在M4型矮星GJ 3473 (TOI-488)周围发现一颗炽热凌星地球大小行星及第二颗温带非凌星行星
地球与行星天体物理
2020-10-28 v1
摘要
我们给出GJ 3473 b（G 50–16，TOI-488.01）的确认与表征，这是一颗绕M4型矮星运行的炽热地球大小行星，其凌星信号（）最初由凌星系外行星巡天卫星（TESS）探测到。通过对CARMENES、IRD和HARPS的后续径向速度观测与LCOGT、MuSCAT和MuSCAT2的大量地基测光后续观测进行联合建模，我们确定了精确行星质量与半径。此外，我们报告在该系统中发现第二颗温带非凌星行星GJ 3473 c，其最小质量，轨道周期。该系统的内行星GJ 3473 b是迄今已知最炽热的凌星地球大小行星之一，且伴有动力学质量测量，这使其成为一个特别有吸引力的热发射光谱观测目标。
引用
@article{arxiv.2009.10432,
title = {Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)},
author = {J. Kemmer and S. Stock and D. Kossakowski and A. Kaminski and K. Molaverdikhani and M. Schlecker and J. A. Caballero and P. J. Amado and N. Astudillo-Defru and X. Bonfils and D. Ciardi and K. A. Collins and N. Espinoza and A. Fukui and T. Hirano and J. M. Jenkins and D. W. Latham and E. C. Matthews and N. Narita and E. Pallé and H. Parviainen and A. Quirrenbach and A. Reiners and I. Ribas and G. Ricker and J. E. Schlieder and S. Seager and R. V and J. N. Winn and J. M. Almenara and V. J. S. Béjar and P. Bluhm and F. Bouchy and P. Boyd and J. L. Christiansen and C. Cifuentes and R. Cloutier and K. I. Collins and M. Cortés-Contreras and I. J M. Crossfield and N. Crouzet and J. P. de Leon and D. D. Della-Rose and X. Delfosse and S. Dreizler and E. Esparza-Borges and Z. Essack and Th. Forveille and P. Figueira and D. Galadí-Enríquez and T. Gan and A. Glidden and E. J. Gonzales and P. Guerra and H. Harakawa and A. P. Hatzes and Th. Henning and E. Herrero and K. Hodapp and Y. Hori and S. B. Howell and M. Ikoma and K. Isogai and S. V. Jeffers and M. Kürster and K. Kawauchi and T. Kimura and P. Klagyivik and T. Kotani and T. Kurokawa and N. Kusakabe and M. Kuzuhara and M. Lafarga and J. H. Livingston and R. Luque and R. Matson and J. C. Morales and M. Mori and P. S. Muirhead and F. Murgas and J. Nishikawa and T. Nishiumi and M. Omiya and S. Reffert and C. Rodríguez López and N. C. Santos and P. Schöfer and R. P. Schwarz and B. Shiao and M. Tamura and Y. Terada and J. D. Twicken and A. Ueda and S. Vievard and N. Watanabe and M. Zechmeister},
journal= {arXiv preprint arXiv:2009.10432},
year = {2020}
}
备注
21 pages; accepted for publication in A&A