Galactic ring nebulae associated with Wolf-Rayet stars. VI. NGC 3199, anon (MR 26), RCW 58, and RCW 104

Journal Article · Mon Mar 15 04:00:00 EST 1982 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/159768· OSTI ID:5234280

Chu, Y

We have obtained narrow-band interference filter photographs and high resolution Fabry-Perot spectra for four galactic ring nebulae associated with Wolf-Rayet stars: NGC 3199, anon (MR 26), RCW 58, and RCW 104. All of these four nebulae show interaction between the stellar wind and the ambient interstellar medium. NGC 3199, anon (MR 26), and RCW 104 are classified as W-type nebulae. RCW 58, having a prominent ring of stellar ejecta, is classified as an E-type nebula. For most W-type nebulae, the kinetic energy in the shell is only about 1% of the total mechanical energy input from the stellar wind, while the ratio of the shell momentum to the total momentum injected by the stellar wind is about 0.5 and apparently increases with the nebular age.

• Research Organization: Astronomy Department, University of California, Berkeley
• OSTI ID: 5234280
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 254:2; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIO SOURCES
H2 REGIONS
INTERFEROMETRY
MAIN SEQUENCE STARS
NEBULAE
PHOTOGRAPHY
STARS
STELLAR WINDS
WOLF-RAYET STARS