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The CARMENES search for exoplanets around M dwarfs. Detection of a mini-Neptune around LSPM J2116+0234 and refinement of orbital parameters of a super-Earth around GJ 686 (BD+18 3421)

MPS-Authors

Lalitha,  S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Baroch,  D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Morales,  J. C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Passegger,  V. M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bauer,  F. F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Cardona Guillén,  C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Dreizler,  S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Oshagh,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Reiners,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ribas,  I.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Caballero,  J. A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Quirrenbach,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Amado,  P. J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Béjar,  V. J. S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Colomé,  J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Cortés-Contreras,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Galadí-Enríquez,  D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

González-Cuesta,  L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Guenther,  E. W.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hagen,  H. -J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Henning,  T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Herrero,  E.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Husser,  T. -O.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Jeffers,  S. V.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kaminski,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kürster,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lafarga,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lodieu,  N.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

López-González,  M. J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Montes,  D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Perger,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Rosich,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Rodríguez,  E.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Rodríguez-López,  C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Schmitt,  J. H. M. M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Tal-Or,  L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Zechmeister,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

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Citation

Lalitha, S., Baroch, D., Morales, J. C., Passegger, V. M., Bauer, F. F., Cardona Guillén, C., et al. (2019). The CARMENES search for exoplanets around M dwarfs. Detection of a mini-Neptune around LSPM J2116+0234 and refinement of orbital parameters of a super-Earth around GJ 686 (BD+18 3421). Astronomy and Astrophysics, 627.


Cite as: https://hdl.handle.net/21.11116/0000-0005-D337-F
Abstract
Although M dwarfs are known for high levels of stellar activity, they are ideal targets for the search of low-mass exoplanets with the radial velocity (RV) method. We report the discovery of a planetary-mass companion around LSPM J2116+0234 (M3.0 V) and confirm the existence of a planet orbiting GJ 686 (BD+18 3421; M1.0 V). The discovery of the planet around LSPM J2116+0234 is based on CARMENES RV observations in the visual and near-infrared channels. We confirm the planet orbiting around