HCN and HCO+ Emission in M31 : Tracing the Dense Molecular Gas in a Galactic Disk

Details HCN and HCO+ Emission in M31 : Tracing the Dense Molecular Gas in a Galactic Disk HCN and HCO+ Emission in M31 : Tracing the Dense Molecular Gas in a Galactic Disk

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jkas...38..245m&link_type=abstract

Journal of the Korean Astronomical Society, vol. 38, no. 2, pp. 245-248

Other

Galaxies: Ism, Galaxies: M31, Ism: Molecules

Scientific paper

We present mm observations with the IRAM 30m radiotelescope of the HCN (J=1-0) and HCO^+ (J=1-0) emission lines from Giant Moleculat Clouds (GMC) in the disk of the Andromeda Galaxy. The selected GMC targets have various morphology and environments, including locations within spiral arms or in interarm regions and with galactocentric radii ranging from 2.4 to 15.5 kpc over the disk. The radial distributions of the ratios HCN/CO and HCO^+/CO are discussed and their values are compared to other galaxies.

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