TOI-908: a planet at the edge of the Neptune desert transiting a G-type star

• Tipo: Artigo em Revista Científica Internacional
• Data: 2023

Autores

Hawthorn, F (Autor) Outra; Bayliss, D (Autor) Outra; Armstrong, DJ (Autor) Outra; Fernandez, JF (Autor) Outra; Osborn, A (Autor) Outra; Sousa, SG (Autor) FCUP; Adibekyan, V (Autor) Outra; Davoult, J (Autor) Outra; Collins, KA (Autor) Outra; Alibert, Y (Autor) Outra; Barros, SCC (Autor) FCUP; Bouchy, F (Autor) Outra; Brogi, M (Autor) Outra; Ciardi, DR (Autor) Outra; Daylan, T (Autor) Outra; Mena, ED (Autor) FCUP; Demangeon, ODS (Autor) Outra; Diaz, RF (Autor) Outra; Gan, TJ (Autor) Outra; Horne, K (Autor) Outra; Hoyer, S (Autor) Outra; Jenkins, JM (Autor) Outra; Jensen, ELN (Autor) Outra; Kielkopf, JF (Autor) Outra; Kostov, V (Autor) Outra; Latham, DW (Autor) Outra; Levine, AM (Autor) Outra; Lillo-Box, J (Autor) Outra; Nielsen, LD (Autor) Outra; Osborn, HP (Autor) Outra; Ricker, GR (Autor) Outra; Rodrigues, J (Autor) Outra; N.C. Santos (Autor) FCUP; Schwarz, RP (Autor) Outra; Seager, S (Autor) Outra; Bell, JS (Autor) Outra; Shporer, A (Autor) Outra; Stockdale, C (Autor) Outra; Strom, PA (Autor) Outra; Tenenbaum, P (Autor) Outra; Udry, S (Autor) Outra; Wheatley, PJ (Autor) Outra; Winn, JN (Autor) Outra; Ziegler, C (Autor) Outra

Revista

Título: Monthly Notices of the Royal Astronomical Society

Vol. 524

Páginas: 3877-3893

ISSN: 0035-8711

Editora: Oxford University Press

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00Y-XEH

DOI: 10.1093/mnras/stad1840

Abstract (EN): We present the discovery of an exoplanet transiting TOI-908 (TIC-350153977) using data from TESS sectors 1, 12, 13, 27, 28, and 39. TOI-908 is a T = 10.7 mag G-dwarf (T-eff = 5626 +/- 61 K) solar-like star with a mass of 0.950 +/- 0.010 M (circle dot) and a radius of 1.028 +/- 0.030 R-circle dot. The planet, TOI-908 b, is a 3.18 +/- 0.16 R-circle plus planet in a 3.18 d orbit. Radial velocity measurements from HARPS reveal TOI-908 b has a mass of approximately 16.1 +/- 4.1 M-circle plus, resulting in a bulk planetary density of 2.7(-0.4)(+0.2) g cm(-3). TOI-908 b lies in a sparsely populated region of parameter space known as the Neptune desert. The planet likely began its life as a sub-Saturn planet before it experienced significant photoevaporation due to X-rays and extreme ultraviolet radiation from its host star, and is likely to continue evaporating, losing a significant fraction of its residual envelope mass.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 17