CO observations of ultrasoft active galactic nuclei

Details CO observations of ultrasoft active galactic nuclei CO observations of ultrasoft active galactic nuclei

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.264..999t&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 264, p. 999

Astronomy and Astrophysics

Astronomy

Carbon Monoxide, Active Galactic Nuclei, Radio Spectra, Emission Spectra, X Ray Sources, Heao 2, Accretion Disks

Scientific paper

We have observed a sample of four ultrasoft X-ray-emitting AGN in the emission line of CO (J = 1-0) using the NRAO 12-m telescope. The sample includes AGN that have a strong component of hard X-ray emission and AGN that lack a detectable hard X-ray component. We have detected CO emission from one AGN (E1227.0+1403, z = 0.10) and set upper limits on the CO emission from the remaining ones. This detection is at a fairly substantial redshift for AGN CO detections. Based on further X-ray and optical data, we propose that the CO-emitting gas in this galaxy is in a toroidal configuration, surrounding a coaligned accretion disc at the center of the AGN.

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