HST Imaging of UV emission in Quiescent Early-type Galaxies

Details HST Imaging of UV emission in Quiescent Early-type Galaxies HST Imaging of UV emission in Quiescent Early-type Galaxies

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hst..prop11158r&link_type=abstract

HST Proposal ID #11158. Cycle 16

Physics

Scientific paper

We have constructed a sample of early type galaxies at z~0.1 that have blue UV-optical colors, yet also show no signs of optical emission, or extended blue light. We have cross-correlated the SDSS catalog and the Galaxy Evolution Explorer Medium Imaging Survey to select a sample of galaxies where this UV emission is strongest. The origin of the UV rising flux in these galaxies continues to be debated, and the possibility that some fraction of these galaxies may be experiencing low levels of star formation cannot be excluded. There is also a possibility that low level AGN activity as evidenced by a point source is responsbile We propose to image the UV emission using the HST/SBC and to explore the morphology of the UV emission relative to the optical light.;

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