New observations of CO(1-0) line emission in planetary nebulae

Authors
Zhang, HY Sun, J Ping, JS
Citation
Hy. Zhang et al., New observations of CO(1-0) line emission in planetary nebulae, CHIN ASTR A, 24(3), 2000, pp. 309-314
Citations number
9
Categorie Soggetti
Space Sciences
Journal title
CHINESE ASTRONOMY AND ASTROPHYSICS
ISSN journal
02751062 → ACNP
Volume
24
Issue
3
Year of publication
2000
Pages
309 - 314
Database
ISI
SICI code
0275-1062(200007/09)24:3<309:NOOCLE>2.0.ZU;2-3
Abstract
Using the 13.7 m radio telescope at Qinhai Station of Purple Mountain Obser vatory, new observational results have been obtained for 5 planetary nebula e. Among them, the CO(2-1) emission of M1-8 and M3-3 has been detected and the results of observation of their CO(1-0) emission are presented in this paper. For the other objects, i.e., M1-12, M2-43 and NGC 6537, for which pr evious CO observations failed to detect CO emission, their CO(1-0) emission is here identified for the first time.