Results 11 to 20 of about 123,043 (207)
Evolution of a Water-rich Atmosphere Formed by a Giant Impact on an Earth-sized Planet
The Astrophysical Journal, 2023 The atmosphere of a terrestrial planet that is replenished with secondary gases should have accumulated hydrogen-rich gas from its protoplanetary disk.
Kenji Kurosaki +3 more
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The Role of Multiplicity in Disk Evolution and Planet Formation [PDF]
, 2011 The past decade has seen a revolution in our understanding of protoplanetary disk evolution and planet formation in single star systems. However, the majority of solar-type stars form in binary systems, so the impact of binary companions on ...
Hillenbrand, Lynne A. +3 more
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Breaking Degeneracies in Formation Histories by Measuring Refractory Content in Gas Giants
The Astrophysical Journal, 2023 Relating planet formation to atmospheric composition has been a long-standing goal of the planetary science community. So far, most modeling studies have focused on predicting the enrichment of heavy elements and the C/O ratio in giant planet atmospheres.
Yayaati Chachan +3 more
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On the Radii of Close-in Giant Planets [PDF]
, 2000 The recent discovery that the close-in extrasolar giant planet, HD209458b, transits its star has provided a first-of-its-kind measurement of the planet's radius and mass.
A. Burrows +8 more
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The Astrophysical Journal, 2023 Thanks to “dust-to-planet” simulations (DTPSs), which treat the collisional evolution directly from dust to giant-planet cores in a protoplanetary disk, we showed that giant-planet cores are formed in ≲10 au in several 10 ^5 yr, because porous pebbles ...
Hiroshi Kobayashi, Hidekazu Tanaka
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On the Terminal Rotation Rates of Giant Planets [PDF]
, 2018 Within the general framework of core-nucleated accretion theory of giant planet formation, the conglomeration of massive gaseous envelopes is facilitated by a transient period of rapid accumulation of nebular material.
Batygin, Konstantin
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Takeout and Delivery: Erasing the Dusty Signature of Late-stage Terrestrial Planet Formation
The Astrophysical Journal, 2023 The formation of planets like Earth is expected to conclude with a series of late-stage giant impacts that generate warm dusty debris, the most anticipated visible signpost of terrestrial planet formation in progress.
Joan R. Najita, Scott J. Kenyon
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A Planetary Companion to the Nearby M4 Dwarf, Gliese 876 [PDF]
, 1998 Doppler measurements of the M4 dwarf star, Gliese 876, taken at both Lick and Keck Observatory reveal periodic, Keplerian velocity variations with a period of 61 days.
Debra Fischer +6 more
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A Survey for Massive Giant Planets in Debris Disks with Evacuated Inner Cavities [PDF]
, 2007 The commonality of collisionally replenished debris around main sequence stars suggests that minor bodies are frequent around Sun-like stars. Whether or not debris disks in general are accompanied by planets is yet unknown, but debris disks with large ...
A. Moro‐Martin +13 more
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Giant Planet Lightning in Nonideal Gases
The Planetary Science Journal, 2023 Lightning has been directly observed or inferred on all giant planets, generally accepted to be occurring in their water clouds. However, much as Earth has both cloud–cloud and cloud–ground lightning, this does not mean all flashes occur in a narrow ...
Yury S. Aglyamov +6 more
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