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 conferenciarevisión exhaustiva

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
DOI
EstadoPublicada - 2013
EventoConference on Hot Planets and Cool Stars - Garching, Alemania
Duración: 12 nov 201216 nov 2012

Serie de la publicación

NombreEPJ Web of Conferences
Volumen47
ISSN (versión impresa)2101-6275
ISSN (versión digital)2100-014X

Otros

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

Áreas temáticas de ASJC Scopus

  • Física y astronomía (todo)

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