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Aperture synthesis observations of CO emission from the nucleus of IC 342

DOI

72

Citations

0

References

1984

Year

K. Y. Lo, G. L. Berge, M. J. Claussen, G. M. Heiligman, Robert B. Leighton, C. R. Masson, A. T. Moffet, T. G. Phillips, A. I. Sargent, Stephen L. Scott,
The Astrophysical Journal

Abstract

The first aperture synthesis maps of 2.6 mm wavelength CO (J = 1-0) emission from an external galaxy, IC 342. The 7-arcsec resolution maps of the nuclear region were made with the Owens Valley Millimeter-Wave Interferometer. They reveal that the CO source is distributed in a bar, 300 pc x more than about 1500 pc, with a velocity gradient across the width of the bar. The observations suggest that the molecular gas in the nucleus is moving in response to an oval gravitational potential. The implications of an oval potential on enhanced star formation and other activities are discussed.