K2-60b and K2-107b. A Sub-Jovian and a Jovian Planet from the K2 Mission

被引：20
|
作者：
Eigmueller, Philipp [1 ]
Gandolfi, Davide [2 ,3 ]
Persson, Carina M. [4 ]
Donati, Paolo [5 ]
Fridlund, Malcolm [4 ,6 ]
Csizmadia, Szilard [1 ]
Barragan, Oscar [2 ]
Smith, Alexis M. S. [1 ]
Cabrera, Juan [1 ]
Korth, Judith [7 ]
Grziwa, Sascha [7 ]
Prieto-Arranz, Jorge [8 ,9 ]
Nespral, David [8 ,9 ]
Saario, Joonas [10 ]
Cochran, William D. [11 ,12 ]
Cusano, Felice [5 ]
Deeg, Hans J. [8 ,9 ]
Endl, Michael [11 ,12 ]
Erikson, Anders [1 ]
Guenther, Eike W. [13 ]
Hatzes, Artie P. [13 ]
Paetzold, Martin [7 ]
Rauer, Heike [1 ,14 ]
机构：
[1] German Aerosp Ctr, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany
[2] Univ Turin, Dipartimento Fis, Via P Giuria 1, I-10125 Turin, Italy
[3] Heidelberg Univ, Zentrum Astron, Landessternwarte Konigstuhl, Konigstuhl 12, D-69117 Heidelberg, Germany
[4] Chalmers, Onsala Space Observ, Dept Earth & Space Sci, SE-43992 Onsala, Sweden
[5] Osservatorio Astron Bologna, INAF, Via Ranzani 1, I-40127 Bologna, Italy
[6] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
[7] Univ Cologne, Rhein Inst Umweltforsch, Aachener Str 209, D-50931 Cologne, Germany
[8] Inst Astrofis Canarias, E-38205 Tenerife, Spain
[9] Univ La Laguna, Dept Astrofis, E-38206 San Cristobal la Laguna, Spain
[10] Nord Opt Telescope, Apartado 474, E-38700 Santa Cruz De La Palma, Spain
[11] Univ Texas Austin, Dept Astron, 2515 Speedway,Stop C1400, Austin, TX 78712 USA
[12] Univ Texas Austin, McDonald Observ, 2515 Speedway,Stop C1400, Austin, TX 78712 USA
[13] Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg, Germany
[14] TU Berlin, Ctr Astron & Astrophys, Hardenbergstr 36, D-10623 Berlin, Germany
来源：
ASTRONOMICAL JOURNAL | 2017年 / 153卷 / 03期
关键词：
planetary systems; planets and satellites: detection; planets and satellites: gaseous planets; planets and satellites: individual (K2-60 b; K2-107; b); TRANSITING EXTRASOLAR PLANETS; Y-2; ISOCHRONES; AUTOMATIC CODE; LIGHT CURVES; HOT JUPITER; MASS; KEPLER; STARS; EXOPLANETS; DWARF;
D O I：
10.3847/1538-3881/aa5d0b
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the characterization and independent detection of K2-60b, as well as the detection and characterization of K2-107b, two transiting hot gaseous planets from the K2 space mission. We confirm the planetary nature of the two systems and determine their fundamental parameters combining the K2 time-series data with FIES @ NOT and HARPS-N @ TNG spectroscopic observations. K2-60b has a radius of 0.683 +/- 0.037 R-Jup and a mass of 0.426 +/- 0.037 M-Jup and orbits a G4 V star with an orbital period of 3.00267 +/- 0.00006 days. K2-107b has a radius of 1.44 +/- 0.15 R-Jup and a mass of 0.84 +/- 0.08 M-Jup and orbits an F9 IV star every 3.31392 +/- 0.00002 days. K2-60b is among the few planets at the edge of the so-called "desert" of short-period sub-Jovian planets. K2107b is a highly inflated Jovian planet orbiting an evolved star about to leave the main sequence.
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页数：8
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