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American Association for the Advancement of Science, Science, 6460(365), p. 1441-1445, 2019

DOI: 10.1126/science.aax3198

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A giant exoplanet orbiting a very-low-mass star challenges planet formation models

Journal article published in 2019 by J. C. Morales ORCID, A. J. Mustill ORCID, I. Ribas ORCID, M. B. Davies ORCID, A. Reiners, F. F. Bauer ORCID, D. Kossakowski, E. Herrero ORCID, E. Rodríguez ORCID, M. J. López-González ORCID, C. Rodríguez-López ORCID, V. J. S. Béjar ORCID, L. González-Cuesta ORCID, R. Luque ORCID, E. Pallé and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

A small star hosts a big planet M dwarfs, the most common type of star, are low-mass objects that emit most of their faint light in the near-infrared, making it difficult to detect any orbiting exoplanets. Morales et al. have observed the nearby M dwarf GJ 3512 in the optical and near-infrared (see the Perspective by Laughlin). Periodic variations in the star's radial velocity show that it hosts a gas giant exoplanet on an eccentric orbit. The authors use simulations to show that such a large exoplanet around such a small star has implications for models of planet formation. Science , this issue p. 1441 ; see also p. 1382