Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1093/mnras/stz1084 |
| NGTS-4b: A sub-Neptune transiting in the desert | |
| West, Richard G.1,2; Gillen, Edward3; Bayliss, Daniel1,2; Burleigh, Matthew R.4; Delrez, Laetitia3; Gunther, Maximilian N.3; Hodgkin, Simon T.5; Jackman, James A. G.1,2; Jenkins, James S.6,7; King, George1,2; McCormac, James1,2; Nielsen, Louise D.8; Raynard, Liam4; Smith, Alexis M. S.9; Soto, Maritza6; Turner, Oliver8; Wheatley, Peter J.1,2; Almleaky, Yaseen10,11; Armstrong, David J.1,2; Belardi, Claudia4; Bouchy, Francois8; Briegal, Joshua T.3; Burdanov, Artem12; Cabrera, Juan9; Casewell, Sarah L.4; Chaushev, Alexander1,2,4; Chazelas, Bruno8; Chote, Paul1,2; Cooke, Benjamin F.1,2; Csizmadia, Szilard9; Ducrot, Elsa12; Eigmueller, Philipp9,13; Erikson, Anders9; Foxell, Emma1,2; Gansicke, Boris T.1,2; Gillon, Michael12; Goad, Michael R.4; Jehin, Emmanuel12; Lambert, Gregory3; Longstaff, Emma S.4; Louden, Tom1,2; Moyano, Maximiliano1,14; Murray, Catriona3; Pollacco, Don1,2; Queloz, Didier3; Rauer, Heike9,13,15; Sohy, Sandrine12; Thompson, Samantha J.3; Udry, Stephane8; Walker, Simon. R.1,2; Watson, Christopher A.16 | |
| 通讯作者 | West, Richard G. |
| 来源期刊 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| ISSN | 0035-8711 |
| EISSN | 1365-2966 |
| 出版年 | 2019 |
| 卷号 | 486期号:4页码:5094-5103 |
| 英文摘要 | We report the discovery of NGTS-4b, a sub-Neptune-sized planet transiting a 13th magnitude K-dwarf in a 1.34 d orbit. NGTS-4b has a mass M = 20.6 +/- 3.0 M and radius R = 3.18 +/- 0.26 R , which places it well within the so-called Neptunian Desert. The mean density of the planet (3.45 +/- 0.95 g cm(-3)) is consistent with a composition of 100 per cent H2O or a rocky core with a volatile envelope. NGTS-4b is likely to suffer significant mass loss due to relatively strong EUV/X-ray irradiation. Its survival in the Neptunian desert may be due to an unusually high-core mass, or it may have avoided the most intense X-ray irradiation by migrating after the initial activity of its host star had subsided. With a transit depth of 0.13 +/- 0.02 per cent, NGTS-4b represents the shallowest transiting system ever discovered from the ground, and is the smallest planet discovered in a wide-field ground-based photometric survey. |
| 英文关键词 | techniques: photometric planets and satellites: detection stars: individual: NGTS-4 planetary systems |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | England ; Chile ; Switzerland ; Germany ; Saudi Arabia ; Belgium ; North Ireland |
| 开放获取类型 | Green Published, Green Submitted, hybrid, Green Accepted |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000474908200049 |
| WOS关键词 | ALL-SKY ; PLANET ; ALGORITHM ; EXOPLANETS ; TELESCOPE ; SEARCH ; KELT ; STAR |
| 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/2XILL650/217690 |
| 作者单位 | 1.Univ Warwick, Ctr Exoplanets & Habitabil, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands, England; 2.Univ Warwick, Dept Phys, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands, England; 3.Cavendish Lab, Astrophys Grp, JJ Thomson Ave, Cambridge CB3 0HE, England; 4.Univ Leicester, Leicester Inst Space & Observat, Dept Phys & Astron, Leicester LE1 7RH, Leics, England; 5.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England; 6.Univ Chile, Dept Astron, Casilla 36-D, Santiago, Chile; 7.CATA, Casilla 36-D, Santiago, Chile; 8.Univ Geneva, Observ Geneve, 51 Ch Maillettes, CH-1290 Sauverny, Switzerland; 9.German Aerosp Ctr, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany; 10.King Abdulaziz Univ, Space & Astron Dept, Fac Sci, Jeddah 21589, Saudi Arabia; 11.King Abdullah Ctr Crescent Observat & Astron, Makkah Clock 24231, Mecca, Saudi Arabia; 12.Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, B-4000 Liege, Belgium; 13.TU Berlin, Ctr Astron & Astrophys, Hardenbergstr 36, D-10623 Berlin, Germany; 14.Univ Catolica Norte, Inst Astron, Angamos 06010, Antofagasta 1270709, Chile; 15.FU Berlin, Inst Geol Sci, Malteserstr 74-100, D-12249 Berlin, Germany; 16.Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland |
| 推荐引用方式 GB/T 7714 | West, Richard G.,Gillen, Edward,Bayliss, Daniel,et al. NGTS-4b: A sub-Neptune transiting in the desert[J],2019,486(4):5094-5103. |
| APA | West, Richard G..,Gillen, Edward.,Bayliss, Daniel.,Burleigh, Matthew R..,Delrez, Laetitia.,...&Watson, Christopher A..(2019).NGTS-4b: A sub-Neptune transiting in the desert.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,486(4),5094-5103. |
| MLA | West, Richard G.,et al."NGTS-4b: A sub-Neptune transiting in the desert".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 486.4(2019):5094-5103. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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