학술논문
HCN AND HCO+ EMISSION IN M31: TRACING THE DENSE MOLECULAR GAS IN A GALACTIC DISK
Document Type
Article
Source
Journal of the Korean Astronomical Society, 38(2), pp.245-248 Jun, 2005
Subject
Language
ISSN
2288-890X
1225-4614
1225-4614
Abstract
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 spiralarms or in terarm regions and with galactocentric radii ranging from 2.4 to 15.5 kpc over the disk. Theradial distributions of the ratios HCN/CO and HCO+ /CO are discussed and their values are comparedto other galaxies.