Physics
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40001s&link_type=abstract
Spitzer Proposal ID #40001
Physics
Scientific paper
Luminous, massive extended emission-line regions (EELRs) are found around a substantial fraction of low-redshift radio-loud QSOs. These EELRs typically extendfor several tens of kpc and are highly structured entities. In spite of their preference for radio-loud QSOs, they generally show no significant correlation with radio jets or lobes. They also show no tendancy to follow the morphology of the host galaxy. A number of lines of evidence indicate strongly that this gas has been ejected from the host galaxy by a powerful superwind, but whether this wind is due to a central starburst or to radiative coupling of the QSO's energy output to surrounding dust and gas is uncertain. We propose spectroscopy of the 8 micron PAH feature with the IRS Low Res 7.4-14.5 micron module and MIPS 24, 70, and 160 micron photometry to constrain the star-formation rates in carefully matched samples of steep-spectrum, radio-loud QSOs with and without luminous EELRs.
Fu Haixiang
Stockton Alan
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