VizieR Online Data Catalog: Theoretical scenario for RR Lyrae in Gaia (Marconi+, 2021)
Abstract
An extensive set of non-linear convective pulsation models for RR Lyrae at different metal and helium abundances has been taken into account. The transformation of bolometric magnitude variations into the Gaia filters allowed us to derive the first theoretical light curves directly comparable with Gaia time-series data. In particular, we built the first theoretical Bailey diagrams and Period-Wesenheit (PW) relations in the GBP, G, and GRP filters, varying both the metallicity and the helium content. As for the Bailey diagram, we conclude that an increase in the metal abundance and/or in the helium abundance produces a decrease in the pulsation amplitudes, whereas an increase in the luminosity level produces a period shift towards longer values.
(3 data files).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- October 2023
- Bibcode:
- 2023yCat..75005009M
- Keywords:
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- Stars: variable;
- Abundances: [Fe/H];
- Abundances: peculiar;
- Effective temperatures;
- Parallaxes: trigonometric;
- Models;
- Optical