H
Hubert Klahr
Researcher at Max Planck Society
Publications - 270
Citations - 18292
Hubert Klahr is an academic researcher from Max Planck Society. The author has contributed to research in topics: Planet & Planetesimal. The author has an hindex of 71, co-authored 259 publications receiving 16463 citations. Previous affiliations of Hubert Klahr include University of California, Santa Cruz & Space Telescope Science Institute.
Papers
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Journal ArticleDOI
Rapid planetesimal formation in turbulent circumstellar disks
Anders Johansen,Jeffrey S. Oishi,Jeffrey S. Oishi,Mordecai-Mark Mac Low,Mordecai-Mark Mac Low,Hubert Klahr,Thomas Henning,Andrew N. Youdin +7 more
TL;DR: It is reported that boulders can undergo efficient gravitational collapse in locally overdense regions in the midplane of the disk, and it is found that gravitationally bound clusters form with masses comparable to dwarf planets and containing a distribution of boulder sizes.
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A simple model for the evolution of the dust population in protoplanetary disks
TL;DR: In this paper, a simple model that follows the upper end of the dust size distribution and the evolution of the surface density profile was developed to derive simple equations that explain the global evolution and the upper limit of the grain size distribution, which can be used for further modeling or for interpreting of observational data.
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The effect of gas drag on the growth of protoplanets. Analytical expressions for the accretion of small bodies in laminar disks
Chris W. Ormel,Hubert Klahr +1 more
TL;DR: In this paper, the effects of gas drag on the impact radii and the accretion rates of these particles were investigated, and a laminar disk characterized by a smooth pressure gradient that causes particles to drift in radially.
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Turbulence in Accretion Disks: Vorticity Generation and Angular Momentum Transport via the Global Baroclinic Instability
TL;DR: In this paper, the authors present the global baroclinic instability as a source for vigorous turbulence leading to angular momentum transport in Keplerian accretion disks, and demonstrate in a global simulation that these vortices tend to form out of little background noise and to be long-lasting features.
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A comparative study of disc–planet interaction
M. de Val-Borro,Richard G. Edgar,Richard G. Edgar,Pawel Artymowicz,Pawel Artymowicz,P. Ciecielag,P. Cresswell,Gennaro D'Angelo,E. J. Delgado-Donate,G. Dirksen,Sebastien Fromang,Sebastien Fromang,A. Gawryszczak,Hubert Klahr,Wilhelm Kley,Wladimir Lyra,Frédéric Masset,Frédéric Masset,Garrelt Mellema,Richard P. Nelson,Sijme-Jan Paardekooper,Adam Peplinski,A. Pierens,Tomasz Plewa,Ken Rice,Christoph Schäfer,Roland Speith +26 more
TL;DR: In this article, numerical simulations of a disc-planet system using various grid-based and smoothed particle hydrodynamics (SPH) codes are performed for a simple setup where Jupiter and Neptune mass planets on a circular orbit open a gap in a protoplanetary disc during a few hundred orbital periods.