Ultraviolet probes of the starburst-AGN connection

Details Ultraviolet probes of the starburst-AGN connection Ultraviolet probes of the starburst-AGN connection

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..408..160h&link_type=abstract

The ultraviolet universe at low and high redshift. AIP Conference Proceedings, Volume 408, pp. 160-170 (1997).

Physics

Quasars, Active Or Peculiar Galaxies, Objects, And Systems, Ultraviolet, Radiation Mechanisms, Polarization

Scientific paper

I review UV observations of AGN, with a focus on the use of such data to probe the possible connection between AGN and starburst. The vacuum-UV is the energetically-dominant spectral regime for the hot high-mass stars that power starbursts, and contains a wealth of spectral features for diagnosing the presence of such stars. I also review the non-stellar sources of UV line and continuum emission in AGN, including scattered or reprocessed light from the `central engine.' Spectroscopy shows that starbursts provide much of the UV light in at least 40% of the brightest type 2 Seyferts. There is still very little vacuum-UV spectroscopy of LINERs, but the existing data reveal a diverse origin for the UV line and continuum emission, including mini-AGN, shock-heated gas, and hot stars.

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