TY - JOUR
T1 - HATS-11B and HATS-12B
T2 - TWO TRANSITING HOT JUPITERS ORBITING SUBSOLAR METALLICITY STARS SELECTED for the K2 CAMPAIGN 7
AU - Rabus, M.
AU - Jordán, A.
AU - Hartman, J. D.
AU - Bakos, G.
AU - Espinoza, N.
AU - Brahm, R.
AU - Penev, K.
AU - Ciceri, S.
AU - Zhou, G.
AU - Bayliss, D.
AU - Mancini, L.
AU - Bhatti, W.
AU - De Val-Borro, M.
AU - Csbury, Z.
AU - Sato, B.
AU - Tan, T. G.
AU - Henning, T.
AU - Schmidt, B.
AU - Bento, J.
AU - Suc, V.
AU - Noyes, R.
AU - Lázár, J.
AU - Papp, I.
AU - Sári, P.
N1 - Publisher Copyright:
© 2016. The American Astronomical Society. All rights reserved.
PY - 2016/10
Y1 - 2016/10
N2 - We report the discovery of two transiting extrasolar planets from the HATSouth survey. HATS-11, a V = 14.1 G0-star shows a periodic mmag dip in its light curve every 3.6192 days and a radial velocity variation consistent with a Keplerian orbit. HATS-11 has a mass of 1.0000 0.060 M⊙, a radius of 1.444 ± 0.057 R⊙ and an effective temperature of 6060 ± 150 K, while its companion is a 0.85 ± 0.12 MJ, 1.510 ± 0.078 RJ planet in a circular orbit. HATS-12 shows a periodic 5.1 mmag flux decrease every 3.1428 days and Keplerian RV variations around a V = 12.8 F-star. HATS-12 has a mass of 1.489 ± 0.071 M⊙, a radius of 2.21 ± 0.21 R⊙, and an effective temperature of 6408 ± 75 K. For HATS-12b, our measurements indicate that this is a 2.38 ± 0.11 MJ, 1.35 ± 0.17 RJ planet in a circular orbit. Both host stars show subsolar metallicities of -0.390 ± 0.060 dex and dex, respectively, and are (slightly) evolved stars. In fact, HATS-11 is among the most metal-poor and, HATS-12, with a log g∗ of 3.923 0.0065, is among the most evolved stars hosting a hot-Jupiter planet. Importantly, HATS-11 and HATS-12 have been observed in long cadence by Kepler as part of K2 campaign 7 (EPIC216414930 and EPIC218131080 respectively).
AB - We report the discovery of two transiting extrasolar planets from the HATSouth survey. HATS-11, a V = 14.1 G0-star shows a periodic mmag dip in its light curve every 3.6192 days and a radial velocity variation consistent with a Keplerian orbit. HATS-11 has a mass of 1.0000 0.060 M⊙, a radius of 1.444 ± 0.057 R⊙ and an effective temperature of 6060 ± 150 K, while its companion is a 0.85 ± 0.12 MJ, 1.510 ± 0.078 RJ planet in a circular orbit. HATS-12 shows a periodic 5.1 mmag flux decrease every 3.1428 days and Keplerian RV variations around a V = 12.8 F-star. HATS-12 has a mass of 1.489 ± 0.071 M⊙, a radius of 2.21 ± 0.21 R⊙, and an effective temperature of 6408 ± 75 K. For HATS-12b, our measurements indicate that this is a 2.38 ± 0.11 MJ, 1.35 ± 0.17 RJ planet in a circular orbit. Both host stars show subsolar metallicities of -0.390 ± 0.060 dex and dex, respectively, and are (slightly) evolved stars. In fact, HATS-11 is among the most metal-poor and, HATS-12, with a log g∗ of 3.923 0.0065, is among the most evolved stars hosting a hot-Jupiter planet. Importantly, HATS-11 and HATS-12 have been observed in long cadence by Kepler as part of K2 campaign 7 (EPIC216414930 and EPIC218131080 respectively).
KW - planetary systems
KW - stars: individual (HATS-11 - HATS-12)
KW - techniques: photometric
KW - techniques: spectroscopic
UR - https://www.scopus.com/pages/publications/84991672217
UR - https://www.scopus.com/pages/publications/84991672217#tab=citedBy
U2 - 10.3847/0004-6256/152/4/88
DO - 10.3847/0004-6256/152/4/88
M3 - Article
AN - SCOPUS:84991672217
SN - 0004-6256
VL - 152
JO - Astronomical Journal
JF - Astronomical Journal
IS - 4
M1 - 88
ER -