Standardized Luminosity of the Tip of the Red Giant Branch Utilizing Multiple Fields in NGC 4258 and the CATs Algorithm

The tip of the red giant branch provides a luminous standard candle for calibrating distance ladders that reach Type Ia supernova (SN Ia) hosts. However, recent work reveals that tip measurements vary at the ∼0.1 mag level for different stellar populations and locations within a host, which may lead...

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Detalles Bibliográficos

Autores principales:	Siyang Li, Adam G. Riess, Daniel Scolnic, Gagandeep S. Anand, Jiaxi Wu, Stefano Casertano, Wenlong Yuan, Rachael Beaton, Richard I. Anderson
Formato:	Artigo
Lenguaje:	Inglês
Publicado:	IOP Publishing 2023-01-01
Colección:	The Astrophysical Journal
Materias:	Red giant stars Standard candles Stellar distance Hubble constant Observational cosmology Calibration
Acceso en línea:	https://doi.org/10.3847/1538-4357/acf4fb
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