Citation
S. Okumura et al., A large-scale CO mapping of the central region of W 51, PUB AST S J, 53(5), 2001, pp. 793-798
Citations number
16
Categorie Soggetti
Space Sciences
Journal title
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
ISSN journal
00046264
→ ACNP
Volume
53
Issue
5
Year of publication
2001
Pages
793 - 798
Database
ISI
SICI code
0004-6264(2001)53:5<793:ALCMOT>2.0.ZU;2-H
Abstract
We present a high-resolution (16") (CO)-C-13 (J = 1-0) map of the central r
egion of W 51. We observed an area of about 15.'3 x 16.'7, which covers the
entire region of G49.5-0.4, the brightest source in the W 51 region. Four
discrete molecular clouds were identified toward G49.5-0.4, and evidence of
cloud-cloud collisions was found. We speculate that a "pileup" of three mo
lecular clouds resulted in a burst of massive star formation in G49.5-0.4.