GAS AND DUST TEMPERATURES IN THE DENSE MO LECULAR CLOUDS ASSOCIATED WITH HII-REGIONS

Authors
PIROGOV LE ZINCHENKO II
Citation
Le. Pirogov et Ii. Zinchenko, GAS AND DUST TEMPERATURES IN THE DENSE MO LECULAR CLOUDS ASSOCIATED WITH HII-REGIONS, ASTRONOM ZH, 70(5), 1993, pp. 959-966
Citations number
20
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ASTRONOMICESKIJ ZURNAL
ISSN journal
00046299 → ACNP
Volume
70
Issue
5
Year of publication
1993
Pages
959 - 966
Database
ISI
SICI code
0004-6299(1993)70:5<959:GADTIT>2.0.ZU;2-B
Abstract
The gas and dust temperatures are compared for 16 molecular clouds wit h dense cores. The mean value of the dust temperature is 1,3-1,4 times greater than the ps temperature mean value. Gas heating is probably d ue to collisions with dust particles for most of the objects. The reas ons for the observed deviations from this mechanism in some sources ar e discussed. The mean lower limit of the hot to cold dust component ma ss ratio is 1,4 . 10(-3).