Results 31 to 40 of about 8,504 (191)
The capture of Trojan asteroids by the giant planets during planetary migration [PDF]
, 2010 Of the four giant planets in the Solar system, only Jupiter and Neptune are currently known to possess swarms of Trojan asteroids – small objects that experience a 1:1 mean motion resonance with their host planet.
Horner, J. +3 more
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A Role of Proto-Accretion Disk Heating Proto-Planets to Evaporation [PDF]
Journal of Astronomy and Space Sciences, 2002 We study a role of the proto-accretion disk during the formation of the planetary system, which is motivated with recent X-ray observations. There is an observational correlation of the mass of extrasolar planets with their orbital period, which also ...
Heon-Young Chang, Chul-Sung Choi
doaj +1 more source
Metallicity, planetary formation and migration [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 Recent observations show a clear correlation between the probability of hosting a planet and the metallicity of the parent star. Since radial velocity surveys are biased, however, towards detecting planets with short orbital periods, the probability-metallicity correlation could merely reflect a dependence of migration rates on metallicity.
Livio, M., Pringle, J. E.
openaire +2 more sources
The Discovery of a Planetary Companion Interior to Hot Jupiter WASP-132 b [PDF]
, 2023 Hot Jupiters are generally observed to lack close planetary companions, a trend that has been interpreted as evidence for high-eccentricity migration. We present the discovery and validation of WASP-132 c (TOI-822.02), a 1.85 ± 0.10 R ⊕
Lissauer, Jack J +23 more
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Good Combination of the Rossiter-McLaughlin Measurements and Direct Imaging Observations
EPJ Web of Conferences, 2011 We introduce a novel methodology to distinguish planetary migration mechanisms by a combination of Rossiter-McLaughlin measurements and direct imaging observations.
Narita N.
doaj +1 more source
The New Generation Planetary Population Synthesis (NGPPS) [PDF]
, 2021 Context. Planetary formation and evolution is a combination of multiple interlinked processes. Constraining the mechanisms observationally requires statistical comparison to a large diversity of planetary systems. Aims.
Burn, Remo +11 more
core +1 more source
On Wave Interference in Planet Migration: Dead Zone Torques Modified by Active Zone Forcing
The Astrophysical Journal, 2023 We investigate planetary migration in the dead zone of a protoplanetary disk where there is a set of spiral waves propagating inward due to the turbulence in the active zone and the Rossby wave instability, which occurs at the transition between the dead
Raúl O. Chametla +3 more
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Migrating microbes and planetary protection
Trends in Microbiology, 2009 Since the dawn of the space age, humans have wrestled with concerns about planetary cross-contamination. Spacecraft launched from Earth can transport hitchhiker microbes to new worlds on both robotic and crewed vehicles. As plans proceed for future life detection and human exploration missions, planetary protection considerations are again uppermost on
Department of Microbiology +4 more
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Preventing extinction in an age of species migration and planetary change [PDF]
Conservation Biology, 2023 Abstract International and national conservation policies almost exclusively focus on conserving species in their historic native ranges, thus excluding species that have dispersed on their own accord or have been introduced by people. Given that many of these ‘migrant’ species are threatened in their native ranges, conservation goals ...
Lundgren, Erick J. +5 more
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Planetary population synthesis and the emergence of four classes of planetary system architectures [PDF]
, 2023 Planetary population synthesis is a helpful tool to understand the physics of planetary system formation. It builds on a global model, meaning that the model has to include a multitude of physical processes. The outcome can be statistically compared with
Burn, Remo +5 more
core +1 more source