HATS-5b: A TRANSITING HOT SATURN FROM THE HATSouth SURVEY

Journal Article · Sun Jun 01 00:00:00 EDT 2014 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/147/6/144· OSTI ID:22340232

Zhou, G.; Bayliss, D.; Schmidt, B. ^[1]; Penev, K.; Bakos, G. Á.; Hartman, J. D.; Csubry, Z. ^[2]; Jordán, A.; Brahm, R.; Rabus, M.; Suc, V.; Espinoza, N. ^[3]; Mancini, L.; Mohler, M.; Ciceri, S.; Henning, T. ^[4]; Buchhave, L. ^[5]; Béky, B.; Noyes, R. W. ^[6]; others, and

---

1. Research School of Astronomy and Astrophysics, Australian National University, Canberra, ACT 2611 (Australia)
2. Department of Astrophysical Sciences, Princeton University, NJ 08544 (United States)
3. Departamento de Astronomía y Astrofísica, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago (Chile)
4. Max Planck Institute for Astronomy, Heidelberg (Germany)
5. Niels Bohr Institute, Copenhagen University (Denmark)
6. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States)

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{sub p} ≈ 0.24 M {sub J}, radius of R{sub p} ≈ 0.91 R {sub 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 {sub ☉}, and radius of 0.87 R {sub ☉}. 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.

• OSTI ID: 22340232
• Journal Information: Astronomical Journal (New York, N.Y. Online), Vol. 147, Issue 6; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
CORRELATIONS
EQUILIBRIUM
HOST
JUPITER PLANET
MASS
METALLICITY
SATURN PLANET
SCALE HEIGHT
SPECTROSCOPY
STARS
TRANSMISSION