TY - JOUR
T1 - HATS-6b
T2 - A warm saturn transiting an early m dwarf star, and a set of empirical relations for characterizing k and m dwarf planet hosts
AU - Hartman, J. D.
AU - Bayliss, D.
AU - Brahm, R.
AU - Bakos, G.
AU - Mancini, L.
AU - Jordàn, A.
AU - Penev, K.
AU - Rabus, M.
AU - Zhou, G.
AU - Butler, R. P.
AU - Espinoza, N.
AU - De Val-Borro, M.
AU - Bhatti, W.
AU - Csubry, Z.
AU - Ciceri, S.
AU - Henning, T.
AU - Schmidt, B.
AU - Arriagada, P.
AU - Shectman, S.
AU - Crane, J.
AU - Thompson, I.
AU - Suc, V.
AU - Csàk, B.
AU - Tan, T. G.
AU - Noyes, R. W.
AU - Làzàr, J.
AU - Papp, I.
AU - Sàri, P.
N1 - Publisher Copyright:
© 2015. The American Astronomical Society. All rights reserved..
PY - 2015/5/1
Y1 - 2015/5/1
N2 - We report the discovery by the HATSouth survey of HATS-6b, an extrasolar planet transiting a V = 15.2 mag, i = 13.7 mag M1V star with a mass of 0.57 and a radius of 0.57 . HATS-6b has a period of P = 3.3253 d, mass of = 0.32 , radius of = 1.00 , and zero-albedo equilibrium temperature of = 712.8 ±5.1 K. HATS-6 is one of the lowest mass stars known to host a close-in gas giant planet, and its transits are among the deepest of any known transiting planet system. We discuss the follow-up opportunities afforded by this system, noting that despite the faintness of the host star, it is expected to have the highest K-band S/N transmission spectrum among known gas giant planets with K. In order to characterize the star we present a new set of empirical relations between the density, radius, mass, bolometric magnitude, and V-, J-, H- and K-band bolometric corrections for main sequence stars with , or spectral types later than K5. These relations are calibrated using eclipsing binary components as well as members of resolved binary systems. We account for intrinsic scatter in the relations in a self-consistent manner. We show that from the transit-based stellar density alone it is possible to measure the mass and radius of a ∼0.6 star to ∼7 and ∼2% precision, respectively. Incorporating additional information, such as the color, or an absolute magnitude, allows the precision to be improved by up to a factor of two.
AB - We report the discovery by the HATSouth survey of HATS-6b, an extrasolar planet transiting a V = 15.2 mag, i = 13.7 mag M1V star with a mass of 0.57 and a radius of 0.57 . HATS-6b has a period of P = 3.3253 d, mass of = 0.32 , radius of = 1.00 , and zero-albedo equilibrium temperature of = 712.8 ±5.1 K. HATS-6 is one of the lowest mass stars known to host a close-in gas giant planet, and its transits are among the deepest of any known transiting planet system. We discuss the follow-up opportunities afforded by this system, noting that despite the faintness of the host star, it is expected to have the highest K-band S/N transmission spectrum among known gas giant planets with K. In order to characterize the star we present a new set of empirical relations between the density, radius, mass, bolometric magnitude, and V-, J-, H- and K-band bolometric corrections for main sequence stars with , or spectral types later than K5. These relations are calibrated using eclipsing binary components as well as members of resolved binary systems. We account for intrinsic scatter in the relations in a self-consistent manner. We show that from the transit-based stellar density alone it is possible to measure the mass and radius of a ∼0.6 star to ∼7 and ∼2% precision, respectively. Incorporating additional information, such as the color, or an absolute magnitude, allows the precision to be improved by up to a factor of two.
KW - machine-readable and VO tables
KW - planetary systems
KW - stars: individual (HATS-6)
KW - techniques: photometric
KW - techniques: spectroscopic Supporting material
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UR - http://www.scopus.com/inward/citedby.url?scp=84946154079&partnerID=8YFLogxK
U2 - 10.1088/0004-6256/149/5/166
DO - 10.1088/0004-6256/149/5/166
M3 - Article
AN - SCOPUS:84946154079
SN - 0004-6256
VL - 149
JO - Astronomical Journal
JF - Astronomical Journal
IS - 5
M1 - 166
ER -