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The total column densities and fractional abundances of CH3CN, CH3OH, HCOOCH3 and 13CS in W51 cores

Authors
  • Pei, Chunchuan1
  • Ma, Hongjun1
  • Zeng, Qin1
  • Li, Bo1
  • 1 Chinese Academy of Sciences, Purple Mountain Observatory, Nanjing, 210008, China , Nanjing (China)
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.

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