Results 11 to 20 of about 24,968,366 (387)

Saving Planetary Systems: Dead Zones and Planetary Migration [PDF]

open access: yesThe Astrophysical Journal, 2007
The tidal interaction between a disk and a planet leads to the planet's migration. A long-standing question regarding this mechanism is how to stop the migration before planets plunge into their central stars. In this paper, we propose a new, simple mechanism to significantly slow down planet migration, and test the possibility by using a hybrid ...
Matsumura, Soko   +2 more
openaire   +6 more sources

Planetary mass function and planetary systems [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2010
7 pages, MNRAS ...
Agresti   +42 more
core   +5 more sources

The signatures of the parental cluster on field planetary systems [PDF]

open access: yes, 2017
Due to the high stellar densities in young clusters, planetary systems formed in these environments are likely to have experienced perturbations from encounters with other stars.
Maxwell X. Cai, S. Zwart, A. V. Elteren
semanticscholar   +3 more sources

The fragility of planetary systems [PDF]

open access: yes, 2015
We specify the range to which perturbations penetrate a planetesimal system. Such perturbations can originate from massive planets or from encounters with other stars.
S. Zwart, L. Jílková
semanticscholar   +5 more sources

The dynamical fate of planetary systems in young star clusters [PDF]

open access: yes, 2015
We carry out N-body simulations to examine the effects of dynamical interactions on planetary systems in young open star clusters. We explore how the planetary populations in these star clusters evolve, and how this evolution depends on the initial ...
Xiao-Peng Zheng   +2 more
semanticscholar   +3 more sources

AMD-stability and the classification of planetary systems [PDF]

open access: yes, 2017
We present here in full detail the evolution of the angular momentum deficit (AMD) during collisions as it was described in (Laskar, PRL,2000). Since then, the AMD has been revealed to be a key parameter for the understanding of the outcome of planetary ...
J. Laskar, A. Petit
semanticscholar   +4 more sources

Two Young Planetary Systems around Field Stars with Ages between 20 and 320 Myr from TESS [PDF]

open access: yesAstronomical Journal, 2020
Planets around young stars trace the early evolution of planetary systems. We report the discovery and validation of two planetary systems with ages ≲300 Myr from observations by the Transiting Exoplanet Survey Satellite (TESS).
G. Zhou   +48 more
semanticscholar   +1 more source

Simultaneous electrical resistivity and elastic wave velocity measurements during triaxial deformation of granite under brine-saturated conditions

open access: yesEarth, Planets and Space, 2023
We report the first experiments, where simultaneous electrical resistivity and elastic wave velocity measurements are acquired during the triaxial deformation of granite under brine-saturated conditions.
Ikuo Katayama   +4 more
doaj   +1 more source

The protoplanetary disc HD 163296 as observed by ALMA

open access: yesVietnam Journal of Science, Technology and Engineering, 2022
HD 163296 is one of the few protoplanetary discs displaying rings in the dust component. The present work uses ALMA observations of the 0.9 mm continuum emission, which have significantly better spatial resolution (~8 au) than previously available, to ...
P.N. Diep   +6 more
doaj   +1 more source

Planetary Systems Biology [PDF]

open access: yesMolecular Cell, 2005
Combining paleogenetics, protein engineering, synthetic biology, and metabolic modeling, a planetary biology perspective is brought to bear on adaptive evolutionary events in ancient bacteria.
Department of Chemistry, University of Florida, Gainesville, FL 32611 USA ( host institution )   +2 more
openaire   +3 more sources

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