Small-amplitude Red Giants Elucidate the Nature of the Tip of the Red Giant Branch as a Standard Candle

Small-amplitude Red Giants Elucidate the Nature of the Tip of the Red Giant Branch as a Standard Candle

The tip of the red giant branch (TRGB) is an important standard candle for determining luminosity distances. Although several 10 ^5 small-amplitude red giant stars (SARGs) have been discovered, variability was previously considered irrelevant for the TRGB as a standard candle. Here, we show that all...

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Bibliographic Details
Main Authors: Richard I. Anderson, Nolan W. Koblischke, Laurent Eyer
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal Letters
Subjects:
Standard candles
Stellar distance
Red giant tip
Pulsating variable stars
Giant stars
Hubble constant
Online Access:https://doi.org/10.3847/2041-8213/ad284d

Internet

https://doi.org/10.3847/2041-8213/ad284d

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