HATS-3b: AN INFLATED HOT JUPITER TRANSITING AN F-TYPE STAR

被引:57
作者
Bayliss, D. [1 ]
Zhou, G. [1 ]
Penev, K. [2 ,3 ]
Bakos, G. A. [2 ,3 ]
Hartman, J. D. [2 ,3 ]
Jordan, A. [4 ]
Mancini, L. [5 ]
Mohler-Fischer, M. [5 ]
Suc, V. [4 ]
Rabus, M. [4 ]
Beky, B. [3 ]
Csubry, Z. [2 ,3 ]
Buchhave, L. [6 ]
Henning, T. [5 ]
Nikolov, N. [5 ]
Csak, B. [5 ]
Brahm, R. [4 ]
Espinoza, N. [4 ]
Noyes, R. W. [3 ]
Schmidt, B. [1 ]
Conroy, P. [1 ]
Wright, D. J. [7 ,8 ]
Tinney, C. G. [7 ,8 ]
Addison, B. C. [7 ,8 ]
Sackett, P. D. [1 ]
Sasselov, D. D. [3 ]
Lazar, J. [9 ]
Papp, I. [9 ]
Sari, P. [9 ]
机构
[1] Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia
[2] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA
[3] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[4] Pontificia Univ Catolica Chile, Dept Astron & Astrofis, Santiago 7820436, Chile
[5] Max Planck Inst Astron, D-69117 Heidelberg, Germany
[6] Univ Copenhagen, Niels Bohr Inst, DK-1168 Copenhagen, Denmark
[7] Univ New S Wales, Sch Phys, Exoplanetary Sci UNSW, Sydney, NSW 2052, Australia
[8] Univ New S Wales, Australian Ctr Astrobiol, Sydney, NSW 2052, Australia
[9] Hungarian Astron Assoc, Budapest, Hungary
基金
美国国家科学基金会; 澳大利亚研究理事会;
关键词
planetary systems; stars:; individual; (HATS-3; GSC; 6926-00454); techniques: photometric; techniques: spectroscopic; SOUTHERN-HEMISPHERE; RADIAL-VELOCITIES; PLANETARY SYSTEM; SURFACE-GRAVITY; FIELD; PHOTOMETRY; STELLAR; KEPLER; SPECTROGRAPH; OBLIQUITIES;
D O I
10.1088/0004-6256/146/5/113
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 M-p = 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 (nu sin 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).
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页数:11
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