THE TIP OF THE RED GIANT BRANCH AS A DISTANCE INDICATOR FOR RESOLVED GALAXIES

被引：614

作者：

LEE, MG ^{[1
]}

FREEDMAN, WL ^{[1
]}

MADORE, BF ^{[1
]}

机构：

[1] CALTECH,JET PROPULS LAB,CTR INFRARED PROC & ANAL,NASA,IPAC EXTRAGALACT DATABASE,PASADENA,CA 91101

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 417卷 / 02期

关键词：

CEPHEIDS; GALAXIES; DISTANCES AND REDSHIFTS; HERTZSPRUNG-RUSSELL (H-R) DIAGRAM; STARS; DISTANCES; EVOLUTION; GIANTS;

D O I：

10.1086/173334

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 of the TRGB method are discussed.

引用

页码：553 / 559

页数：7

共 45 条

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