| Title | The Tip of the Red Giant Branch as a Distance Indicator for Resolved Galaxies |
| Authors | Lee, Myung Gyoon; Freedman, Wendy L.; Madore, Barry F. |
| Bibcode | 1993ApJ...417..553L Search ADS ↗ |
| Abstract | We show that the I magnitude of the tip of the first-ascent red giant branch (TRGB) of low-mass stars is a distance indicator for resolved galaxies with metal-poor ([Fe/H] < -0.7 dex) old populations, having a precision comparable to primary distance indicators such as Cepheids and RR Lyraes. A comparison of the distances to resolved galaxies based on the TRGB with those derived from Cepheids and RR Lyraes shows that they agree within ‰0.1 mag. Advantages o{ the TRGB method are discussed. |
| Objects | 10 Objects Search NED ↙ |
