Spectroscopic confirmation of two candidate z~8 galaxies with IRS

Details Spectroscopic confirmation of two candidate z~8 galaxies with IRS Spectroscopic confirmation of two candidate z~8 galaxies with IRS

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50262l&link_type=abstract

Spitzer Proposal ID #50262

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Scientific paper

We wish to obtain spectroscopic confirmation of two candidate z~8 galaxies with IRS, selected from the IRAC calibration field using IRAC and HST/ACS photometry. These galaxies have been selected to have an excess in the IRAC [5.8] band, corresponding to H-alpha emission at z~7-9. If confirmed, these galaxies will allow us to to directly constrain the stellar mass density in massive galaxies at z>7 for the first time, besides giving us an estimate of the star formation rate density at those redshifts in a much larger comoving volume than currently possible with any other dataset. The IRAC calibration field, a low background region near the North Ecliptic Pole, has the deepest IRAC data ever taken.

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