Published November 1988
| Version v1
Journal article
Spectroscopic evidence for rapid blob ejection in Wolf-Rayet stars
Description
The five bright Cygnus WN stars in the unblended He II 5411A emission line has been monitored at high spectral resolution and high S/N during four or five nights. Typical data are presented here for the two single WN6 stars HD 191765 and HD 192163. The spectra reveal narrow emission bumps superposed on a broad smooth background wind profile with FWHM of about 2-10 A and height 10 percent or less in continuum units for HD 191765. The bumps always appear to accelerate outward along with the general wind, on a time scale of hours. 20 references
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 334
- Series
- Astrophys. J.
- Journal Page Range
- 1038-1043
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20031576
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- EMISSION SPECTRA; HELIUM; MASS TRANSFER; SIGNAL-TO-NOISE RATIO; SPECTROSCOPY; STELLAR WINDS; WOLF-RAYET STARS
- Descriptors DEC
- ELEMENTS; MAIN SEQUENCE STARS; NONMETALS; RARE GASES; SPECTRA; STARS; STELLAR ACTIVITY