一颗适合大气研究的邻近凌星岩质系外行星
地球与行星天体物理
2021-03-09 v1
摘要
凌星系外行星的光谱学可用于研究其大气性质和宜居性。结合视向速度（RV）与凌星数据可提供关于系外行星物理性质的额外信息。我们探测到一颗轨道周期1.467天的凌星岩质行星，围绕邻近红矮星Gliese 486运行。根据RV数据和测光光变曲线确定，行星Gliese 486 b的质量为2.81地球质量、半径为1.31地球半径，不确定度为5%。宿主星距离约8.1秒差距，J波段星等约7.2，从地球两半球均可观测。基于这些性质以及该行星较短的轨道周期和较高的平衡温度，我们表明这颗类地行星适合进行发射光谱与凌星光谱研究。
引用
@article{arxiv.2103.04950,
title = {A nearby transiting rocky exoplanet that is suitable for atmospheric investigation},
author = {T. Trifonov and J. A. Caballero and J. C. Morales and A. Seifahrt and I. Ribas and A. Reiners and J. L. Bean and R. Luque and H. Parviainen and E. Pallé and S. Stock and M. Zechmeister and P. J. Amado and G. Anglada-Escudé3 and M. Azzaro and T. Barclay and V. J. S. Béjar and P. Bluhm and N. Casasayas-Barris and C. Cifuentes and K. A. Collins and K. I. Collins and M. Cortés-Contreras and J. de Leon and S. Dreizler and C. D. Dressing and E. Esparza-Borges and N. Espinoza and M. Fausnaugh and A. Fukui and A. P. Hatzes and C. Hellier and Th. Henning and C. E. Henze and E. Herrero and S. V. Jeffers and J. M. Jenkins and E. L. N. Jensen and A. Kaminski and D. Kasper and D. Kossakowski and M. Kürster and M. Lafarga and D. W. Latham and A. W. Mann and K. Molaverdikhani and D. Montes and B. T. Montet and F. Murgas and N. Narita and M. Oshagh and V. M. Passegger and D. Pollacco and S. N. Quinn and A. Quirrenbach and G. R. Ricker and C. Rodríguez López and J. Sanz-Forcada and R. P. Schwarz and A. Schweitzer and S. Seager and A. Shporer and M. Stangret and J. Stürmer and T. G. Tan and P. Tenenbaum and J. D. Twicken and R. Vanderspek and J. N. Winn},
journal= {arXiv preprint arXiv:2103.04950},
year = {2021}
}
备注
Published in Science