Astronomy and Astrophysics, volume 547A, 61-61 (2012/11-1)
WASP-78b and WASP-79b: two highly-bloated hot Jupiter-mass exoplanets orbiting F-type stars in Eridanus.
SMALLEY B., ANDERSON D.R., COLLIER-CAMERON A., DOYLE A.P., FUMEL A., GILLON M., HELLIER C., JEHIN E., LENDL M., MAXTED P.F.L., PEPE F., POLLACCO D., QUELOZ D., SEGRANSAN D., SMITH A.M.S., SOUTHWORTH J., TRIAUD A.H.M.J., UDRY S. and WEST R.G.
Abstract (from CDS):
We report the discovery of WASP-78b and WASP-79b, two highly-bloated Jupiter-mass exoplanets orbiting F-type host stars. WASP-78b orbits its V=12.0 host star (TYC 5889-271-1) every 2.175 days and WASP-79b orbits its V=10.1 host star (CD-30 1812) every 3.662 days. Planetary parameters have been determined using a simultaneous fit to WASP and TRAPPIST transit photometry and CORALIE radial-velocity measurements. For WASP-78b a planetary mass of 0.89±0.08MJup and a radius of 1.70±0.11 RJup is found. The planetary equilibrium temperature of TP = 2350 ±80 K for WASP-78b makes it one of the hottest of the currently known exoplanets. WASP-79b its found to have a planetary mass of 0.90±0.08MJup, but with a somewhat uncertain radius due to lack of sufficient TRAPPIST photometry. The planetary radius is at least 1.70±0.11RJup, but could be as large as 2.09±0.14RJup, which would make WASP-79b the largest known exoplanet.
planets and satellites: general - stars: individual: WASP-78 - stars: individual: WASP-79 - techniques: spectroscopic - techniques: radial velocities - techniques: photometric
VizieR on-line data:
<Available at CDS (J/A+A/547/A61): rv.dat phot.dat>
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