Molecular gas in the early-type starburst galaxy NGC 3928

Details Molecular gas in the early-type starburst galaxy NGC 3928 Molecular gas in the early-type starburst galaxy NGC 3928

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...411l..71l&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 411, no. 2, p. L71-L74.

Other

8

Interstellar Gas, Molecular Clouds, Molecular Gases, Starburst Galaxies, Carbon Monoxide, Elliptical Galaxies, Space Density

Scientific paper

Observations of (C-12)O J = 1-0, 2-1, 3-2 and (C-13)O J = 1-0 emission in the S0/a galaxy NGC 3928, which is believed to be undergoing nuclear starburst, are reported. The line ratios are consistent with optically thick (C12)O lines with molecular gas at least as warm as that in the Galactic disk. The physical conditions of the molecular gas in NGC 3928 are likely comparable to the molecular gas in the nuclear regions of spiral galaxies. The molecular gas is confined to an 11-arcsec disk with an average surface density of 400 solar masses/pc sq and is clearly associated with the miniature spiral disk, which may have been captured by an otherwise gas-poor elliptical galaxy.

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