CO(J=3-2) Observations of MS 1512-cB58 at z=2.72^*

Details CO(J=3-2) Observations of MS 1512-cB58 at z=2.72^* CO(J=3-2) Observations of MS 1512-cB58 at z=2.72^*

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997pasj...49..535n&link_type=abstract

Publications of the Astronomical Society of Japan, v.49, p.535-538.

Astronomy and Astrophysics

Astronomy

7

Co Emission Line, Galaxies: Formation, Galaxies: Individual(Ms 1512-Cb58)

Scientific paper

We report on a search for (12) CO(J=3--2) emission line toward MS 1512-cB58, a forming galaxy candidate at z=2.72. We have observed the object with the 45-m telescope of the Nobeyama Radio Observatory, and found no significant emission. The 3sigma upper limit of the CO(J=3--2) line luminosity is 4.4times 10(10) K km s(-1) pc(2) , assuming a line velocity width of 300 km s(-1) ; this corresponds to a molecular hydrogen mass of 2.0 times 10(11) MO , if we assume the Galactic CO-to-H_2 conversion factor. A lower limit on the ratio of the \Hα\ line luminosity to the CO luminosity of MS 1512-cB58 is at an upper part of, but within, the range of ratios for nearby galaxies.

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