Narrow Band Imaging of Quasars -- Cycle 0

Details Narrow Band Imaging of Quasars -- Cycle 0 Narrow Band Imaging of Quasars -- Cycle 0

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990hst..prop.1233m&link_type=abstract

HST Proposal ID #1233

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Hst Proposal Id #1233

Scientific paper

It has long been thought that quasars may be powered by the infall of gas, either from within the parent galaxy or from outside. It has also been thought that quasars may expel gas into the intergalactic medium, leading to large-scale enrichment at an early epoch. In either case, one may expect to find gas within the parent galaxies of quasars, and large gaseous halos around them. Other possibilities have been suggested - protogalactic disks, protoclusters, residual pancake structures - the remains of which might also appear as halos around quasars. Narrow-band observations of quasars with the ST will not only address these fundamental issues, but will at the same time touch on several others, including the nature of the parent galaxy, its evolution with redshift, the presence of nearby galaxies and possible protogalaxies, and the nature of the objects causing quasar absorption lines.

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