Elongated CO structure in the starburst galaxy NGC 2146

Details Elongated CO structure in the starburst galaxy NGC 2146 Elongated CO structure in the starburst galaxy NGC 2146

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...324l...5j&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 324, Jan. 1, 1988, p. L5-L9.

Astronomy and Astrophysics

Astrophysics

28

Carbon Monoxide, Galactic Structure, Interstellar Matter, Star Formation, Starburst Galaxies, Line Spectra, Luminosity, Molecular Spectra, Synchrotron Radiation, Synthetic Apertures

Scientific paper

Aperture synthesis observations of the CO J = 1→0 line from the starburst galaxy NGC 2146 were obtained with the Hat Creek Millimeter Interferometer. The spatial resolution is 6arcsec in a 2arcmin field of view; the spectral resolution is 52 km s-1. Warm (⪆10K) CO is detected in an elongated structure ≡3.0×0.7 kpc, coincident with radio continuum emission but not coincident with the prominent optical dust lane. This CO structure may be a bar or a disk viewed edge-on. The extensive nature of the high-temperature gas may be a signpost of intense nuclear activity. The LIR/LCO ratio in NGC 2146 is similar to that in M82, but the luminosities and size scale of the starburst region are larger.

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