Publications (7)
Palomar 13: a velocity dispersion inflated by binaries ?
A. Blecha, G. Meylan, P. North +1
Recently, combining radial velocities from Keck/HIRES echelle spectra with published proper motion membership probabilities, Cote et al (2002) observed a sample of 21 stars, probab…
Solar-like oscillations in Procyon A
P. Eggenberger, F. Carrier, F. Bouchy +1
The F5 subgiant Procyon A (alpha CMi, HR 2943) was observed with the Coralie fiber-fed echelle spectrograph on the 1.2-m Swiss telescope at La Silla in February 1999. The resulting…
VLT/GIRAFFE spectroscopic observations of the metal-poor blue compact dwarf galaxy SBS 0335-052E
Y. Izotov, D. Schaerer, A. Blecha +3
We present two-dimensional spectroscopy of the extremely metal-deficient blue compact dwarf (BCD) galaxy SBS 0335-052E aiming to studyphysical conditions, element abundances and ki…
WASP-5b: a dense, very-hot Jupiter transiting a 12th-mag Southern-hemisphere star
D. R. Anderson, M. Gillon, C. Hellier +28
We report the discovery of WASP-5b, a Jupiter-mass planet orbiting a 12th-mag G-type star in the Southern hemisphere. The 1.6-d orbital period places WASP-5b in the class of very-h…
Very rapid optical variability of PKS 2155-304
S. Paltani, T. J. -L. Courvoisier, A. Blecha +1
We have performed an optical observation campaign on PKS 2155-304, whose aim was to determine the variability properties of this object on very short time scales in several photome…
WASP-4b: a 12th-magnitude transiting hot-Jupiter in the Southern hemisphere
D. M. Wilson, M. Gillon, C. Hellier +29
We report the discovery of WASP-4b, a large transiting gas-giant planet with an orbital period of 1.34 days. This is the first planet to be discovered by the SuperWASP-South observ…
A planet orbiting the star Gliese 86
D. Queloz, M. Mayor, L. Weber +7
A 4MJ planet with a 15.8day orbital period has been detected from very precise radial velocity measurements with the CORALIE echelle spectrograph. A second remote and more massive…