Year: 2003
Type: preprint
Abstract: We have measured radial velocities of a star, OGLE-TR-56, which shows a 1.2-day transit-like light curve found photometrically by Udalski et al.(2002ab). Here we show that the velocity changes we detect are probably induced by an object of 0.9 Jupiter masses - a very close-in gas-giant planet only 0.023 AU from its star, with a planetary radius of 1.3 Jupiter radii and a mean density of 0.5 g/cm3. At its small orbital distance, OGLE-TR-56b is hotter than any known planet, approaching 1900K, but it is stable against long-term evaporation or tidal disruption.
Source: arXiv (Cornell University)
Authors: Konacki, M., Torres, G., Jha, S., Sasselov, D.
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1511569550