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Sep 16 – 20, 2019
University of Stuttgart, Campus Vaihingen
Europe/Berlin timezone

From protoplanetary disks to exoplanets - the story of their formation


Tuesday, September 17, 14:00-18:30
Wednesday, September 18, 14:00-18:30

Room: 9.41

Dmitry Semenov (MPIA Heidelberg)
Gesa H.-M. Bertrang (MPIA Heidelberg)
Bertram Bitsch (MPIA Heidelberg)
Mario Flock (MPIA Heidelberg)

The formation of stars and their planetary systems are among the key questions in science.
Only by addressing these fundamental questions, we can hope to unravel whether solar systems like ours are common and how many Earth-like planets our Galaxy may harbor. In recent years
substantial progress in this direction has been achieved thanks to a powerful combination
of high-resolution, high-sensitivity observations aided by detailed theoretical modeling
and laboratory studies. The composition and properties of exoplanetary atmospheres are now
becoming routinely accessible thanks to the high-resolution coronographic or spectroscopic
observations from the ground and space. The diversity of observed exoplanets and their
atmospheric composition suggests a tight link between exoplanets and the properties of their
pre-natal environments, protoplanetary disks. From the optical to the (sub-)millimeter,
observations provide strong evidence for the ongoing planet formation and the presence of
planets in their pre-natal environments, protoplanetary disks.

The goal of the AG 2019 splinter meeting entitled "From protoplanetary disks to exoplanets
- the story of their formation" is to bring together the German astrophysical community studying
exoplanets, planet formation, and protoplanetary disks. Beside summarizing the status of the
field in several lectures and presenting the latest, most interesting results, the organizers
hope to stir the discussions and exchange of ideas within our diverse research field.
Key scientific topics include (but are not limited to):

  • What are the physics and chemistry of planet-forming disks? How do these disks evolve?
  • What are the conditions under which planets form?
  • Which processes shape the properties of planets and their atmospheric compositions?
  • Is our solar system unique or common?
  • Which processes do we have to test (and exclude) in order to identify the imprints of planets on disks?
  • Might other processes (such as magnetic fields) solve the chicken-and-egg problem of planet formation?

Invited speakers:

  • Barbara Ercolano: "The evolution and dispersal of protoplanetary
    disks" (LMU Munich, DE)
  • Geoffroy Lesur: "The structure and evolution of protoplanetary disks"
    (Uni. Grenoble, FR)
  • Wilhelm Kley: "Planet migration in protoplanetary disks" (Uni. Tuebingen, DE)
  • Kees Dullemond: "Theory and observations of dust in protoplanetary discs" (ITA/ZAH Heidelberg)
  • Mark Wyatt: "Debris disks" (IoA, Cambride, UK)


Tuesday, September 17 (14:00-18:30)

14:00 - 14:05: Welcome  (SOC)

14:05 - 14:55: Invited talk (40 + 10 min):
    C. Dullemond (ITA Heidelberg), "Theory and observations of dust in protoplanetary discs"

14:55 - 15:00: Poster presentations (1 slide x 2 min)

15:10 - 15:40: Coffee break & Poster session

15:50 - 16:40: Invited talk (40 + 10 min):
B. Ercolano (LMU Munich), "The evolution and dispersal of protoplanetary disks"

16:40 - 17:00: Contributed talk (15 + 5min):
G.-D. Marleau (Uni. Tübingen), "Warm-start planets from core accretion, and H alpha from accreting planets: Thermal and radiative properties of the accretion shock"

17:00 - 17:15: Short pause

17:15 - 17:35: Contributed talk (15 + 5min):
G. Bertrang (MPIA Heidelberg), "Moving shadows and pressure bumps: What we learn from multi-epoch, multi-wavelength observations"

17:35 - 17:55:  Contributed talk (15 + 5min):
B. Riaz (USM/LMU Munich), "ALMA reveals a pseudo-disk in a proto-brown dwarf"

17:55 - 18:15:  Contributed talk (15 + 5min):
M. Gárate (LMU Munich), "Can dust back-reaction stop the accretion of gas at the water snowline?"


Wednesday, September 18 (14:00-18:30)

14:00 - 15:00: Invited talk (40 + 10 min):
W. Kley (Uni. Tübingen), "Planet migration in protoplanetary disks"

15:10 - 15:40 Coffee Break & Poster Session

15:50 - 16:40: Invited talk (40 + 10 min):
P. Pinilla (MPIA Heidelberg), "First steps of planet formation around very low mass stars"

16:40 - 17:00: Contributed talk (15 + 5min):
R. Kuiper, "Modeling the Formation of super-Earth Atmospheres"

17:00 - 17:20:  Contributed talk (15 + 5min):
S. Savvidou (MPIA Heidelberg), "Influence of grain growth on the thermal structure of protoplanetary discs"

17:20 - 17:40:  Contributed talk (15 + 5min):
P. Mollière (MPIA Heidelberg), "Retrieving the atmospheric properties of young, cloudy gas giants"

17:40 - 18:30: Invited talk (40 + 10 min):
M. Wyatt (IoA, Cambridge, UK), "Debris disks"

Related posters:

Name Title
SCHOBERT, Benjamin The impact of accretion heating and ther-
mal conduction on the dead zone of protoplanetary disks
LÖHNERT, Lucas Mixing Length Estimates for Gravitational
SMIRNOV-PINCHUKOV, Grigorii Chemistry in Disks: model-
ing the substructure of circumstellar disks