Stellar Cluster Fiducial Sequences with the Advanced Camera for Surveys | Zendy

T. M. Brown | Zendy; Henry C. Ferguson | Zendy; E. Smith | Zendy; Puragra Guhathakurta | Zendy; Randy A. Kimble | Zendy; A. V. Sweigart | Zendy; A. Renzini | Zendy; R. Michael Rich | Zendy; Don A. VandenBerg | Zendy

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Stellar Cluster Fiducial Sequences with the Advanced Camera for Surveys

Author(s) -

T. M. Brown,

Henry C. Ferguson,

E. Smith,

Puragra Guhathakurta,

Randy A. Kimble,

A. V. Sweigart,

A. Renzini,

R. Michael Rich,

Don A. VandenBerg

Publication year - 2005

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/444542

Subject(s) - subgiant , globular cluster , physics , horizontal branch , advanced camera for surveys , astronomy , astrophysics , red giant branch , star cluster , stars , galaxy , metallicity , galaxy groups and clusters , red giant , open cluster , hubble space telescope , galaxy cluster

We present color-magnitude diagrams of five Galactic globular clusters andone Galactic open cluster spanning a wide range of metallicity (-2.1 < [Fe/H] <+0.3), as observed in the F606W (broad V) and F814W (I) bands with the AdvancedCamera for Surveys (ACS) on the Hubble Space Telescope. These clusters are partof two large ACS programs measuring the star formation history in the Andromedahalo, tidal stream, and outer disk. In these programs, the clusters serve asempirical isochrones and as calibrators for the transformation of theoreticalisochrones to the ACS bandpasses. To make these data more accessible to thecommunity, for each cluster, we provide a ridge line tracing the stars on themain sequence, subgiant branch, and red giant branch, plus the locus of starson the horizontal branch. In addition, we provide the transformation of theVictoria-Regina isochrones to the ACS bandpasses.Comment: 14 pages, 6 black & white figures, 1 color figure, latex. Accepted for publication in The Astronomical Journal. Figures 1-5 have been degraded to meet size restrictions. Smoothing of line art should be disabled in PDF viewers for correct display of figures. Full-resolution version and machine-readable tables available from T.M. Brown (tbrown@stsci.edu

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