RT journal article
T1 The KOBE experiment: K-dwarfs Orbited By habitable Exoplanets
T2 Project goals, target selection, and stellar characterization
A1 Lillo-Box, Jorge
A1 Santos, Nuno
A1 Santerne, Alexandre
A1 Silva, André
A1 Barrado Navascués, David
A1 Faria, João
A1 Castro-González, Amadeo
A1 Balsalobre Ruza, Olga
A1 Morales-Calderón, María
A1 Saavedra, A.
A1 Marfil, Emilio
A1 Sousa, S. G.
A1 Adibekyan, V.
A1 Berihuete Macías, Ángel
A1 Barros, Susana
A1 Delgado Mena, Elisa
A1 Huelamo, Nuria
A1 Deleuil, Magali
A1 Demangeon, O. D. S.
A1 Figueira, Pedro
A1 Grouffal, Salomé
A1 Aceituno, J.
A1 Azzaro, M.
A1 Bergond, G.
A1 Fernández-Martín, A.
A1 Galadí, D.
A1 Gallego, E.
A1 Gardini, A.
A1 Góngora, S.
A1 Guijarro, A.
A1 Hermelo, I.
A1 Martín, P.
A1 Mínguez, P.
A1 Montoya, L. M.
A1 Pedraz, S.
A1 Vico Linares, J. I.
A2 Estadística e Investigación Operativa
K1 planets and satellites: detection
K1 planets and satellites: fundamental parameters
K1 stars: late-type
K1 techniques: radial velocities
AB The detection of habitable worlds is one of humanitya-s greatest endeavors. Thus far, astrobiological studies have shown that one of the most critical components for allowing life to develop is liquid water. Its chemical properties and its capacity to dissolve and, hence, transport other substances makes this constituent a key piece in this regard. As a consequence, looking for life as we know it is directly related to the search for liquid water. For a remote detection of life in distant planetary systems, this essentially means looking for planets in the so-called habitable zone. In this sense, K-dwarf stars are the perfect hosts to search for planets in this range of distances. Contrary to G-dwarfs, the habitable zone is closer, thus making planet detection easier using transit or radial velocity techniques. Contrary to M-dwarfs, stellar activity is on a much smaller scale, hence, it has a smaller impact in terms of both the detectability and the true habitability of the planet. Also, K-dwarfs are the quietest in terms of oscillations, and granulation noise. In spite of this, there is a dearth of planets in the habitable zone of K-dwarfs due to a lack of observing programs devoted to this parameter space. In response to a call for legacy programs of the Calar Alto observatory, we have initiated the first dedicated and systematic search for habitable planets around these stars: K-dwarfs Orbited By habitable Exoplanets (KOBE). This survey is monitoring the radial velocity of 50 carefully pre-selected K-dwarfs with the CARMENES instrument over five semesters, with an average of 90 data points per target. Based on planet occurrence rates convolved with our detectability limits, we expect to find 1.68 ± 0.25 planets per star in the KOBE sample. Furthermore, in half of the sample, we expect to find one of those planets within the habitable zone. Here, we describe the motivations, goals, and target selection for the project as well as the preliminary stellar characterization. © 2022 EDP Sciences. All rights reserved.
YR 2022
FD 2022-11
LK http://hdl.handle.net/10498/29315
UL http://hdl.handle.net/10498/29315
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 08-nov-2026