Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Montes Gutiérrez, David"'
It is clearly established that the Sun has an 11-yr cycle that is caused by its internal magnetic field. Such a cycle is also observed in a sample of M dwarfs. In the framework of exoplanet detection or atmospheric characterisation of exoplanets, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______126::6edff9ff01e7858238fd2dd716b1eced
https://eprints.ucm.es/id/eprint/77623/
https://eprints.ucm.es/id/eprint/77623/
Context. Statistical analyses based on Kepler data show that most of the early-type M dwarfs host multi-planet systems consisting of Earth- to sub-Neptune-sized planets with orbital periods of up to ∼250 days, and that at least one such planet is l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______126::464daea81588e54a59b7521374a0a379
https://eprints.ucm.es/id/eprint/76495/
https://eprints.ucm.es/id/eprint/76495/
Autor:
Montes Gutiérrez, David, Tabernero Guzmán, Hugo Martín, Gutiérrez Albarrán, M.L., Jiménez Esteban, F. M., otros, ...
Context. In the last 15 years different ground-based spectroscopic surveys have been started (and completed) with the general aim of delivering stellar parameters and elemental abundances for large samples of Galactic stars, complementing Gaia astrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______126::009f85cb0a74d583f68aff0701fab2ed
https://eprints.ucm.es/id/eprint/75791/
https://eprints.ucm.es/id/eprint/75791/
Context. The Gaia-ESO Public Spectroscopic Survey is an ambitious project designed to obtain astrophysical parameters and elemental abundances for 100000 stars, including large representative samples of the stellar populations in the Galaxy, and a we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______126::93719a00148edebf20f0a119cc0a4c41
https://eprints.ucm.es/id/eprint/75844/
https://eprints.ucm.es/id/eprint/75844/
We report the discovery of a multiplanetary system transiting the M0 V dwarf HD 260655 (GJ 239, TOI-4599). The system consists of at least two transiting planets, namely HD 260655 b, with a period of 2.77 d, a radius of R_(b) = 1.240 ± 0.023 R_(ꚛ)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______126::8953a563cbb878727a94c873355fa29f
https://eprints.ucm.es/id/eprint/75756/
https://eprints.ucm.es/id/eprint/75756/
Context. Current exoplanet surveys using the radial velocity (RV) technique are targeting M dwarfs because any habitable zone terrestrial-mass planets will induce a high RV and orbit on shorter periods than for more massive stars. One of the main cav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______126::69716b7c7d64ad4c95140f7fae0bf570
https://eprints.ucm.es/id/eprint/75539/
https://eprints.ucm.es/id/eprint/75539/
Stellar dynamos generate magnetic fields that are of fundamental importance to the variability and evolution of Sun-like and low-mass stars, and for the development of their planetary systems. As a key to understanding stellar dynamos, empirical rela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______126::c5d2ad0dffb7b36b6ee6bfd807eff735
https://eprints.ucm.es/id/eprint/75536/
https://eprints.ucm.es/id/eprint/75536/
Autor:
Caballero, J. A., Cortés Contreras, Miriam, Domínguez Fernández, A.J., Montes Gutiérrez, David
Publikováno v:
E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
We have corrected an error in Passegger et al. (2019) in the calculation of the stellar surface gravity log g from literature masses and radii provided by Gaidos & Mann (2014) and Mann et al. (2015).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::251c9209d93410dc626827d521049336
https://eprints.ucm.es/id/eprint/59872/1/cortescontreras27libre.pdf
https://eprints.ucm.es/id/eprint/59872/1/cortescontreras27libre.pdf
Publikováno v:
E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
The study of contemporaneous variations of the continuum flux and emission lines is of great importance to understand the different astrophysical processes at work in T Tauri stars. In this paper we present the results of a simultaneous BV RI and Hα
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::0a98297628f7f573f8eebcf5b65a541b
https://eprints.ucm.es/55333/
https://eprints.ucm.es/55333/
Publikováno v:
E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
We present a homogeneous study of chromospheric and coronal flux–flux relationships using a sample of 298 late-type dwarf active stars with spectral types F to M. The chromospheric lines were observed simultaneously in each star to avoid spread as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::89dff2e116a8165c229a448e19f183f6
https://eprints.ucm.es/37797/
https://eprints.ucm.es/37797/