English

Mid-Infrared Period$-$Luminosity Relations for Miras in the Large Magellanic Cloud

Solar and Stellar Astrophysics 2021-10-04 v2 Astrophysics of Galaxies

Abstract

We present the mid-infrared (mid-IR) period-luminosity relations (PLRs) using over 1000 Mira variables in the Large Magellanic Cloud (LMC), for the four Wide-Field Infrared Survey Explorer (WISE) and the four Spitzer bands. These PLRs cover a mid-IR wavelength range from 3.43.4 μ\mum to 2222 μ\mum and are presented separately for the oxygen-rich (O-rich) and carbon-rich (C-rich) Miras. These relations can be used to measure distances to individual O-rich and/or C-rich Mira stars with the accuracy of 5%5\% and 12%12\%, respectively. They are the most accurate Mira PLRs in the mid-IR to date.

Keywords

Cite

@article{arxiv.2012.12910,
  title  = {Mid-Infrared Period$-$Luminosity Relations for Miras in the Large Magellanic Cloud},
  author = {Patryk Iwanek and Igor Soszyński and Szymon Kozłowski},
  journal= {arXiv preprint arXiv:2012.12910},
  year   = {2021}
}

Comments

Accepted for publication in The Astrophysical Journal. 18 pages, 8 figures, 4 tables. The full machine readable Table 3 will be available in the online journal just after publication