Photometric distances to NGC 628 and its four companions

被引：68

作者：

Sharina, ME ^{[1
]}

Karachentsev, ID ^{[1
]}

Tikhonov, NA ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,SPECIAL ASTROPHYS OBSERV,STAVROPOL 357147,RUSSIA

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1996年 / 119卷 / 03期

关键词：

galaxies; NGC; 628; distances and redshifts; irregular;

D O I：

10.1051/aas:1996262

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Based on photometry of the brightest blue stars we derived distance moduli for NGC 628 and its dwarf irregular companions: DDO 13, UGC 1171, UGC 1104, and K 10. The mean modulus of the group is estimated to be 29.46 mag with a formal (internal) error of 0.11. The total mass to luminosity ratio of 40 M./L. seems sufficient for NGC 628 to keep its companions in bound orbits.

引用

页码：499 / 507

页数：9

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