The ACS Survey of Globular Clusters. v. generating a comprehensive star catalog for each cluster

被引：284

作者：

Anderson, Jay ^{[1
]}

Sarajedini, Ata ^{[2
]}

Bedin, Luigi R. ^{[1
]}

King, Ivan R. ^{[3
]}

Piotto, Giampaolo ^{[4
]}

Reid, I. Neill ^{[1
]}

Siegel, Michael ^{[5
]}

Majewski, Steven R. ^{[6
]}

Paust, Nathaniel E. Q. ^{[1
]}

Aparicio, Antonio ^{[7
]}

Milone, Antonino P. ^{[4
]}

Chaboyer, Brian ^{[8
]}

Rosenberg, Alfred ^{[7
]}

机构：

[1] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[2] Univ Florida, Dept Astron, Gainesville, FL 32611 USA

[3] Univ Washington, Dept Astron, Seattle, WA 98195 USA

[4] Univ Padua, Dipartimento Astron, I-35122 Padua, Italy

[5] Univ Texas Austin, McDonald Observ, Austin, TX 78712 USA

[6] Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA

[7] Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain

[8] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA

来源：

ASTRONOMICAL JOURNAL | 2008年 / 135卷 / 06期

关键词：

catalogs; globular clusters : general; techniques : image processing; techniques : photometric;

D O I：

10.1088/0004-6256/135/6/2055

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The ACS Survey of Globular Clusters has used Hubble Space Telescope's Wide-Field Channel to obtain uniform imaging of 65 of the nearest globular clusters to provide an extensive homogeneous data set for a broad range of scientific investigations. The survey goals required not only a uniform observing strategy, but also a uniform reduction strategy. To this end, we designed a sophisticated software program to process the cluster data in an automated way. The program identifies stars simultaneously in the multiple dithered exposures for each cluster and measures them using the best available point-spread function models. We describe here in detail the program's rationale, algorithms, and output. The routine was also designed to perform artificial-star tests, and we ran a standard set of similar to 10(5) tests for each cluster in the survey. The catalog described here will be exploited in a number of upcoming papers and will eventually be made available to the public via the World Wide Web.

引用

页码：2055 / 2073

页数：19

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