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Identifying Remote Halo Giants in High-Latitude Fields with Kepler 2

Published online by Cambridge University Press:  09 May 2016

Ruth C. Peterson
Ruth C. Peterson*
Affiliation:
SETI Institute, 189 N Bernardo Ave, Mountain View, CA 94043
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Abstract

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This work sketches how SDSS ugr colors and Kepler 2 in halo fields can identify red giants 50 – 100 kpc distant with minimal metallicity bias. For these mildly-reddened, metal-poor giants, (g-r)o yields the effective temperature Teff to 100 K. K2 can detect the p-mode oscillations of red giants and measure their frequency of maximum power νmax. This sets the luminosity Lbol and thus the distance, plus an estimate of metallicity [Fe/H].

Keywords

Galaxy: haloGalaxy: stellar contentstars: abundancesstars: atmospheresstars: distancesstars: Population IItechniques: photometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Issue S317: The General Assembly of Galaxy Halos: Structure, Origin and Evolution , August 2015 , pp. 342 - 343
Copyright
Copyright © International Astronomical Union 2016 

References

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