CO emission at Z = 2.2867 in the galaxy IRAS F10214 + 4724

Details CO emission at Z = 2.2867 in the galaxy IRAS F10214 + 4724 CO emission at Z = 2.2867 in the galaxy IRAS F10214 + 4724

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....102.1956b&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 102, Dec. 1991, p. 1956-1959.

Astronomy and Astrophysics

Astronomy

131

Carbon Monoxide, Galactic Radiation, Milky Way Galaxy, Emission Spectra, Infrared Astronomy Satellite

Scientific paper

The detection of CO (J = 3-2) emission in the IR-luminous galaxy IRAS F10214 + 4724 at a redshift of 2.2867 is reported. This redshift is more than ten times greater than that of the most distant CO emission discovered in a galaxy. Although the IR luminosity of the galaxy is enormous (3 x 10 exp 14 solar luminosities, the ratio of CO integrated flux density to 100-micron flux density is consistent with that from normal spiral galaxies. This implies that the physical processes affecting the ISM in spiral galaxies are common to IRAS F10214 + 4724 in a starburst galaxy seen at an early cosmological epoch; in this sense it is a protogalaxy. The lock-back time to IRAS F 10214 + 4724 is more than 80 percent of the age of the universe. Thus, within the first 3 billion yr this object was able to condense from the Hubble flow and complete enough stellar lifecycles to enrich the metals in the ISM.

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