Bibcode
Reiners, A.; Ribas, I.; Zechmeister, M.; Caballero, J. A.; Trifonov, T.; Dreizler, S.; Morales, J. C.; Tal-Or, L.; Lafarga, M.; Quirrenbach, A.; Amado, P. J.; Kaminski, A.; Jeffers, S. V.; Aceituno, J.; Béjar, V. J. S.; Guàrdia, J.; Guenther, E. W.; Hagen, H.-J.; Montes, D.; Passegger, V. M.; Seifert, W.; Schweitzer, A.; Cortés-Contreras, M.; Abril, M.; Alonso-Floriano, F. J.; Eiff, M. Ammler-von; Antona, R.; Anglada-Escudé, G.; Anwand-Heerwart, H.; Arroyo-Torres, B.; Azzaro, M.; Baroch, D.; Barrado, D.; Bauer, F. F.; Becerril, S.; Benítez, D.; Berdiñas, Z. M.; Bergond, G.; Blümcke, M.; Brinkmöller, M.; del Burgo, C.; Cano, J.; Cárdenas Vázquez, M. C.; Casal, E.; Cifuentes, C.; Claret, A.; Colomé, J.; Czesla, S.; Díez-Alonso, E.; Feiz, C.; Fernández, M.; Ferro, I. M.; Fuhrmeister, B.; Galadí-Enríquez, D.; Garcia-Piquer, A.; García Vargas, M. L.; Gesa, L.; Gómez Galera, V.; González Hernández, J. I.; González-Peinado, R.; Grözinger, U.; Grohnert, S.; Guijarro, A.; de Guindos, E.; Gutiérrez-Soto, J.; Hatzes, A. P.; Hauschildt, P. H.; Hedrosa, R. P.; Helmling, J.; Henning, Th.; Hermelo, I.; Hernández Arabí, R.; Hernández Castaño, L.; Hernández Hernando, F.; Herrero, E.; Huber, A.; Huke, P.; Johnson, E. N.; de Juan, E.; Kim, M.; Klein, R.; Klüter, J.; Klutsch, A.; Kürster, M.; Labarga, F.; Lamert, A.; Lampón, M.; Lara, L. M.; Laun, W.; Lemke, U.; Lenzen, R.; Launhardt, R.; López del Fresno, M.; López-González, M. J.; López-Puertas, M.; López Salas, J. F.; López-Santiago, J.; Luque, R.; Magán Madinabeitia, H.; Mall, U. et al.
Bibliographical reference
Astronomy and Astrophysics, Volume 609, id.L5, 7 pp.
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2
2018
Journal
Citations
53
Refereed citations
48
Description
We report on the first star discovered to host a planet detected by
radial velocity (RV) observations obtained within the CARMENES survey
for exoplanets around M dwarfs. HD 147379 (V = 8.9 mag, M = 0.58
± 0.08 M⊙), a bright M0.0 V star at a distance of
10.7 pc, is found to undergo periodic RV variations with a
semi-amplitude of K = 5.1 ± 0.4 m s-1 and a period of
P = 86.54 ± 0.06 d. The RV signal is found in our CARMENES data,
which were taken between 2016 and 2017, and is supported by HIRES/Keck
observations that were obtained since 2000. The RV variations are
interpreted as resulting from a planet of minimum mass mP sin
i = 25 ± 2 M⊕, 1.5 times the mass of Neptune,
with an orbital semi-major axis a = 0.32 au and low eccentricity (e <
0.13). HD 147379 b is orbiting inside the temperate zone around the
star, where water could exist in liquid form. The RV time-series and
various spectroscopic indicators show additional hints of variations at
an approximate period of 21.1 d (and its first harmonic), which we
attribute to the rotation period of the star.
RV data (Table A.1) are only available at the CDS via anonymous ftp to
http://cdsarc.u-strasbg.fr
(ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/609/L5
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