| Issue |
A&A
Volume 689, September 2024
|
|
|---|---|---|
| Article Number | A138 | |
| Number of page(s) | 18 | |
| Section | Cosmology (including clusters of galaxies) | |
| DOI | https://doi.org/10.1051/0004-6361/202450364 | |
| Published online | 09 September 2024 | |
Period-luminosity and period-luminosity-metallicity relations for Galactic RR Lyrae stars in the Sloan bands⋆
1
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Bartycka 18, 00-716 Warszawa, Poland
2
Universidad de Concepción, Departamento de Astronomía, Casilla 160-C, Concepción, Chile
3
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Rabiańska 8, 87-100 Toruń, Poland
Received:
13
April
2024
Accepted:
22
May
2024
Context. RR Lyrae stars are excellent tracers of the old population II due to their period-luminosity (PL) and period-luminosity-metallicity (PLZ) relations. While these relations have been investigated in detail in many photometric bands, there are few comprehensive studies about them in Sloan-like systems.
Aims. We present PL and PLZ relations (as well as their counterparts in Wesenheit magnitudes) in the Sloan–Pan-STARSS gP1rP1iP1 bands obtained for Galactic RR Lyrae stars in the vincinity of the Sun.
Methods. The data used in this paper were collected with the network of 40 cm telescopes of the Las Cumbres Observatory, and geometric parallaxes were adopted from Gaia Data Release 3.
Results. We derived PL and PLZ relations separately for RRab and RRc-type stars, as well as for the mixed population of RRab+RRc stars.
Conclusions. To our knowledge, these are the first PL and PLZ relations in the Sloan bands determined using RR Lyrae stars in the Galactic field.
Key words: stars: variables: RR Lyrae / solar neighborhood / distance scale
© The Authors 2024
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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