K-band spectroscopic metallicities and temperatures of M-dwarf stars

Bárbara Rojas-Ayala

Resultado de la investigación: Contribución a los tipos de informe/libroContribución a la conferencia

Resumen

I present the metallicity and effective temperature techniques developed for M dwarf stars by Rojas-Ayala et al. (2010, 2012). These techniques are based on absorption features present in the modest resolution K-band spectra (R∼2700) of M dwarfs and have been calibrated using FGK+M dwarf pairs and synthetic atmosphere models. The H2O-K2 index seems to overestimate the effective temperatures of M dwarfs when compared to interferometric measurements. The metallicity distribution of the M dwarf host candidates by the Kepler Mission hints that jovian-size planets form preferentially around solar and super-solar metallicity environments, while small rocky planet host exhibit a wide range of metallicities, just like in their solar-type counterparts.

Idioma originalInglés
Título de la publicación alojadaHot Planets and Cool Stars
Volumen47
DOI
EstadoPublicada - 2013
EventoConference on Hot Planets and Cool Stars - Garching, Alemania
Duración: 12 nov 201216 nov 2012

Otros

OtrosConference on Hot Planets and Cool Stars
PaísAlemania
CiudadGarching
Período12/11/1216/11/12

Áreas temáticas de ASJC Scopus

  • Física y astronomía (todo)

Huella Profundice en los temas de investigación de 'K-band spectroscopic metallicities and temperatures of M-dwarf stars'. En conjunto forman una huella única.

  • Citar esto

    Rojas-Ayala, B. (2013). K-band spectroscopic metallicities and temperatures of M-dwarf stars. En Hot Planets and Cool Stars (Vol. 47). [09004] https://doi.org/10.1051/epjconf/20134709004