Implications of the TTV-detection of close-in terrestrial planets around M stars for their origin and dynamical evolution [PDF]
It has been shown that an Earth-size planet or a super-Earth, in resonance with a transiting Jupiter-like body around an M star, can create detectable TTV signals (Kirste & Haghighipour, 2011).
Rastegar S., Haghighipour N.
doaj +4 more sources
Takeout and Delivery: Erasing the Dusty Signature of Late-stage Terrestrial Planet Formation [PDF]
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
doaj +2 more sources
On the formation of terrestrial planets in hot-Jupiter systems [PDF]
We present a series of calculations aimed at examining how an inner system of planetesimals/protoplanets, undergoing terrestrial planet formation, evolves under the influence of a giant planet undergoing inward type II migration through the region ...
Fogg, Martyn J., Nelson, Richard P.
core +4 more sources
Terrestrial planet and asteroid belt formation by Jupiter–Saturn chaotic excitation [PDF]
The terrestrial planets formed by accretion of asteroid-like objects within the inner solar system’s protoplanetary disk. Previous works have found that forming a small-mass Mars requires the disk to contain little mass beyond ~ 1.5 au (i.e., the disk ...
Patryk Sofia Lykawka, Takashi Ito
doaj +2 more sources
Terrestrial Planet Formation in Extra-Solar Planetary Systems [PDF]
Terrestrial planets form in a series of dynamical steps from the solid component of circumstellar disks. First, km-sized planetesimals form likely via a combination of sticky collisions, turbulent concentration of solids, and gravitational collapse from ...
Abe+10 more
core +2 more sources
On the Survival of Short-Period Terrestrial Planets [PDF]
The currently feasible method of detection of Earth-mass planets is transit photometry, with detection probability decreasing with a planet's distance from the star.
Lin, D. N. C., Mardling, Rosemary A.
core +2 more sources
Stability of Terrestrial Planets in the Habitable Zone of Gl 777 A, HD 72659, Gl 614, 47 Uma and HD 4208 [PDF]
We have undertaken a thorough dynamical investigation of five extrasolar planetary systems using extensive numerical experiments. The systems Gl 777 A, HD 72659, Gl 614, 47 Uma and HD 4208 were examined concerning the question of whether they could host ...
A. Khramova+78 more
core +2 more sources
Predicting Planets in Known Extra-Solar Planetary Systems III: Forming Terrestrial Planets [PDF]
Recent results have shown that many of the known extrasolar planetary systems contain regions which are stable for both Earth-mass and Saturn-mass planets. Here we simulate the formation of terrestrial planets in four planetary systems -- 55 Cancri, HD 38529, HD 37124, and HD 74156 -- under the assumption that these systems of giant planets are ...
Sean N. Raymond+2 more
arxiv +3 more sources
Astrometric Detection of Terrestrial Planets in the Habitable Zones of Nearby Stars with SIM PlanetQuest [PDF]
SIM PlanetQuest (Space Interferometry Mission) is a space-borne Michelson interferometer for precision stellar astrometry, with a nine meter baseline, currently slated for launch in 2015.
Angelle Tanner+5 more
core +2 more sources
Terrestrial Planet Formation Surrounding Close Binary Stars [PDF]
Disk material has been observed around both components of some young close binary star systems. It has been shown that if planets form at the right places within such disks, they can remain dynamically stable for very long times.
Lissauer, Jack J., Quintana, Elisa V.
core +5 more sources