Results 31 to 40 of about 123,043 (207)
The Astronomical JournalWe present statistical results from the Epoch of Giant Planet Migration RV planet search program. This survey was designed to measure the occurrence rate of giant planets interior to the water ice line of young Sun-like stars, compare this to the ...
Quang H. Tran +10 more
doaj +1 more source
Giant Planets Can Act As Stabilizing Agents on Debris Disks
, 2017 We have explored the evolution of a cold debris disk under the gravitational influence of dwarf planet sized objects (DPs), both in the presence and absence of an interior giant planet.
Muñoz-Gutiérrez, Marco A. +2 more
core +1 more source
Secular Resonances in Planet-hosting Binary Stars. II. Application to Terrestrial Planet Formation
The Astrophysical JournalContinuing our study of the effects of secular resonances on the formation of terrestrial planets in moderately close binary stars, we present here the results of an extensive numerical simulations of the formation of these objects.
Nader Haghighipour, Michael Andrews
doaj +1 more source
Can planetary instability explain the Kepler dichotomy?
, 2012 The planet candidates discovered by the Kepler mission provide a rich sample to constrain the architectures and relative inclinations of planetary systems within approximately 0.5 AU of their host stars.
Anders Johansen +30 more
core +1 more source
JWST Directly Images Giant Planet Candidates Around Two Metal-polluted White Dwarf Stars
The Astrophysical Journal LettersWe report the discovery of two directly imaged, giant planet candidates orbiting the metal-rich, hydrogen atmosphere white dwarfs WD 1202−232 and WD 2105−82. JWST’s Mid-Infrared Instrument (MIRI) data on these two stars show a nearby resolved source at a
Susan E. Mullally +11 more
doaj +1 more source
The Survival Rate of Ejected Terrestrial Planets with Moons [PDF]
, 2007 During planet formation, a gas giant will interact with smaller protoplanets that stray within its sphere of gravitational influence. We investigate the outcome of interactions between gas giants and terrestrial-sized protoplanets with lunar-sized ...
Cassen P. +3 more
core +1 more source
The Astrophysical Journal LettersGiant planet atmospheres are thought to reflect the gas phase composition of the disk when and where they formed. However, these atmospheres may also be polluted via solid accretion or ice sublimation in the disk.
Eric R. Van Clepper +3 more
doaj +1 more source
Masses and Densities of Dwarf Planet Satellites Measured with ALMA
The Planetary Science Journal, 2023 We have used the Atacama Large Millimeter/submillimeter Array to measure precise absolute astrometric positions and detect the astrometric wobble of dwarf planet Orcus and its satellite Vanth over a complete orbit.
Michael E. Brown, Bryan J. Butler
doaj +1 more source
Formation of exoplanetary satellites by pull-down capture. [PDF]
, 2019 The large size and wide orbit of the recently announced exomoon candidate Kepler-1625b-i are hard to explain within traditional theories of satellite formation.
Hansen, Bradley MS
core +1 more source
The Gap–Giant Association: Are Planets Hiding in the Gaps?
The Astrophysical JournalA handful of stars are known to host both an inner system of multiple transiting planets and an outer giant planet. These systems all feature a prominent gap between the orbits of two of the transiting planets, distinguishing them from typical ...
Caleb Lammers, Joshua N. Winn
doaj +1 more source