingA novel, robust approach to determine the strength of convective blueshift
Hubert KlahrDiversity of extrasolar planetesimals