Molecular Column Densities Near the Center of the Milky Way

Details Molecular Column Densities Near the Center of the Milky Way Molecular Column Densities Near the Center of the Milky Way

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..375..295x&link_type=abstract

From Z-Machines to ALMA: (Sub)Millimeter Spectroscopy of Galaxies ASP Conference Series, Vol. 375, proceedings of the conference

Astronomy and Astrophysics

Astronomy

Scientific paper

We use submillimeter-wave survey data to estimate molecular column densities throughout the Galactic Center region. Fully-sampled maps of 461 GHz CO J = 4→ 3, 807 GHz CO J = 7 → 6, and 492 GHz [C I] emission from the AST/RO survey of the Galactic Center region (Martin et al. 2004), together with 115 GHz CO J = 1 → 0 and 110 GHz 13CO J = 1 → 0 data from the Bell Labs Survey (Bally et al. 1988), are used in a large velocity gradient (LVG) model to estimate the radiative transfer properties of CO and thereby determine the column densities of molecular material in the inner few degrees of the Milky Way. These data are presented in the form of a map.

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