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arxiv: 0711.2016 · v1 · submitted 2007-11-13 · 🌌 astro-ph

The Tip of the Red Giant Branch

M. Bellazzini (INAF-Oabo) This is my paper
classification 🌌 astro-ph
keywords branchcalibrationgiantaccountagreementbandscalibrationscandle
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I review the latest results on the calibration of the Tip of the Red Giant Branch as a standard candle, in the optical and in the near infrared. The agreement among different and independent empirical calibrations is rather good, if all the uncertainties are taken into account. The possible extension of the calibration to SDSS photometric bands (i,z) is also discussed.

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Cited by 2 Pith papers

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  1. How Robust is the Cosmic Distance with Tip of Red Giant Branch against Stellar Population Variations?

    astro-ph.GA 2026-04 conditional novelty 5.0

    Synthetic stellar population models show TRGB luminosity varies by at most 0.028 mag from typical changes in alpha enhancement, age, and helium at fixed metallicity, confirming its robustness as a distance indicator.

  2. The Chicago Carnegie Hubble Program: Improving the Calibration of SNe Ia with JWST Measurements of the Tip of the Red Giant Branch

    astro-ph.GA 2025-03 unverdicted novelty 5.0

    JWST TRGB distances to 10 SN Ia hosts update calibrations for 11 SNe yielding H0 of 68.4-69.6 km/s/Mpc and show modest shifts when combined with prior HST data.