Modeling 6 cm OH Maser Emission in W49
Abstract
W49 is a very luminous star-forming region and is also one of the Galaxy's most intense sources of maser emission. Maser lines typically have narrow linewidths and are very intense. However, a large fraction of the maser emission in the 6 cm excited state OH lines in W49 has been observed to be weak with broad linewidths. The 6 cm emission is also more spatially extended than the typically observed point-like maser emission. These observations have yet to be explained by theoretical models. We have modeled these masers including the important effects of line overlap. We will present our preliminary results, which are in reasonable agreement with observations.
- Publication:
-
American Astronomical Society Meeting Abstracts #214
- Pub Date:
- May 2009
- Bibcode:
- 2009AAS...21442501H