Results 41 to 50 of about 313,222 (342)
The Astronomical Journal, 2023 We confirm the planetary nature of two gas giants discovered by TESS to transit M dwarfs with stellar companions at wide separations. TOI-3984 A ( J = 11.93) is an M4 dwarf hosting a short-period (4.353326 ± 0.000005 days) gas giant ( M _p = 0.14 ± 0.03 ...
Caleb I. Cañas +32 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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Separating gas-giant and ice-giant planets by halting pebble accretion [PDF]
, 2014 In the Solar System giant planets come in two flavours: 'gas giants' (Jupiter and Saturn) with massive gas envelopes and 'ice giants' (Uranus and Neptune) with much thinner envelopes around their cores.
Johansen, Anders +2 more
core +1 more source
Ionization in atmospheres of brown dwarfs and extrasolar planets. IV. The effect of cosmic rays [PDF]
, 2013 Cosmic rays provide an important source for free electrons in Earth's atmosphere and also in dense interstellar regions where they produce a prevailing background ionization. We utilize a Monte Carlo cosmic ray transport model for particle energies of 10(
Helling, Christiane, Rimmer, Paul
core +2 more sources
Radio Observations of the AGN and Gas in Low Surface Brightness Galaxies [PDF]
, 2006 LSB galaxies have low metallicities, diffuse stellar disks, and massive HI disks. We have detected molecular gas in two giant LSB galaxies, UGC 6614 and F568-6. A millimeter continuum source has been detected in UGC 6614 as well.
F. Combes +5 more
core +4 more sources
Revealing giant planet interiors beneath the cloudy veil
Nature Communications, 2020 Observations from the Juno and Cassini missions provide essential constraints on the internal structures and compositions of Jupiter and Saturn, resulting in profound revisions of our understanding of the interior and atmospheres of Gas Giant planets ...
Tristan Guillot, Leigh N. Fletcher
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, 2005 We present the results of N--body simulations which examine the effect that gas giant planet migration has on the formation of terrestrial planets. The models incorporate a 0.5 Jupiter mass planet undergoing type II migration through an inner protoplanet-
Adachi +47 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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Dust-to-gas ratio resurgence in circumstellar disks due to the formation of giant planets: the case of HD 163296 [PDF]
, 2019 The amount of dust present in circumstellar disks is expected to steadily decrease with age due to the growth from micron-sized particles to planetesimals and planets. Mature circumstellar disks, however, can be observed to contain significant amounts of
Marzari, F. +3 more
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Geosciences, 2021 This article describes the results of an Arctic expedition studying the new giant gas blowout crater in the north of Western Siberia, in the central part of the Yamal Peninsula in 2020.
Vasily Bogoyavlensky +6 more
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