IRAS F10214 + 4724 - an extended CO emission source at Z = 2.2867

Details IRAS F10214 + 4724 - an extended CO emission source at Z = 2.2867 IRAS F10214 + 4724 - an extended CO emission source at Z = 2.2867

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...397l..19b&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 397, no. 1, p. L19-L22.

Astronomy and Astrophysics

Astronomy

68

Carbon Monoxide, Emission Spectra, Galactic Evolution, Infrared Astronomy Satellite, Interstellar Matter, Molecular Gases, Astronomical Spectroscopy, Galactic Structure, Interstellar Gas

Scientific paper

Using the IRAM 30 m telescope, we observed CO(J = 3-2) and CO(J = 4-3) emission lines at z = 2.2867 from the gas-rich protogalaxy IRAS F10214 + 4724. We estimate the molecular mass to be M(H2)/M(solar) between 3 x 10 exp 11/sq h and 3 x 10 exp 12/sq h and the gas-to-dust mass ratio as 1500-15,000. A comparison of the CO(3-2) line observations from the 30 m and 12 m telescopes suggests that the CO is clumped, with the clumps distributed spatially over tens of arcseconds; no more than half the CO emission is spatially coincident with the galaxy IRAS F10214 + 4724 itself. This conclusion is in keeping with recent interferometric observations of CO(3-2) in IRAS F10214 + 4724.

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