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Half of all exoplanet host stars are binaries(图)
binaries exoplanet host stars
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2014/9/12
Imagine living on an exoplanet with two suns. One, you orbit and the other is a very bright, nearby neighbor looming large in your sky. With this “second sun” in the sky, nightfall might be a rare eve...
A lucky imaging multiplicity study of exoplanet host stars
techniques high angular resolution binaries close HD 185269 stars individual HD 126614
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2012/2/23
To understand the influence of additional wide stellar companions on planet formation, it is necessary to determine the fraction of multiple stellar systems amongst the known extrasolar planet populat...
Effects of rotation and magnetic fields on the lithium abundance and asteroseismic properties of exoplanet-host stars
magnetic fields the lithium abundance asteroseismic properties
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2011/1/11
Aims: The effects of rotation and magnetic fields on the surface abundances of solar-type stars are studied in order to investigate whether the reported difference in lithium content of exoplanet-host...
A Spitzer IRS Study of Debris Disks Around Planet-Host Stars
Solar and Stellar Astrophysics (astro-ph.SR) Earth and Planetary Astrophysics (astro-ph.EP)
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2011/1/6
Since giant planets scatter planetesimals within a few tidal radii of their orbits, the locations of existing planetesimal belts indicate regions where giant planet formation failed in bygone protoste...
The barycentric motion of exoplanet host stars: tests of solar spin-orbit coupling
Earth and Planetary Astrophysics (astro-ph.EP)
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2010/12/24
Empirical evidence suggests a tantalising but unproven link between various indicators of solar activity and the barycentric motion of the Sun. The latter is exemplified by transitions between regular...
Hot Jupiters` Tidal Interaction with their Host Stars
Hot Jupiters Tidal Interaction Host Stars
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2009/6/16
Hot Jupiters` Tidal Interaction with their Host Stars。