| Issue |
EPJ Web of Conferences
Volume 47, 2013
Hot Planets and Cool Stars
|
|
|---|---|---|
| Article Number | 09004 | |
| Number of page(s) | 4 | |
| Section | Characterization of Host Stars | |
| DOI | https://doi.org/10.1051/epjconf/20134709004 | |
| Published online | 25 April 2013 | |
https://doi.org/10.1051/epjconf/20134709004
K-band spectroscopic metallicities and temperatures of M-dwarf stars
Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, USA
a e-mail: babs@amnh.org
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.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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