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Population II Distance Indicators: RR Lyrae Variables, Tip of the Red Giant Branch (TRGB) Stars and J-Branch Asymptotic Giant Branch (JAGB/Carbon) Stars

Authors :
Madore, Barry F.
Freedman, Wendy L.
Publication Year :
2023

Abstract

We review the theoretical underpinnings, evolutionary status, calibrations and current applications of three bright Population II extragalactic distance indicators: Tip of the Red Giant Branch (TRGB) stars, RR Lyrae variables and J-Branch Asymptotic Giant Branch (JAGB/Carbon) stars. For M_I (TRGB) = -4.05 mag the Hubble constant is determined to be Ho = 69.8 +/- 0.6 (stat) +/-1.6 (sys) km/s/Mpc.<br />Comment: Invited review, Canary Islands, 2023

Subjects

Subjects :
Astrophysics - Solar and Stellar Astrophysics
Astrophysics - Astrophysics of Galaxies

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2305.19437
Document Type :
Working Paper

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