Published October 2012
| Version Submitted + Published
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Template RR Lyrae Hα, Hβ, and Hγ Velocity Curves
Abstract
We present template radial velocity curves of ab-type RR Lyrae stars constructed from high-precision measurements of Hα, Hβ, and Hγ lines. Amplitude correlations between the Balmer line velocity curves, Johnson V band, and Sloan Digital Sky Survey (SDSS) g- and r-band light curves are also derived. Compared to previous methods, these templates and derived correlations reduce the uncertainty in measured systemic (center-of-mass) velocities of RR Lyrae stars by up to 15 km s^(–1), and will be of particular interest to wide-area spectroscopic surveys such as the SDSS and LAMOST Experiment for Galactic Understanding and Exploration.
Additional Information
© 2012 American Astronomical Society. Received 2012 July 9; accepted 2012 August 9; published 2012 September 13. B. S. acknowledges Judith G. Cohen, Shrinivas R. Kulkarni, and Carl J. Grillmair for their support, which was made possible by NSF Grants AST-0908139 (to J.G.C.) and AST-1009987 (to S.R.K.), and a NASA Grant (to C.J.G.). B. S. thanks George W. Preston for kindly providing his data that made this study possible.Attached Files
Published - 1538-3881_144_4_114.pdf
Submitted - 1208.1997v1.pdf
Files
1208.1997v1.pdf
Additional details
Identifiers
- Eprint ID
- 34987
- Resolver ID
- CaltechAUTHORS:20121019-104214124
Related works
- Describes
- http://arxiv.org/abs/1208.1997 (URL)
Funding
- NSF
- AST-0908139
- NSF
- AST-1009987
- NASA
Dates
- Created
-
2012-10-23Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field