Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3847/1538-3881/aa5cb6 |
| EPIC 219388192b-An Inhabitant of the Brown Dwarf Desert in the Ruprecht 147 Open Cluster | |
| Nowak, Grzegorz1,2; Palle, Enric1,2; Gandolfi, Davide3,4; Dai, Fei5,6; Lanza, Antonino F.7; Hirano, Teruyuki8; Barragan, Oscar3; Fukui, Akihiko9; Bruntt, Hans10; Endl, Michael11,12; Cochran, William D.11,12; Moroni, Pier G. Prada13,14; Prieto-Arranz, Jorge1,2; Kiilerich, Amanda10; Nespral, David1,2; Hatzes, Artie P.15; Albrecht, Simon10; Deeg, Hans1,2; Winn, Joshua N.16; Yu, Liang5,6; Kuzuhara, Masayuki17,18; Grziwa, Sascha19; Smith, Alexis M. S.20; Guenther, Eike W.15; Van Eylen, Vincent21; Csizmadia, Szilard20; Fridlund, Malcolm22,23; Cabrera, Juan20; Eigmueller, Philipp20; Erikson, Anders20; Korth, Judith19; Narita, Norio17,18,24; Paetzold, Martin19; Rauer, Heike20,25; Ribas, Ignasi26 | |
| 通讯作者 | Nowak, Grzegorz |
| 来源期刊 | ASTRONOMICAL JOURNAL
 |
| ISSN | 0004-6256 |
| EISSN | 1538-3881 |
| 出版年 | 2017 |
| 卷号 | 153期号:3 |
| 英文摘要 | We report the discovery of EPIC 219388192b, a transiting brown dwarf in a 5.3 day orbit around a member star of Ruprecht 147, the oldest nearby open cluster association, which was photometrically monitored by K2 during its Campaign 7. We combine the K2 time-series data with ground-based adaptive optics imaging and high-resolution spectroscopy to rule out false positive scenarios and determine the main parameters of the system. EPIC 219388192b has a radius of R-b= 0.937 +/- 0.032 R-Jup and mass of M-b= 36.84 +/- 0.97 M-Jup, yielding a mean density of 59.6 +/- 7.6 g cm(- 3). The host star is nearly a solar twin with mass M-star = 1.01 +/- 0.04 Me, radius R-star = 1.01 +/- 0.03 R-circle dot, effective temperature T-eff = 5850 +/- 85 K, and iron abundance [Fe/ H]. = 0.03 +/- 0.08 dex. Its age, spectroscopic distance, and reddening are consistent with those of Ruprecht 147, corroborating its cluster membership. EPIC 219388192b is the first mature brown dwarf with precise determinations of mass, radius, and age, and serves as benchmark for evolutionary models in the substellar regime. |
| 英文关键词 | brown dwarfs stars : individual (EPIC 219388192) techniques : photometric techniques : radial velocities techniques : spectroscopic |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Spain ; Italy ; Germany ; USA ; Japan ; Denmark ; Netherlands ; Sweden |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000395948000003 |
| WOS关键词 | EXTRASOLAR GIANT PLANETS ; TRANSITING EXOPLANETS ; EVOLUTIONARY MODELS ; ECLIPSING BINARIES ; SOPHIE VELOCIMETRY ; TIDAL DISSIPATION ; MASS STARS ; T DWARFS ; KEPLER ; ATMOSPHERES |
| WOS类目 | Astronomy & Astrophysics |
| WOS研究方向 | Astronomy & Astrophysics |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197582 |
| 作者单位 | 1.IAC, E-38205 Tenerife, Spain; 2.Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain; 3.Univ Turin, Dipartimento Fis, Via P Giuria 1, I-10125 Turin, Italy; 4.Heidelberg Univ, Zentrum Astron, Landessternwarte Konigstuhl, Konigstuhl 12, D-69117 Heidelberg, Germany; 5.MIT, Dept Phys, Cambridge, MA 02139 USA; 6.MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA; 7.Osserv Astrofis Catania, INAF, Via S Sofia 78, I-95123 Catania, Italy; 8.Tokyo Inst Technol, Dept Earth & Planetary Sci, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528551, Japan; 9.Natl Astron Observ Japan, Okayama Astrophys Observ, Okayama 7190232, Japan; 10.Aarhus Univ, Dept Phys & Astron, Stellar Astrophys Ctr, Ny Munkegade 120, DK-8000 Aarhus C, Denmark; 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.Ist Nazl Fis Nucl, Sect Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy; 14.Univ Pisa, Dept Phys E Fermi, Largo Bruno Pontecorvo 3, Pisa, Italy; 15.Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg, Germany; 16.Princeton Univ, Dept Astrophys Sci, 4 Ivy Lane, Princeton, NJ 08544 USA; 17.Natl Inst Nat Sci, Astrobiol Ctr, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan; 18.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan; 19.Univ Cologne, Rhein Inst Umweltforsch, Aachener Str 209, D-50931 Cologne, Germany; 20.German Aerosp Ctr, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany; 21.Leiden Univ, Leiden Observ, NL-2333 CA Leiden, Netherlands; 22.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands; 23.Chalmers, Onsala Space Observ, Dept Earth & Space Sci, S-43992 Onsala, Sweden; 24.Univ Tokyo, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan; 25.TU Berlin, Ctr Astron & Astrophys, Hardenbergstr 36, D-10623 Berlin, Germany; 26.IEEC, CSIC, Inst Ciencies Espai, Campus UAB, E-08193 Bellaterra, Spain |
| 推荐引用方式 GB/T 7714 | Nowak, Grzegorz,Palle, Enric,Gandolfi, Davide,et al. EPIC 219388192b-An Inhabitant of the Brown Dwarf Desert in the Ruprecht 147 Open Cluster[J],2017,153(3). |
| APA | Nowak, Grzegorz.,Palle, Enric.,Gandolfi, Davide.,Dai, Fei.,Lanza, Antonino F..,...&Ribas, Ignasi.(2017).EPIC 219388192b-An Inhabitant of the Brown Dwarf Desert in the Ruprecht 147 Open Cluster.ASTRONOMICAL JOURNAL,153(3). |
| MLA | Nowak, Grzegorz,et al."EPIC 219388192b-An Inhabitant of the Brown Dwarf Desert in the Ruprecht 147 Open Cluster".ASTRONOMICAL JOURNAL 153.3(2017). |
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