Characterization of two new transiting sub-Neptunes and a terrestrial planet around M-dwarf hosts

Astronomy and Astrophysics 2026 Open access

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Authors: E. Poultourtzidis, G. Lacedelli, E. Pallé, I. Carleo, C. Magliano, S. Geraldía-González, J. A. Caballero, G. Morello, J. Orell-Miquel, H. M. Tabernero, F. Murgas, G. Covone
+40 more F. J. Pozuelos, P. J. Amado, V. J. S. Béjar, S. Chairetas, C. Cifuentes, David R. Ciardi, Karen A. Collins, I. J. M. Crossfield, E. Esparza-Borges, G. Fernández-Rodríguez, A. Fukui, Y. Hayashi, A. P. Hatzes, Th. Henning, E. Herrero, K. Horne, S. B. Howell, K. Isogai, Jon M. Jenkins, Y. Kawai, F. Libotte, E. Matthews, Pedro Pablo Meni Gallardo, Ismael Mireles, J. C. Morales, N. Narita, Ogunwale B.B, H. Parviainen, Andreas Quirrenbach, A. Reiners, Ignasi Ribas, Ramotholo Sefako, Avi Shporer, Richard P. Schwarz, G. Srdoc, L. Tal-Or, S. Vanaverbeke, N. Watanabe, Cristilyn N. Watkins, F. Zong Lang
DOI: 10.1051/0004-6361/202557155
Cited by: 2
References: 120

Abstract

We report the confirmation of three transiting exoplanets orbiting TOI-1243 (LSPM J0902+7138), TOI-4529 (G 2-21), and TOI-5388 (Wolf 346) that were initially detected by TESS through ground-based photometry and radial velocity follow-up measurements with CARMENES. The planets present short orbital periods of 4.65, 5.88, and 2.59 days, and they orbit early-M dwarfs (M2.0 V, M1.5 V, and M3.0 V, respectively). We were able to precisely determine the radius of all three planets with a precision of

Fields of Study & Subjects

Stellar planetary and galactic studies Astronomy and Astrophysical Research Scientific Research and Discoveries

Publication details

Journal / source
Astronomy and Astrophysics
Publisher
EDP Sciences
Volume
707
Pages
A106–A106
Publication date
12 January 2026
Language
EN