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Testing the Jeans, Toomre and Bonnor-Ebert concepts for planetesimal formation: 3D streaming instability simulations of diffusion regulated formation of planetesimals
Hubert Klahr, Andreas Schreiber
We perform streaming instability simulations at Hill density and beyond, to demonstrate that Planetesimal formation is not completed when pebble accumulations exceed the local Hill…
The CARMENES search for exoplanets around M dwarfs -- LP 714-47b (TOI 442.01): Populating the Neptune desert
S. Dreizler, I., J. +134
We report the discovery of a Neptune-like planet (LP 714-47 b, P = 4.05204 d, m_b = 30.8 +/- 1.5 M_earth , R_b = 4.7 +/- 0.3 R_earth ) located in the 'hot Neptune desert'. Confirma…
A Highly Eccentric Warm Jupiter Orbiting TIC 237913194
Martin Schlecker, Diana Kossakowski, Rafael Brahm +28
The orbital parameters of warm Jupiters serve as a record of their formation history, providing constraints on formation scenarios for giant planets on close and intermediate orbit…
Linking planetary embryo formation to planetesimal formation II: The impact of pebble accretion in the terrestrial planet zone
Oliver Voelkel, Rogerio Deienno, Katherine Kretke +1
The accretion of pebbles on planetary cores has been widely studied in recent years and is found to be a highly effective mechanism for planetary growth. While most studies assume…
Linking planetary embryo formation to planetesimal formation I: The impact of the planetesimal surface density in the terrestrial planet zone
Oliver Voelkel, Rogerio Deienno, Katherine Kretke +1
The growth time scales of planetary embryos and their formation process are imperative for our understanding on how planetary systems form and develop. They determine the subsequen…
High Resolution Parameter Study of the Vertical Shear Instability
Natascha Manger, Hubert Klahr, Wilhelm Kley +1
Theoretical models of protoplanetary disks have shown the Vertical Shear Instability (VSI) to be a prime candidate to explain turbulence in the dead zone of the disk. However, simu…