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A survey of M stars in the field of view of Kepler space telescope

Published online by Cambridge University Press:  10 November 2011

Mahmoudreza Oshagh
Affiliation:
Centro de Astrofí sica, Faculdade de Ciências, Universidade do Porto, Rua das Estrelas, 4150–762 Porto, Portugal email: [email protected]
Nader Haghighipour
Affiliation:
Institute for Astronomy and NASA Astrobiology Institute, University of Hawaii-Manoa, 2680 Woodlawn Drive, Honolulu, HI 96822, USA
Nuno C. Santos
Affiliation:
Centro de Astrofí sica, Faculdade de Ciências, Universidade do Porto, Rua das Estrelas, 4150–762 Porto, Portugal email: [email protected]
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Abstract

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M dwarfs constitute more than 70% of the stars in the solar neighborhood. They are cooler and smaller than Sun-like stars and have less-massive disks which suggests that planets around these stars are more likely to be Neptune-size or smaller. The transit depths and transit times of planets around M stars are large and well-matched to the Kepler temporal resolution. As a result, M stars have been of particular interest for searching for planets in both radial velocity and transit photometry surveys. We have recently started a project on searching for possible planet-hosting M stars in the publicly available data from Kepler space telescope. We have used four criteria, namely, the magnitude, proper motion, H-Ks and J-H colors, and searched for M stars in Q0 and Q1 data sets. We have been able to find 108 M stars among which 54 had not been previously identified among Kepler's targets. We discuss the details of our selection process and present the results.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

References

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