Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....82..381r&link_type=abstract
Astronomy and Astrophysics, vol. 82, no. 3, Feb. 1980, p. 381-384. Research supported by the Science Research Council.
Astronomy and Astrophysics
Astrophysics
30
Carbon Monoxide, Galactic Nuclei, Galactic Structure, Line Spectra, Molecular Gases, Abundance, Active Galaxies, Spectrum Analysis
Scientific paper
A survey has been made of the nuclei of 81 galaxies for the 1-0 line of CO. Thirty-eight of the galaxies are from a complete sample with recession velocity of 400 km/s and 21-cm line strength of 10 to the -27th W/sq m; the remainder represent nearby galaxies with weaker or no H I, early-type galaxies (E/SO/Sa) with detected H I, and active/infrared galaxies. Galaxies with strong CO lines like M82, NGC 253 and IC 342 are exceedingly rare: all the galaxies observed are weaker than 0.2 K except the irregular galaxy DDO 133 with 0.22 K. There have been found new, confirmed detections of two other irregular galaxies, IC 10 and Pegasus, at a weaker level, and unconfirmed detections of the irregular NGC 3109 and the nearest Type I Seyfert galaxy NGC 4051. The existence of CO in the nucleus of NGC 6946 was confirmed and spectra of new positions in M82 and NGC 253 were obtained.
Phillips Thomas G.
Rowan-Robinson Michael
White Glenn
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