Cover Image

CARMENES input catalogue of M dwarfs: V. Luminosities, colours, and spectral energy distributions

Context: The relevance of M dwarfs in the search for potentially habitable Earth-sized planets has grown significantly in the last years. Aims: In our on-going effort to comprehensively and accurately characterise confirmed and potential planet-hosting M dwarfs, in particular for the CARMENES survey...

Full description

Saved in:
Bibliographic Details
Main Authors: Cifuentes, Carlos (Author) , Caballero, J. A. (Author) , Cortés-Contreras, M. (Author) , Montes, D. (Author) , Abellán, F. J. (Author) , Dorda, R. (Author) , Holgado, G. (Author) , Osorio, M. R. Zapatero (Author) , Morales, J. C. (Author) , Amado, P. J. (Author) , Passegger, V. M. (Author) , Quirrenbach, Andreas (Author) , Reiners, A. (Author) , Ribas, I. (Author) , Sanz-Forcada, J. (Author) , Schweitzer, A. (Author) , Seifert, Walter (Author) , Solano, E. (Author)
Format: Article (Journal)
Language:English
Published: 12 October 2020
In: Astronomy and astrophysics
Year: 2020, Volume: 642, Pages: 1-32
ISSN:1432-0746
DOI:10.1051/0004-6361/202038295
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1051/0004-6361/202038295
Verlag, lizenzpflichtig, Volltext: https://www.aanda.org/articles/aa/abs/2020/10/aa38295-20/aa38295-20.html
Get full text
Author Notes:C. Cifuentes, J.A. Caballero, M. Cortés-Contreras, D. Montes, F.J. Abellán, R. Dorda, G. Holgado, M.R. Zapatero Osorio, J.C. Morales, P.J. Amado, V.M. Passegger, A. Quirrenbach, A. Reiners, I. Ribas, J. Sanz-Forcada, A. Schweitzer, W. Seifert, and E. Solano
Description
Summary:Context: The relevance of M dwarfs in the search for potentially habitable Earth-sized planets has grown significantly in the last years. Aims: In our on-going effort to comprehensively and accurately characterise confirmed and potential planet-hosting M dwarfs, in particular for the CARMENES survey, we have carried out a comprehensive multi-band photometric analysis involving spectral energy distributions, luminosities, absolute magnitudes, colours, and spectral types, from which we have derived basic astrophysical parameters. Methods: We have carefully compiled photometry in 20 passbands from the ultraviolet to the mid-infrared, and combined it with the latest parallactic distances and close-multiplicity information, mostly from Gaia DR2, of a sample of 2479 K5 V to L8 stars and ultracool dwarfs, including 2210 nearby, bright M dwarfs. For this, we made extensive use of Virtual Observatory tools. Results: We have homogeneously computed accurate bolometric luminosities and effective temperatures of 1843 single stars, derived their radii and masses, studied the impact of metallicity, and compared our results with the literature. The over 40 000 individually inspected magnitudes, together with the basic data and derived parameters of the stars, individual and averaged by spectral type, have been made public to the astronomical community. In addition, we have reported 40 new close multiple systems and candidates (ρ < 3.3 arcsec) and 36 overluminous stars that are assigned to young Galactic populations. Conclusions: In the new era of exoplanet searches around M dwarfs via transit (e.g. TESS, PLATO) and radial velocity (e.g. CARMENES, NIRPS+HARPS), this work is of fundamental importance for stellar and therefore planetary parameter determination.
Item Description:Gesehen am 22.04.2021
Physical Description:Online Resource
ISSN:1432-0746
DOI:10.1051/0004-6361/202038295

Similar Items