Search for 12CO emission from twelve irregular dwarf galaxies

Details Search for 12CO emission from twelve irregular dwarf galaxies Search for 12CO emission from twelve irregular dwarf galaxies

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...168..369i&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 168, no. 1-2, Nov. 1986, p. 369, 370.

Astronomy and Astrophysics

Astrophysics

16

Carbon Monoxide, Dwarf Galaxies, Emission Spectra, Irregular Galaxies, Molecular Clouds, Star Formation, Interstellar Gas, Star Formation Rate

Scientific paper

The authors searched for (1-0) 12CO emission in a sample of twelve irregular dwarf galaxies. The sample included galaxies with (U-V)0 colors at both the red and blue extremes, and thus presumably represented systems with both low and high star-formation rates. No emission was detected above (3σ) upper limits of about 25mK. The weak CO strength could be a consequence of a molecular hydrogen abundance lower than that in the Milky Way, or it could be due to the relatively low metal content in these small galaxies.

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