Computer Science
Scientific paper
Feb 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005noao.prop..487z&link_type=abstract
NOAO Proposal ID #2005A-0487
Computer Science
Scientific paper
Are submillimeter (SCUBA) galaxies the massive progenitors of present-day ellipticals? Direct mass measurements of SCUBA sources are limited by the intrinsic faintness and dust obscuration in the optical counterparts. However, two clues to the mass of these sources can be found by investigating their gaseous environments, in the form of emission-line halos, and their clustering, via nearby star-forming galaxies. We propose to obtain narrow or medium-band Lyman-(alpha) images of five bright submillimeter sources with known redshifts. Using these observations we will be able to detect large-scale (> 100 kpc) Ly(alpha) emission-line halos and Ly(alpha) emitting companion galaxies in the fields of the SCUBA sources. Up until now only three known Ly(alpha) halos have been found around sub-mm galaxies. No systematic study of the gaseous and possible protocluster environments of SCUBA sources has been done. Our proposed observations will therefore nearly triple the number of SCUBA sources observed in Ly(alpha) and provide an ideal companion set to the similar studies of high-redshift radio galaxies.
Holden Brad
Kraiberg Knudsen Kirsten
Reuland Michiel
Webb Tracy
Zirm Andrew Wasmuth
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