arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2103.04950astro-ph.EP
收藏

一颗附近的凌日岩质系外行星,适合大气调查

A nearby transiting rocky exoplanet that is suitable for atmospheric investigation

T. Trifonov, J. A. Caballero, J. C. Morales, A. Seifahrt, I. Ribas, A. Reiners, J. L. Bean, R. Luque, H. Parviainen, E. Pallé, S. Stock, M. Zechmeister, P. J. A… 展开作者

T. Trifonov, J. A. Caballero, J. C. Morales, A. Seifahrt, I. Ribas, A. Reiners, J. L. Bean, R. Luque, H. Parviainen, E. Pallé, S. Stock, M. Zechmeister, P. J. Amado, G. Anglada-Escudé3, M. Azzaro, T. Barclay, V. J. S. Béjar, P. Bluhm, N. Casasayas-Barris, C. Cifuentes, K. A. Collins, K. I. Collins, M. Cortés-Contreras, J. de Leon, S. Dreizler, C. D. Dressing, E. Esparza-Borges, N. Espinoza, M. Fausnaugh, A. Fukui, A. P. Hatzes, C. Hellier, Th. Henning, C. E. Henze, E. Herrero, S. V. Jeffers, J. M. Jenkins, E. L. N. Jensen, A. Kaminski, D. Kasper, D. Kossakowski, M. Kürster, M. Lafarga, D. W. Latham, A. W. Mann, K. Molaverdikhani, D. Montes, B. T. Montet, F. Murgas, N. Narita, M. Oshagh, V. M. Passegger, D. Pollacco, S. N. Quinn, A. Quirrenbach, G. R. Ricker, C. Rodríguez López, J. Sanz-Forcada, R. P. Schwarz, A. Schweitzer, S. Seager, A. Shporer, M. Stangret, J. Stürmer, T. G. Tan, P. Tenenbaum, J. D. Twicken, R. Vanderspek, J. N. Winn

摘要:

凌日系外行星的光谱学可以用来研究它们的大气特性和可居住性。结合径向速度(RV)和凌日数据提供了关于系外行星物理特性的更多信息。我们探测到一颗过境的岩石行星,其轨道周期为1.467天,围绕附近的红矮星Gliese 486。格利泽486 b的质量是2.81地球质量,半径是1.31地球半径,不确定度为5%,根据RV数据和光度光变曲线确定。主星的距离约为8.1秒差距,J波段的星等约为7.2等,从地球的两个半球都可以观测到。根据这些性质和行星的短轨道周期和高平衡温度,我们表明,这颗类地行星是适合发射和过境光谱。

英文摘要:

Spectroscopy of transiting exoplanets can be used to investigate their atmospheric properties and habitability. Combining radial velocity (RV) and transit data provides additional information on exoplanet physical properties. We detect a transiting rocky planet with an orbital period of 1.467 days around the nearby red dwarf star Gliese 486. The planet Gliese 486 b is 2.81 Earth masses and 1.31 Earth radii, with uncertainties of 5%, as determined from RV data and photometric light curves. The host star is at a distance of ~8.1 parsecs, has a J-band magnitude of ~7.2, and is observable from both hemispheres of Earth. On the basis of these properties and the planet's short orbital period and high equilibrium temperature, we show that this terrestrial planet is suitable for emission and transit spectroscopy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