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The Hubble Space Telescope Advanced Camera for Surveys Coma Cluster Survey. I. Survey objectives and design

Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., Balcells, Marc, Batcheldor, Dan, Bridges, Terry J., Davies, Jonathan Ivor, Erwin, Peter, Graham, Alister W., Guzmán, Rafael, Hammer, Derek, Hornschemeier, Ann, Hoyos, Carlos, Hudson, Michael J., Huxor, Avon, Jogee, Shardha, Komiyama, Yutaka, Lotz, Jennifer, Lucey, John R., Marzke, Ronald O., Merritt, David, Miller, Bryan W., Miller, Neal A., Mouhcine, Mustapha, Okamura, Sadanori, Peletier, Reynier F., Phillipps, Steven, Poggianti, Bianca M., Sharples, Ray M., Smith, Russell J., Trentham, Neil, Tully, R. Brent, Valentijn, Edwin and Verdoes Kleijn, Gijs 2008. The Hubble Space Telescope Advanced Camera for Surveys Coma Cluster Survey. I. Survey objectives and design. Astrophysical Journal Supplement Series 176 (2) , pp. 424-437. 10.1086/533439

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Abstract

We describe the HST ACS Coma Cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma Cluster (Abell 1656). The survey was designed to cover an area of 740 arcmin2 in regions of different density of both galaxies and intergalactic medium within the cluster. The ACS failure of 2007 January 27 leaves the survey 28% complete, with 21 ACS pointings (230 arcmin2) complete, and partial data for a further four pointings (44 arcmin2). The predicted survey depth for 10 σ detections for optimal photometry of point sources is g' = 27.6 in the F475W filter and IC = 26.8 mag in F814 (AB magnitudes). Initial simulations with artificially injected point sources show 90% recovered at magnitude limits of g' = 27.55 and IC = 26.65. For extended sources, the predicted 10 σ limits for a 1 arcsec2 region are g' = 25.8 mag arcsec−2 and IC = 25.0 mag arcsec−2. We highlight several motivating science goals of the survey, including study of the faint end of the cluster galaxy luminosity function, structural parameters of dwarf galaxies, stellar populations and their effect on colors and color gradients, evolution of morphological components in a dense environment, the nature of ultracompact dwarf galaxies, and globular cluster populations of cluster galaxies of a range of luminosities and types. This survey will also provide a local rich cluster benchmark for various well-known global scaling relations and explore new relations pertaining to the nuclear properties of galaxies.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: galaxies: clusters: individual (Abell 1656); galaxies: fundamental parameters; galaxies: luminosity function, mass function; galaxies: photometry; galaxies: stellar content; galaxies: structure
Publisher: IOP Science
ISSN: 0067-0049
Last Modified: 04 Jun 2017 04:06
URI: http://orca-mwe.cf.ac.uk/id/eprint/32872

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