Feature-rich transmission spectrum for WASP-127b Cloud-free skies for the puffiest known super-Neptune?
文献类型：期刊论文
| 作者 | Palle, E.1,2; Chen, G.1,2,3; Prieto-Arranz, J.1,2; Nowak, G.1,2; Murgas, F.1,2; Nortmann, L.1,2; Pollacco, D.4; Lam, K.4; Montanes-Rodriguez, P.1,2; Parviainen, H.1,2 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 602页码:5 |
| 关键词 | planetary systems planets and satellites: individual: WASP-127b planets and satellites: atmospheres techniques: spectroscopic |
| ISSN号 | 1432-0746 |
| DOI | 10.1051/0004-6361/201731018 |
| 通讯作者 | Palle, E.(epalle@iac.es) |
| 英文摘要 | Context. WASP-127b is a planet with one of the lowest densities discovered to date. With a sub-Saturn mass (M-p = 0.18 +/- 0.02 M-J) and super-Jupiter radius (R-p = 1.37 +/- 0.04 R-J), it orbits a bright G5 star that is about to leave the main-sequence. Aims. We aim to explore the atmosphere of WASP-127b in order to retrieve its main atmospheric components, and to find hints for its intriguing inflation and evolutionary history. Methods. We used the ALFOSC spectrograph at the NOT telescope to observe a low-resolution (R similar to 330, seeing limited) long-slit spectroscopic time series during a planetary transit, and present here the first transmission spectrum for WASP-127b. Results. We find a strong Rayleigh slope at blue wavelengths and a hint of Na absorption, although the quality of the data does not allow us to claim a detection. At redder wavelengths the absorption features of TiO and VO are the best explanation to fit the data. Conclusions. Although observations with a higher signal-to-noise ratio are needed to conclusively confirm the absorption features, WASP-127b seems to posses a cloud-free atmosphere and is one of the best targets on which to perform further characterization studies in the near future. |
| WOS关键词 | HOT JUPITERS ; GIANT PLANETS ; LIGHT CURVES ; HD 209458B ; SPECTROSCOPY ; ATMOSPHERES ; EXOPLANETS ; MODEL ; MASS ; WINDS |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000404648300134 |
| 出版者 | EDP SCIENCES S A |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/22661]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Palle, E. |
| 作者单位 | 1.Inst Astrofis Canarias, Via Lactea S-N, Tenerife 38205, Spain 2.Univ La Laguna, Dept Astrofis, San Cristobal De La Lagu 38200, Spain 3.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China 4.Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England |
| 推荐引用方式 GB/T 7714 | Palle, E.,Chen, G.,Prieto-Arranz, J.,et al. Feature-rich transmission spectrum for WASP-127b Cloud-free skies for the puffiest known super-Neptune?[J]. ASTRONOMY & ASTROPHYSICS,2017,602:5. |
| APA | Palle, E..,Chen, G..,Prieto-Arranz, J..,Nowak, G..,Murgas, F..,...&Casasayas-Barris, N..(2017).Feature-rich transmission spectrum for WASP-127b Cloud-free skies for the puffiest known super-Neptune?.ASTRONOMY & ASTROPHYSICS,602,5. |
| MLA | Palle, E.,et al."Feature-rich transmission spectrum for WASP-127b Cloud-free skies for the puffiest known super-Neptune?".ASTRONOMY & ASTROPHYSICS 602(2017):5. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。