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SPITZER OBSERVATIONS OF THE λ ORIONIS CLUSTER. II. DISKS AROUND SOLAR-TYPE AND LOW-MASS STARS
solar-type the low-mass stellar population
2014/12/22
We present IRAC/MIPS Spitzer Space Telescope observations of the solar-type and the low-mass stellar population of the young (~5 Myr) λ Orionis cluster. Combining optical and Two Micron All Sky Survey...
The HARPS search for southern extra-solar planets. XXXI. Magnetic activity cycles in solar-type stars: statistics and impact on precise radial velocities
Planetary systems – Stars: activity – Stars: chromospheres – Line: profi les – Techniques: radial velocities – Techniques:spectroscopic
2011/10/17
Context. Searching for extrasolar planets through radial velocity measurements relies on the stability of stellar photospheres. Aims. We aim at characterizing the statistical properties of magnetic ac...
Modeling of differential rotation in rapidly rotating solar-type stars
Modeling differential rotation rapidly rotating solar-type stars
2011/10/9
We investigate differential rotation in rapidly rotating solar-type stars by means of an axisymmetric mean field model that was previously applied to the sun. This allows us to calculate the latitudin...
Stability analysis of a tidally excited internal gravity wave near the centre of a solar-type star
planetary systems stars: rotation binaries: close hydrodynamics waves instabilities
2011/9/15
We perform a stability analysis of a tidally excited nonlinear internal gravity wave near the centre of a solar-type star in two-dimensional cylindrical geometry. The motivation is to understand the t...
Two Wide Planetary-Mass Companions to Solar-Type Stars in Upper Scorpius
brown dwarfs planetary systems Infrared planetary systems
2010/11/12
At wide separations, planetary-mass and brown dwarf companions to solar type stars occupy a
curious region of parameters space not obviously linked to binary star formation or solar-system scale plan...
WASP-32b: A transiting hot Jupiter planet orbiting a lithium-poor, solar-type star
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/28
We report the discovery of a transiting planet orbiting the star TYC 2-1155-1. The star, WASP-32, is a moderately bright (V=11.3) solar-type star (Teff=6100 +- 100K, [Fe/H] = -0.13 +- 0.10).
The mass distribution of secondaries to solar-type stars
solar-type stars mass distribution
2009/6/16
The mass distribution of secondaries to solar-type stars。
Statistical properties of solar-type close binaries。