STAGES: the Space Telescope A901/2 Galaxy Evolution Survey

Meghan E. Gray, Christian Wolf, Marco Barden, Chien Y. Peng, Boris Haeussler, Eric F. Bell, Daniel H. McIntosh, Yicheng Guo, John A. R. Caldwell, David Bacon, Michael Balogh, Fabio D. Barazza, Asmus Boehm, Catherine Heymans, Knud Jahnke, Shardha Jogee, Eelco van Kampen, Kyle Lane, Klaus Meisenheimer, Sebastian F. SanchezAndy Taylor, Lutz Wisotzki, Xianzhong Zheng, David A. Green, R. J. Beswick, D. J. Saikia, Rachel Gilmour, Benjamin D. Johnson, Casey Papovich

Research output: Contribution to journalLiterature reviewpeer-review

Abstract / Description of output

We present an overview of the Space Telescope A901/2 Galaxy Evolution Survey (STAGES). STAGES is a multiwavelength project designed to probe physical drivers of galaxy evolution across a wide range of environments and luminosity. A complex multicluster system at z similar to 0.165 has been the subject of an 80-orbit F606W Hubble Space Telescope (HST)/Advanced Camera for Surveys (ACS) mosaic covering the full 0 degrees.5 x 0 degrees.5 (similar to 5 x 5 Mpc(2)) span of the supercluster. Extensive multiwavelength observations with XMM-Newton, GALEX, Spitzer, 2dF, Giant Metrewave Radio Telescope and the 17-band COMBO-17 photometric redshift survey complement the HST imaging. Our survey goals include simultaneously linking galaxy morphology with other observables such as age, star formation rate, nuclear activity and stellar mass. In addition, with the multiwavelength data set and new high-resolution mass maps from gravitational lensing, we are able to disentangle the large-scale structure of the system. By examining all aspects of an environment we will be able to evaluate the relative importance of the dark matter haloes, the local galaxy density and the hot X-ray gas in driving galaxy transformation. This paper describes the HST imaging, data reduction and creation of a master catalogue. We perform the Sersic fitting on the HST images and conduct associated simulations to quantify completeness. In addition, we present the COMBO-17 photometric redshift catalogue and estimates of stellar masses and star formation rates for this field. We define galaxy and cluster sample selection criteria, which will be the basis for forthcoming science analyses, and present a compilation of notable objects in the field. Finally, we describe the further multiwavelength observations and announce public access to the data and catalogues.

Original languageEnglish
Pages (from-to)1275-1301
Number of pages27
JournalMonthly Notices of the Royal Astronomical Society
Volume393
Issue number4
DOIs
Publication statusPublished - 11 Mar 2009

Keywords / Materials (for Non-textual outputs)

  • surveys
  • galaxies: clusters: general
  • galaxies: evolution
  • MORPHOLOGY-DENSITY RELATION
  • STAR-FORMATION RATE
  • LUMINOUS INFRARED GALAXIES
  • DIGITAL SKY SURVEY
  • SPECTRAL ENERGY-DISTRIBUTIONS
  • LARGE-SCALE STRUCTURE
  • DEEP-FIELD-SOUTH
  • STELLAR MASS
  • ENVIRONMENTAL DEPENDENCE
  • FORMATION RATES

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