eCite Digital Repository
The ACS nearby galaxy survey treasury
Citation
Dalcanton, JJ and Williams, BF and Seth, AC and Dolphin, A and Holtzman, J and Rosema, K and Skillman, ED and Cole, AA and Girardi, L and Gogarten, SM and Karachentsev, ID and Olsen, K and Weisz, D and Christennsen, C and Freeman, K and Gilbert, K and Gallart, C and Harris, J and Hodge, P and De Jong, R and Karachentseva, V and Mateo, M and Stetson, PB and Tavarez, M and Zaritsky, D and Governato, F and Quinn, T, The ACS nearby galaxy survey treasury, Astrophysical Journal. Supplement Series, 183, (1) pp. 67-108. ISSN 0067-0049 (2009) [Refereed Article]
Copyright Statement
http://www.press.uchicago.edu
Official URL: http://www.press.uchicago.edu
DOI: doi:10.1088/0067-0049/183/1/67
Abstract
The ACS Nearby Galaxy Survey Treasury (ANGST) is a systematic survey to establish a legacy of uniform multicolor
photometry of resolved stars for a volume-limited sample of nearby galaxies (D < 4Mpc). The survey volume
encompasses 69 galaxies in diverse environments, including close pairs, small and large groups, filaments, and truly
isolated regions. The galaxies include a nearly complete range of morphological types spanning a factor of ¡104 in
luminosity and star formation rate. The survey data consist of images taken with the Advanced Camera for Surveys
(ACS) on the Hubble Space Telescope (HST), supplemented with archival data and new Wide Field Planetary
Camera 2 (WFPC2) imaging taken after the failure of ACS. Survey images include wide field tilings covering the
full radial extent of each galaxy, and single deep pointings in uncrowded regions of the most massive galaxies in
the volume. The new wide field imaging in ANGST reaches median 50% completenesses of mF475W =28.0 mag,
mF606W=27.3 mag, and mF814W=27.3 mag, several magnitudes below the tip of the red giant branch (TRGB). The
deep fields reach magnitudes sufficient to fully resolve the structure in the red clump. The resulting photometric
catalogs are publicly accessible and contain over 34 million photometric measurements of >14 million stars. In
this paper we present the details of the sample selection, imaging, data reduction, and the resulting photometric
catalogs, along with an analysis of the photometric uncertainties (systematic and random), for bothACS and WFPC2
imaging.We also present uniformly derived relative distances measured from the apparent magnitude of the TRGB.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | catalogs – galaxies: formation – galaxies: stellar content – surveys |
| Research Division: | Physical Sciences |
| Research Group: | Astronomical sciences |
| Research Field: | Cosmology and extragalactic astronomy |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the physical sciences |
| UTAS Author: | Cole, AA (Professor Andrew Cole) |
| ID Code: | 71039 |
| Year Published: | 2009 |
| Web of Science® Times Cited: | 410 |
| Deposited By: | Physics |
| Deposited On: | 2011-07-07 |
| Last Modified: | 2011-07-07 |
| Downloads: | 0 |
Repository Staff Only: item control page