SIMBAD references

2019AJ....158..105L - Astron. J., 158, 105-105 (2019/September-0)

Infrared K-band photometry of field RR Lyrae variable stars.


Abstract (from CDS):

We present multi-epoch infrared photometry in the Ks-band for 74 bright RR Lyrae variable stars tied directly to the Two-Micron All-Sky Survey (2MASS) photometric system. We systematize additional K-band photometry from the literature to the 2MASS system and combine it to obtain photometry for 146 RR Lyrae stars on a consistent, modern system. A set of outlier stars in the literature photometry is identified and discussed. Reddening estimates for each star are gathered from the literature and combined to provide an estimate of the interstellar absorption affecting each star, and we find excellent agreement with another source in the literature. We utilize trigonometric parallaxes from the Second Data Release of the European Space Agency's Gaia astrometric satellite to determine the absolute magnitude, MKs_ for each of these stars, and analyze them using the astrometry-based luminosity prescription to obtain a parallax-based calibration of MK(RR). Our period-luminosity-metallicity relationship is MKs_=(-2.8±0.2)(logP+0.27) + (0.12 ± 0.02) ([Fe/H] + 1.3) - (0.41 ± 0.03) mag. A Gaia global zero-point error of πzp = -0.042 ± 0.013 mas is determined for this sample of RR Lyrae stars.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): methods: statistical - stars: distances - stars: fundamental parameters - stars: variables: RR Lyrae

VizieR on-line data: <Available at CDS (J/AJ/158/105): table1.dat table3.dat table4.dat table5.dat table7.dat>

Simbad objects: 152

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2019AJ....158..105L and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact