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astro-ph.GA2026
CosmoVerse Data Challenge: How Tip of the Red Giant Branch Analysis Choices Shape the Inferred Hubble Constant
Siyang Li, Eleonora Di Valentino, Jackson Levi Said +62
Tip of the red giant branch (TRGB)-based determinations of the Hubble constant (), the current expansion rate of the Universe, depend on choices made in selecting and analyzin…
astro-ph.GA2026
CHASE Spectral Survey I: Measuring Contamination in the Color-selected J-region Asymptotic Giant Branch Distance Indicator
Siyang Li, Alexei V. Filippenko, Arief Ahmad +11
The J-region asymptotic giant branch (JAGB) method for distance measurements uses the near uniform luminosity of carbon-rich AGB stars as a standard candle. Its application rests o…