BV-CCD PHOTOMETRY OF THE LOW-LATITUDE GLOBULAR-CLUSTER NGC-5946

被引：6

作者：

ALCAINO, G ^{[1
]}

LILLER, W ^{[1
]}

ALVARADO, F ^{[1
]}

WENDEROTH, E ^{[1
]}

机构：

[1] MINIST EDUC CHILE,INST ISAAC NEWTON,SANTIAGO,CHILE

来源：

ASTRONOMICAL JOURNAL | 1991年 / 102卷 / 04期

关键词：

D O I：

10.1086/115962

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present BV CCD photometry of the previously unstudied, highly concentrated, low galactic latitude globular cluster NGC 5946 observed with the 2.2 m Max-Planck-Institut telescope at ESO/La Silla. The photometry extends to V approximately 21.5 reaching about 4 mag below the brighter edge of the horizontal branch. The horizontal branch extends continuously from blue to red color indices in the magnitude range 17.0 < V < 18.5. The adopted reddening of E(B - V) = 0.53 +/- 0.05 places the cluster at 10.7 kpc from the Sun and 5.8 kpc from the galactic center, assuming R0 = 8.5 kpc. Indications are that the cluster is more metal-poor than previously believed.

引用

页码：1371 / 1380

页数：10

共 25 条

[1] PHOTOELECTRIC UBVRI SEQUENCES IN THE REGION OF THE GALACTIC GLOBULAR-CLUSTERS NGC-288, NGC-1851, NGC-1904, NGC-4590, NGC-4833, NGC-5946, NGC-6139, AND NGC-7099 [J].