Decreasing diameter of a molecular ring

Details Decreasing diameter of a molecular ring Decreasing diameter of a molecular ring

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...259l..27c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 259, no. 1, p. L27-L30.

Astronomy and Astrophysics

Astrophysics

35

Barred Galaxies, Carbon Monoxide, Galactic Evolution, Molecular Gases, Star Formation, Galactic Radiation, Galactic Structure

Scientific paper

The nuclear region of the barred spiral galaxy NGC 4314 has been mapped at high angular resolution in CO (J = 1-0) with the Nobeyama millimeter array. This galaxy presents a nuclear ring of hot spots at a radius of about 7 arcsec from the center. The CO emission is concentrated in the inner 10 arcsec and associated with the dust patches located inside the nuclear hot spots. The molecular ring is located inside the ring of continuum emission, suggesting that nuclear molecular rings evolve slowly, reducing their radius due to friction exerted by the background stars on the giant molecular clouds.

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