Other
Scientific paper
Jul 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008hst..prop11574s&link_type=abstract
HST Proposal ID #11574. Cycle 17
Other
Scientific paper
Superwinds associated with the triggering of quasars are of current interest because such feedback effects may be connected with the initial formation of the black-hole-mass/bulge mass correlation. In the z = 0.369 compact-steep-spectrum quasar 3C48, ground-based IFU observations show the presence of a high-velocity, wide-solid-angle outflow of gas, apparently connected with the recent formation of the radio jet. The total mass of gas in this outflow is at least 10^9 solar masses, but it could be well over 10^10 solar masses {i.e., similar to or greater than the total interstellar mass of the Milky Way} if most of the gas has densities like those seen in other quasar extended emission regions. To determine the physical state and energetics of the gas in the outflow, we request {1} high-spatial-resolution spectroscopy over a wide spectral range, including the near UV, and {2} medium-resolution spectroscopy of the strong [O III] 5007 line, which, when combined with unpublished archival data, will allow complete coverage of the velocity field of the high-velocity gas in the inner region.;
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