HATS-5b: A transiting hot saturn from the HATsouth survey
The Astronomical Journal, 2014•iopscience.iop.org
We report the discovery of HATS-5b, a transiting hot Saturn orbiting a G-type star, by the
HATSouth survey. HATS-5b has a mass of M p≈ 0.24 MJ, radius of R p≈ 0.91 RJ, and
transits its host star with a period of P≈ 4.7634 days. The radius of HATS-5b is consistent
with both theoretical and empirical models. The host star has a V-band magnitude of 12.6,
mass of 0.94 M☉, and radius of 0.87 R☉. The relatively high scale height of HATS-5b and
the bright, photometrically quiet host star make this planet a favorable target for future …
HATSouth survey. HATS-5b has a mass of M p≈ 0.24 MJ, radius of R p≈ 0.91 RJ, and
transits its host star with a period of P≈ 4.7634 days. The radius of HATS-5b is consistent
with both theoretical and empirical models. The host star has a V-band magnitude of 12.6,
mass of 0.94 M☉, and radius of 0.87 R☉. The relatively high scale height of HATS-5b and
the bright, photometrically quiet host star make this planet a favorable target for future …
Abstract
We report the discovery of HATS-5b, a transiting hot Saturn orbiting a G-type star, by the HATSouth survey. HATS-5b has a mass of M p≈ 0.24 M J, radius of R p≈ 0.91 R J, and transits its host star with a period of P≈ 4.7634 days. The radius of HATS-5b is consistent with both theoretical and empirical models. The host star has a V-band magnitude of 12.6, mass of 0.94 M☉, and radius of 0.87 R☉. The relatively high scale height of HATS-5b and the bright, photometrically quiet host star make this planet a favorable target for future transmission spectroscopy follow-up observations. We reexamine the correlations in radius, equilibrium temperature, and metallicity of the close-in gas giants and find hot Jupiter-mass planets to exhibit the strongest dependence between radius and equilibrium temperature. We find no significant dependence in radius and metallicity for the close-in gas giant population.
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