HATS9-b and HATS10-b: TWO COMPACT HOT JUPITERS in FIELD 7 of the K2 MISSION

R. Brahm, A. Jordán, J. D. Hartman, G. Bakos, D. Bayliss, K. Penev, G. Zhou, S. Ciceri, M. Rabus, N. Espinoza, L. Mancini, M. De Val-Borro, W. Bhatti, B. Sato, T. G. Tan, Z. Csubry, L. Buchhave, T. Henning, B. Schmidt, V. SucR. W. Noyes, I. Papp, J. Lázár, P. Sári

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

We report the discovery of two transiting extrasolar planets by the HATSouth survey. HATS-9b orbits an old (10.8 ± 1.5 Gyr) V = 13.3 G dwarf star with a period days. The host star has a mass of 1.03 M⊙, radius of 1.503 R⊙, and effective temperature 5366 ± 70 K. The planetary companion has a mass of 0.837 Mj and radius of 1.065 Rj, yielding a mean density of 0.85g cm-3. HATS-10b orbits a V = 13.1 G dwarf star with a period days. The host star has a mass of 1.1 M⊙, radius of 1.11 R⊙, and effective temperature 5880 ± 120 K. The planetary companion has a mass of 0.53 and radius of 0.97 , yielding a mean density of 0.7 g cm-3. Both planets are compact in comparison with planets receiving similar irradiation from their host stars and lie in the nominal coordinates of Field 7 of K2, but only HATS-9b falls on working silicon. Future characterization of HATS-9b with the exquisite photometric precision of the Kepler telescope may provide measurements of its reflected light signature.

Original languageEnglish
Article number33
JournalAstronomical Journal
Volume150
Issue number1
DOIs
Publication statusPublished - Jul 1 2015

Keywords

  • planetary systems
  • stars: individual (HATS-9, GSC 6305-02502, HATS-10, GSC 6311-00085)
  • techniques: photometric
  • techniques: spectroscopic

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Brahm, R., Jordán, A., Hartman, J. D., Bakos, G., Bayliss, D., Penev, K., Zhou, G., Ciceri, S., Rabus, M., Espinoza, N., Mancini, L., De Val-Borro, M., Bhatti, W., Sato, B., Tan, T. G., Csubry, Z., Buchhave, L., Henning, T., Schmidt, B., ... Sári, P. (2015). HATS9-b and HATS10-b: TWO COMPACT HOT JUPITERS in FIELD 7 of the K2 MISSION. Astronomical Journal, 150(1), [33]. https://doi.org/10.1088/0004-6256/150/1/33