RR Lyrae Visual to Infrared Absolute Magnitude Calibrations. In the light of Gaia DR3

K. Looijmans; J. Lub; A. G. A. Brown

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arXiv · 2303.02211

RR Lyrae Visual to Infrared Absolute Magnitude Calibrations. In the light of Gaia DR3

K. Looijmans·J. Lub·A. G. A. Brown

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Abstract

A probabilistic approach has been used in combination with the parallax data from Gaia (e)DR3 to calibrate Period-Luminosity-(Abundance) (PLZ) Relations covering a wide range of visual to Infrared observations of RR Lyrae stars. Absolute Magnitude Relations are given, derived from the same selection of stars, for $V$, $G$, $I$, $K_\mathrm{s}$ and WISE $W1$ as well as for for the reddening free pseudo-magnitudes $WBV$, $WVI$ and finally also Gaia $WG$. The classical relation between $M_V$ and [Fe/H] is redetermined and as an illustration distances are given to a few selected objects.

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K. Looijmans, J. Lub, A. G. A. Brown. 2023-03-03. RR Lyrae Visual to Infrared Absolute Magnitude Calibrations. In the light of Gaia DR3. https://arxiv.org/abs/2303.02211

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