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Possible detection of phase changes from the non-transiting planet HD 46375b by CoRoT
Stars:planetary systems Techniques: photometric Methods: data analysis Stars: individual HD 46375
2010/11/15
Context. The present work deals with the detection of phase changes in an exoplanetary system. HD 46375 is a solar analog known to host a non-transiting Saturn-mass exoplanet with a 3.0236 day period....
Astrometric search for a planet around VB 10
astrometry – technique high angular resolution – planetary systems – stars: individual VB 10
2010/11/15
We observed VB 10 in August and September 2009 using the FORS2 camera of the VLT with the aim of measuring its astrometric motion and of probing the presence of the announced planet VB 10b. We used th...
Towards the Rosetta Stone of planet formation
Earth and Planetary Astrophysics (astro-ph.EP)
2011/1/5
Transiting exoplanets (TEPs) observed just about 10 Myrs after formation of their host systems may serve as the Rosetta Stone for planet formation theories. They would give strong constraints on sever...
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)
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 Super Lithium-Rich Red Giant Rapid Rotator G0928+73.2600: A Case for Planet Accretion?
Solar and Stellar Astrophysics (astro-ph.SR)
2011/1/5
We present the discovery of a super lithium-rich K giant star, G0928+73.2600. This red giant (T_eff = 4885 K and log g = 2.65) is a fast rotator with a projected rotational velocity of 8.4 km/s and an...