TOI-1416: A system with a super-Earth planet with a 1.07 d period

H. J. Deeg, I. Y. Georgieva, G. Nowak, C. M. Persson, B. L. Cale, F. Murgas, E. Pallé, D. Godoy-Rivera, F. Dai, D. R. Ciardi, J. M.Akana Murphy, P. G. Beck, C. J. Burke, J. Cabrera, I. Carleo, W. D. Cochran, K. A. Collins, Sz Csizmadia, M. El Mufti, M. FridlundA. Fukui, D. Gandolfi, R. A. García, E. W. Guenther, P. Guerra, S. Grziwa, H. Isaacson, K. Isogai, J. M. Jenkins, P. Kábath, J. Korth, K. W.F. Lam, D. W. Latham, R. Luque, M. B. Lund, J. H. Livingston, S. Mathis, S. Mathur, N. Narita, J. Orell-Miquel, H. L.M. Osborne, H. Parviainen, P. P. Plavchan, S. Redfield, D. R. Rodriguez, R. P. Schwarz, S. Seager, A. M.S. Smith, V. Van Eylen, J. Van Zandt, J. N. Winn, C. Ziegler

Producción científica: Articlerevisión exhaustiva

Resumen

TOI-1416 is a late G or early K-type dwarf star. TESS detected transits of a planet, TOI-1416 b, around it with a period of 1.07 days. The planet's mass is approximately 3.48 M•, and its radius is about 1.62 R•, resulting in a density slightly less than Earth's. There might be another planet, "c", but it's uncertain due to interference related to the Moon's period. TOI-1416 b is a hot super-Earth-like planet with a temperature of roughly 1570 K. Its composition might be like molten magma with dissolved water, making its atmosphere potentially interesting for transmission spectroscopy using JWST. This planet doesn't fall into a unique category but suggests that planets like it, with ultra-short periods, fall in a broad range up to about 30 days. These are differentiated from other types by the "Neptune Desert" and a valley distinguishing super-Earths from sub-Neptune planets. A pattern has emerged with many small, short-period planets between 0.6-1.4 days. The Neptune Desert's parameters need adjustment due to the discovery of more short-period planets. The defined lower limit of this desert is a radius of 1.6 R• and a mass of 0.028 Mjup. Limits against the planets' insolation and effective temperatures are also provided.
Idioma originalEnglish
Número de artículoA12
PublicaciónAstronomy and Astrophysics
Volumen677
DOI
EstadoPublished - sept 1 2023

ASJC Scopus Subject Areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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