Detection of CO(1 to 0) emission from infrared quasars and luminous Seyfert galaxies

Details Detection of CO(1 to 0) emission from infrared quasars and luminous Seyfert galaxies Detection of CO(1 to 0) emission from infrared quasars and luminous Seyfert galaxies

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...213l...5s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 213, no. 1-2, April 1989, p. L5-L8. Research supported by NASA IRAS Extended M

Astronomy and Astrophysics

Astronomy

31

Carbon Monoxide, Infrared Sources (Astronomy), Quasars, Seyfert Galaxies, Active Galactic Nuclei, Light Speed, Luminosity, Markarian Galaxies, Molecular Clouds, Red Shift

Scientific paper

CO(1 to 0) emission has been detected from the infrared quasar IRAS 07598+6508 and the luminous Seyfert galaxies IRAS 08572+3915 and Markarian 463 with the IRAM 30-m telescope. These objects were selected from a complete list of warm ultraluminous IRAS sources. The maximum redshift observed was 0.149 (cz = 44.621 km/s , IRAS 07598+6508). Assuming the same empirical relationship between CO brightness and H2 surface mass density as has been found for giant molecular clouds in the Milky Way, the mass of H2 gas in these objects is in the range 0.7 - 6 x 10 to the 10th solar masses, more than 2 - 20 times the H2 content of the Galaxy. The infrared and molecular gas properties of these galaxies are similar to other 'warm' ultraluminous infrared galaxies such as Mrk 231, and the UV-excess quasar Mrk 1014. It is suggested that objects such as these represent an important link in the evolution of ultraluminous infrared galaxies into UV-excess quasars.

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