High-precision 2MASS JHKs light curves and other data for RR LYRAE star SDSS J015450 + 001501: Strong constraints for nonlinear pulsation models

Róbert Szabó, Željko Ivezić, László L. Kiss, Zoltán Kolláth, Lynne Jones, Branimir Sesar, Andrew C. Becker, James R.A. Davenport, Roc M. Cutri

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We present and discuss an extensive data set for the non-Blazhko ab-type RR Lyrae star SDSS J015450+001501, including optical Sloan Digital Sky Survey ugriz light curves and spectroscopic data, LINEAR and Catalina Sky Survey unfiltered optical light curves, and infrared Two Micron All Sky Survey (2MASS) JHKs and Wide-field Infrared Survey Explorer W1 and W2 light curves. Most notable is that light curves obtained by 2MASS include close to 9000 photometric measures collected over 3.3 yr and provide an exceedingly precise view of near-infrared variability. These data demonstrate that static atmosphere models are insufficient to explain multiband photometric light-curve behavior and present strong constraints for nonlinear pulsation models for RR Lyrae stars. It is a challenge to modelers to produce theoretical light curves that can explain data presented here, which we make publicly available.

Original languageEnglish
Article number92
JournalAstrophysical Journal
Volume780
Issue number1
DOIs
Publication statusPublished - Jan 1 2014

Keywords

  • infrared: stars
  • stars: atmospheres
  • stars: oscillations
  • stars: variables: RR Lyrae
  • techniques: photometric

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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