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  The CARMENES search for exoplanets around M dwarfs: High-resolution optical and near-infrared spectroscopy of 324 survey stars

Reiners, A., Zechmeister, M., Caballero, J. A., Ribas, I., Morales, J. C., Jeffers, S. V., et al. (2018). The CARMENES search for exoplanets around M dwarfs: High-resolution optical and near-infrared spectroscopy of 324 survey stars. Astronomy and Astrophysics, 612: A49. doi:10.1051/0004-6361/201732054.

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Reiners, A., Author
Zechmeister, M., Author
Caballero, J. A., Author
Ribas, I., Author
Morales, J. C., Author
Jeffers, S. V., Author
Schöfer, P., Author
Tal-Or, L., Author
Quirrenbach, A., Author
Amado, P. J., Author
Kaminski, A., Author
Seifert, W., Author
Abril, M., Author
Aceituno, J., Author
Alonso-Floriano, F. J., Author
Ammler-von Eiff, Matthias1, Author              
Antona, R., Author
Anglada-Escudé, G., Author
Anwand-Heerwart, H., Author
Arroyo-Torres, B., Author
Azzaro, M., AuthorBaroch, D., AuthorBarrado, D., AuthorBauer, F. F., AuthorBecerril, S., AuthorBéjar, V. J. S., AuthorBenítez, D., AuthorBerdinas̃, Z. M., AuthorBergond, G., AuthorBlümcke, M., AuthorBrinkmöller, M., AuthorBurgo, C. del, AuthorCano, J., AuthorCárdenas Vázquez, M. C. , AuthorCasal, E., AuthorCifuentes, C., AuthorClaret, A., AuthorColomé, J., AuthorCortés-Contreras, M., AuthorCzesla, S., AuthorDíez-Alonso, E., AuthorDreizler, S., AuthorFeiz, C., AuthorFernández, M., AuthorFerro, I. M., AuthorFuhrmeister, B., AuthorGaladí-Enríquez, D., AuthorGarcia-Piquer, A., AuthorGarcía Vargas, M. L. , AuthorGesa, L., AuthorGómez Galera, V. , AuthorGonzález Hernández, J. I. , AuthorGonzález-Peinado, R., AuthorGrözinger, U., AuthorGrohnert, S., AuthorGuàrdia, J., AuthorGuenther, E. W., AuthorGuijarro, A., Authorde Guindos, E., AuthorGutiérrez-Soto, J., AuthorHagen, H.-J., AuthorHatzes, A. P., AuthorHauschildt, P. H., AuthorHedrosa, R. P., AuthorHelmling, J., AuthorHenning, Th., AuthorHermelo , I., AuthorHernández Arabí, R. , AuthorHernández Castaño, L. , AuthorHernández Hernando, F. , AuthorHerrero, E., AuthorHuber, A., AuthorHuke, P., AuthorJohnson, E. N., Authorde Juan, E., AuthorKim, M., AuthorKlein, R., AuthorKlüter, J., AuthorKlutsch, A., AuthorKürster, M., AuthorLafarga, M., AuthorLamert, A., AuthorLampón, M., AuthorLara, L. M., AuthorLaun, W., AuthorLemke, U., AuthorLenzen, R., AuthorLaunhardt, R., AuthorLópez del Fresno, M. , AuthorLópez-González, J., AuthorLópez-Puertas, M., AuthorLópez Salas, J. F. , AuthorLópez-Santiago, J., AuthorLuque, R., AuthorMagán Madinabeitia, H. , AuthorMall, U., AuthorMancini, L., AuthorMandel, H., AuthorMarfil, E., AuthorMarín Molina, J. A. , AuthorMaroto Fernández, D. , AuthorMartín, E. L., AuthorMartín-Ruiz, S., AuthorMarvin, C. J., AuthorMathar, R. J., AuthorMirabet, E., AuthorMontes, D., AuthorMoreno-Raya, M. E., AuthorMoya, A., AuthorMundt, R., AuthorNagel, E., AuthorNaranjo, V., AuthorNortmann, L., AuthorNowak, G., AuthorOfir, A., AuthorOreiro, R., AuthorPallé, E., AuthorPanduro, J., AuthorPascual, J., AuthorPassegger, V. M., AuthorPavlov, A., AuthorPedraz, S., AuthorPérez-Calpena, A., AuthorPérez Medialdea, D. , AuthorPerger, M., AuthorPerryman, M. A. C., AuthorPluto, M., AuthorRabaza, O., AuthorRamón, A., AuthorRebolo, R., AuthorRedondo, P., AuthorReffert, S., AuthorReinhart, S., AuthorRhode, P., AuthorRix, H.-W., AuthorRodler, F., AuthorRodríguez, E., AuthorRodríguez-López, C., AuthorRodríguez Trinidad, A. , AuthorRohloff, R.-R., AuthorRosich, A., AuthorSadegi, S., AuthorSánchez-Blanco, E., AuthorSánchez Carrasco, M. A. , AuthorSánchez-López, A., AuthorSanz-Forcada, J., AuthorSarkis, P., AuthorSarmiento, L. F., AuthorSchäfer, S., AuthorSchmitt, J. H. M. M., AuthorSchiller, J., AuthorSchweitzer, A., AuthorSolano, E., AuthorStahl, O., AuthorStrachan, J. B. P., AuthorStürmer, J., AuthorSuárez, J. C., AuthorTabernero, H. M., AuthorTala, M., AuthorTrifonov, T., AuthorTulloch, S. M., AuthorUlbrich, R. G., AuthorVeredas, G., AuthorVico Linares, J. I. , AuthorVilardell, F., AuthorWagner, K., AuthorWinkler, J., AuthorWolthoff, V., AuthorXu, W., AuthorYan, F., AuthorZapatero Osorio, M. R. , Author more..
1Department Solar and Stellar Interiors, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832287              


