Results 31 to 40 of about 90,567 (226)
TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain
The Astronomical Journal, 2023 Convergent disk migration has long been suspected to be responsible for forming planetary systems with a chain of mean-motion resonances (MMRs). Dynamical evolution over time could disrupt the delicate resonant configuration. We present TOI-1136, a 700 ±
Fei Dai +62 more
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Migration-Induced Architectures of Planetary Systems [PDF]
Origins of Life and Evolution of Biospheres, 2012 The recent increase in number of known multi-planet systems gives a unique opportunity to study the processes responsible for planetary formation and evolution. Special attention is given to the occurrence of mean-motion resonances, because they carry important information about the history of the planetary systems. At the early stages of the evolution,
Szuszkiewicz, Ewa, Podlewska-Gaca, Edyta
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PLANETARY MIGRATION AND ECCENTRICITY AND INCLINATION RESONANCES IN EXTRASOLAR PLANETARY SYSTEMS [PDF]
The Astrophysical Journal, 2009 25 pages, including 12 figures; accepted for publication in ...
Lee, MH, Thommes, EW
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Quantifying the Impact of the Dust Torque on the Migration of Low-mass Planets
The Astrophysical Journal, 2023 Disk solids are critical in many planet formation processes; however, their effect on planet migration remains largely unexplored. Here we assess this important issue for the first time by building on the systematic measurements of dust torques on an ...
Octavio M. Guilera +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
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Application of recent results on the orbital migration of low mass planets: convergence zones [PDF]
, 2010 Previous models of the combined growth and migration of protoplanets needed large ad hoc reduction factors for the type I migration rate as found in the isothermal approximation.
Alibert, Y. +5 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.
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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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Antropologia Portuguesa, 2023 This article focuses on the critical importance of knowledge, a key trait of human culture, in multi-species environmental coadaptation and niche co-construction in human evolutionary history.
Shaozeng Zhang, Zhuo Chen
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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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