AN EVOLUTIONARY MODEL FOR THE WOLF-RAYET NEBULA NGC-2539

Authors
MEABURN J DYSON JE GOUDIS CD CHRISTOPOULOU PE
Citation
J. Meaburn et al., AN EVOLUTIONARY MODEL FOR THE WOLF-RAYET NEBULA NGC-2539, Astrophysics and space science, 216(1-2), 1994, pp. 281-283
Citations number
6
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astrophysics and space science → ACNP
ISSN journal
0004640X
Volume
216
Issue
1-2
Year of publication
1994
Pages
281 - 283
Database
ISI
SICI code
0004-640X(1994)216:1-2<281:AEMFTW>2.0.ZU;2-S
Abstract
The main outer ring of the WR nebula NGC 2539 expands radially with ve locity almost-equal-to 26kms-1. The dynamics are modelled as the inter action of the winds from the 0 progenitor and the present WR stage wit h clumpy molecular cloud material and Red Supergiant ejecta. In both s tages, the bubbles are driven by wind momentum. The necessary radiativ e energy loss probably occurs in boundary layers between cool clumps a nd hot shocked wind.