Results 11 to 20 of about 224,941 (332)

Constraining planet formation around 6M⊙-8M⊙ stars [PDF]

open access: yes, 2020
Identifying planets around O-type and B-type stars is inherently difficult; the most massive known planet host has a mass of only about 3M⊙. However, planetary systems which survive the transformation of their host stars into white dwarfs can be detected
Gaensicke, Boris T.   +6 more
core   +2 more sources

Near Infrared Surface Properties of the Two Intrinsically Brightest Minor Planets (90377) Sedna and (90482) Orcus [PDF]

open access: yes, 2005
We present low resolution K band spectra taken at the Gemini 8 meter telescope of (90377) Sedna and (90482) Orcus (provisional designations 2003 VB12 and 2004 DW, respectively), currently the two minor planets with the greatest absolute magnitudes (i.e ...
Brown, Michael E.   +3 more
core   +3 more sources

The dynamical history of the evaporating or disrupted ice giant planet around white dwarf WD J0914+1914 [PDF]

open access: yes, 2020
Robust evidence of an ice giant planet shedding its atmosphere around the white dwarf WD J0914+1914 represents a milestone in exoplanetary science, allowing us to finally supplement our knowledge of white dwarf metal pollution, debris discs and minor ...
Fuller, Jim, Veras, Dimitri
core   +3 more sources

Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems [PDF]

open access: yes, 2009
We present the latest velocities for 10 multi-planet systems, including a re-analysis of archival Keck and Lick data, resulting in improved velocities that supersede our previously published measurements.
Barnes   +56 more
core   +2 more sources

Oligarchic planetesimal accretion and giant planet formation II [PDF]

open access: yes, 2009
The equation of state calculated by Saumon and collaborators has been adopted in most core-accretion simulations of giant-planet formation performed to date.
A. Brunini   +21 more
core   +4 more sources

Rotary-Percussive Ultrasonic Drill: An Effective Subsurface Penetrating Tool for Minor Planet Exploration

open access: yesIEEE Access, 2018
Compared with conventional drill, an ultrasonic drill can break into rocks under lower weight on bit and lower power, which is more suitable to sample in low gravity environment for deep-space exploration. However, the ultrasonic drill cannot remove rock
Yinchao Wang   +5 more
doaj   +1 more source

Two drastically different climate states on an Earth-like terra-planet [PDF]

open access: yesEarth System Dynamics, 2018
We study an Earth-like terra-planet (water-limited terrestrial planet) with an overland recycling mechanism bringing fresh water back from the high latitudes to the low latitudes.
S. Kalidindi   +5 more
doaj   +1 more source

No evidence of a hot Jupiter around HD 188753 A [PDF]

open access: yes, 2007
The discovery of a short-period giant planet (a hot Jupiter) around the primary component of the triple star system HD 188753 has often been considered as an important observational evidence and as a serious challenge to planet-formation theories ...
A. Eggenberger   +36 more
core   +3 more sources

Early Planet Formation in Embedded Disks (eDisk). III. A First High-resolution View of Submillimeter Continuum and Molecular Line Emission toward the Class 0 Protostar L1527 IRS

open access: yesThe Astrophysical Journal, 2023
Studying the physical and chemical conditions of young embedded disks is crucial to constrain the initial conditions for planet formation. Here we present Atacama Large Millimeter/submillimeter Array observations of dust continuum at ∼0.″06 (8 au ...
Merel L. R. van ’t Hoff   +27 more
doaj   +1 more source

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