The total column densities and fractional abundances of CH3CN, CH3OH, HCOOCH3 and 13CS in W51 cores
- Authors
- Type
- Published Article
- Journal
- Science in China Series G: Physics Mechanics and Astronomy
- Publisher
- Science China Press
- Publication Date
- Apr 01, 2005
- Volume
- 48
- Issue
- 2
- Pages
- 158–167
- Identifiers
- DOI: 10.1360/04yw0109
- Source
- Springer Nature
- Keywords
- License
- Yellow
Abstract
We present interferometric observations of the W51 region at 2.7 mm and 3.3 mm with the Berkeley-Illinois-Maryland Association Array. The lines of CH3CN (J = 6 − 5, K = 0,1,2,3,4), CH3OH (15−2−151 E), HCOOCH3-A (71,6 − 615), HCOOCH3-E (71,6 − 615) and 13CS (2-1) as well as the 2.7 mm continuum toward W51 have been observed. The derived total beam-averaged column densities NT and fractional abundances of CH3CN, CH3OH, HCOOCH3 and 13CS in W51 cores have been obtained.