Hats-3b: An inflated hot jupiter transiting an F-type star*

D. Bayliss, G. Zhou, K. Penev, G. Á Bakos, J. D. Hartman, A. Jordán, L. Mancini, M. Mohler-Fischer, V. Suc, M. Rabus, B. Béky, Z. Csubry, L. Buchhave, T. Henning, N. Nikolov, B. Csák, R. Brahm, N. Espinoza, R. W. Noyes, B. SchmidtP. Conroy, D. J. Wright, C. G. Tinney, B. C. Addison, P. D. Sackett, D. D. Sasselov, J. Lázár, I. Papp, P. Sári

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

We report the discovery by the HATSouth survey of HATS-3b, a transiting extrasolar planet orbiting a V = 12.4 F dwarf star. HATS-3b has a period of P = 3.5479 days, mass of Mp = 1.07 M J, and radius of R p = 1.38 R J. Given the radius of the planet, the brightness of the host star, and the stellar rotational velocity (vsin i = 9.0 km s-1), this system will make an interesting target for future observations to measure the Rossiter-McLaughlin effect and determine its spin-orbit alignment. We detail the low-/medium-resolution reconnaissance spectroscopy that we are now using to deal with large numbers of transiting planet candidates produced by the HATSouth survey. We show that this important step in discovering planets produces log g and T eff parameters at a precision suitable for efficient candidate vetting, as well as efficiently identifying stellar mass eclipsing binaries with radial velocity semi-amplitudes as low as 1 km s-1.

Original languageEnglish
Article number113
JournalAstronomical Journal
Volume146
Issue number5
DOIs
Publication statusPublished - Nov 1 2013

Keywords

  • planetary systems
  • stars: individual (HATS-3, GSC 6926?00454)
  • techniques: photometric
  • techniques: spectroscopic

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Bayliss, D., Zhou, G., Penev, K., Bakos, G. Á., Hartman, J. D., Jordán, A., Mancini, L., Mohler-Fischer, M., Suc, V., Rabus, M., Béky, B., Csubry, Z., Buchhave, L., Henning, T., Nikolov, N., Csák, B., Brahm, R., Espinoza, N., Noyes, R. W., ... Sári, P. (2013). Hats-3b: An inflated hot jupiter transiting an F-type star*. Astronomical Journal, 146(5), [113]. https://doi.org/10.1088/0004-6256/146/5/113