A transiting extrasolar giant planet around the star OGLE-TR-113

Details A transiting extrasolar giant planet around the star OGLE-TR-113 A transiting extrasolar giant planet around the star OGLE-TR-113

2004-04-27

arxiv.org/abs/astro-ph/0404541v1

Astrophys.J. 609 (2004) L37-L40

Astronomy and Astrophysics

Astrophysics

Submitted to ApJL, additional color figures and data files at http://www.gps.caltech.edu/~maciej/TR-113/OGLE-TR-113b.html

Scientific paper

10.1086/422600

We report the independent discovery of a new extrasolar transiting planet around OGLE-TR-113, a candidate star from the Optical Gravitational Lensing Experiment. Small radial-velocity variations have been detected based on observations conducted with the MIKE spectrograph on the Magellan I (Baade) telescope at the Las Campanas Observatory (Chile) during 2003. We have also carried out a light-curve analysis incorporating new photometry and realistic physical parameters for the star. OGLE-TR-113b has an orbital period of only 1.43 days, a mass of 1.08 +/- 0.28 M_Jup, and a radius of 1.09 +/- 0.10 R_Jup. Similar parameters have been obtained very recently in an independent study by Bouchy et al., from observations taken a year later. The orbital period of OGLE-TR-113b, and also that of the previously announced planet OGLE-TR-56b (P_orb = 1.21 days) -- the first two found photometrically -- are much shorter than the apparent cutoff of close-in giant planets at 3-4-day periods found from high-precision radial velocities surveys. Along with a third case reported by Bouchy et al. (OGLE-TR-132b, P_orb = 1.69 days), these objects appear to form a new class of ``very hot Jupiters'' that pose very interesting questions for theoretical study.

Affiliated with

Also associated with

No associations

Rating

A transiting extrasolar giant planet around the star OGLE-TR-113 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A transiting extrasolar giant planet around the star OGLE-TR-113, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A transiting extrasolar giant planet around the star OGLE-TR-113 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-510533