Optical Through Mid-infrared Period-luminosity Relations Of Rr Lyrae Stars

Details Optical Through Mid-infrared Period-luminosity Relations Of Rr Lyrae Stars Optical Through Mid-infrared Period-luminosity Relations Of Rr Lyrae Stars

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21910405k&link_type=abstract

American Astronomical Society, AAS Meeting #219, #104.05

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For more than a century RR Lyrae pulsating variable stars have been reliable distance indicators. Originally termed cluster variables, as our technological capabilities to observe their light curves with greater precision, improved temporal resolution, and expanded wavelength coverage advanced, these horizontal branch pulsators have continued to provide increasingly accurate distance measurements. Here we present very well observed local RR Lyrae variables with photometric data at wavebands ranging from 0.36 to 12 µm (optical: UBVR, near-infrared: JHK, mid-infrared: WISE W1, W2, W3). In total our data spans 103 RR Lyrae variables; 12 of which have complete U-W3 coverage, 10 have U-K, and 14 have J-W3. We calibrate the RR Lyrae period-luminosity relations simultaneously in all 10 wavebands with a Bayesian linear model fit.

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