Passive Galaxies In The Wisp Survey

Details Passive Galaxies In The Wisp Survey Passive Galaxies In The Wisp Survey

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21740708s&link_type=abstract

American Astronomical Society, AAS Meeting #217, #407.08; Bulletin of the American Astronomical Society, Vol. 43, 2011

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The WFC3 Infrared Spectroscopic Parallel (WISP) survey consist of 400 orbits of HST pure parallel observations with the WFC3 G102 and G141 infrared grisms. The broad, continuous, spectral coverage (between 0.8 and 1.7um) provides the best currently feasible Halpha-based measurement of the star formation rate, in the 0.51, provide constraints on the mean age of the stellar population and the time since the last major episode of star formation. I will present the spectroscopic analysis of a sample of galaxies at z 2, preselected to have colors consistent with passive galaxies at z 1.5. I will discuss their sizes, and morphological properties derived from the J and H WFC3 images we are obtaining as part of the WISP survey.

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