The Space Telescope A901/902 Galaxy Evolution Survey (STAGES): probing environmental drivers of galaxy evolution with HST

Details The Space Telescope A901/902 Galaxy Evolution Survey (STAGES): probing environmental drivers of galaxy evolution with HST The Space Telescope A901/902 Galaxy Evolution Survey (STAGES): probing environmental drivers of galaxy evolution with HST

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.2202p&link_type=abstract

American Astronomical Society Meeting 207, #22.02; Bulletin of the American Astronomical Society, Vol. 37, p.1192

Astronomy and Astrophysics

Astronomy

Scientific paper

We introduce the Space Telescope A901/902 Galaxy Evolution Survey (STAGES, PI: M. E. Gray): a large ground- and space-based observational project to map the environment and galaxy properties of the A901/902 supercluster. Our mosaic of 80 ACS images obtained with the Hubble Space telescope in Cycle 13 spans a 0.5x0.5 degree region from the 17-passband COMBO-17 photometric redshift survey, encompassing a complex structure at z=0.17. With an extensive existing multi-wavelength dataset, we will probe the dependence of galaxy morphologies, star formation properties, and degree of AGN activity on local and large-scale environment. We can accurately separate the many layers composing the supercluster: the distributions of dark matter revealed by weak lensing maps; the hot intracluster medium from deep XMM-Newton imaging; and the local galaxy density using precision photometric redshifts from COMBO-17. The synthesis of these observations will provide an exceptional laboratory with which to address the influences of dark matter, hot X-ray gas, and galaxy-galaxy interactions on the evolution of the structural, spectral, and photometric properties of galaxies across a large dynamic range of environments from near-field densities to cluster cores.

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