Free keywords: atlases / catalogs / stars: rotation / stars: late-type / stars: low-mass / infrared: stars
 Abstract: The CARMENES radial velocity (RV) survey is observing 324 M dwarfs to search for any orbiting planets. In this paper, we present the survey sample by publishing one CARMENES spectrum for each M dwarf. These spectra cover the wavelength range 520–1710 nm at a resolution of at least R >80 000, and we measure its RV, Hα emission, and projected rotation velocity. We present an atlas of high-resolution M-dwarf spectra and compare the spectra to atmospheric models. To quantify the RV precision that can be achieved in low-mass stars over the CARMENES wavelength range, we analyze our empirical information on the RV precision from more than 6500 observations. We compare our high-resolution M-dwarf spectra to atmospheric models where we determine the spectroscopic RV information content, Q, and signal-to-noise ratio. We find that for all M-type dwarfs, the highest RV precision can be reached in the wavelength range 700–900 nm. Observations at longer wavelengths are equally precise only at the very latest spectral types (M8 and M9). We demonstrate that in this spectroscopic range, the large amount of absorption features compensates for the intrinsic faintness of an M7 star. To reach an RV precision of 1 m s−1 in very low mass M dwarfs at longer wavelengths likely requires the use of a 10 m class telescope. For spectral types M6 and earlier, the combination of a red visual and a near-infrared spectrograph is ideal to search for low-mass planets and to distinguish between planets and stellar variability. At a 4 m class telescope, an instrument like CARMENES has the potential to push the RV precision well below the typical jitter level of 3–4 m s−1.


Language(s): eng - English
 Dates: 2019-04-032018
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1051/0004-6361/201732054
 Degree: -



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Title: Astronomy and Astrophysics
  Other : Astron. Astrophys.
Source Genre: Journal
Publ. Info: Les Ulis Cedex A France : EDP Sciences
Pages: - Volume / Issue: 612 Sequence Number: A49 Start / End Page: - Identifier: Other: 1432-0746
ISSN: 0004-6361
CoNE: https://pure.mpg.de/cone/journals/resource/954922828219_1