Published January 1991
| Version v1
Journal article
Spectroscopy of FO Aquarii - Evidence for reprocessing in a hot wind
Creators
- 1. Kenyon College, Gambier, OH (USA)
- 2. Ohio State Univ., Columbus (USA)
Description
Results are presented on spectroscopic observations of FO Aqr, carried out on the nights of September 4-7, 1986 with the 1.8-m Perkins Telescope at Lowell Observatory. It is shown that the observed 21-min modulation of the He II 4686-A line is driven by two emission components which vary in flux and have large negative radial velocities. Arguments are presented to the effect that the modulated portion of the He II 4686-A emission originates from the reprocessing of X-rays in hot winds at these two sites. It is suggested that all other 21-min modulations are due to reprocessing. 32 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 366
- Series
- Astrophys. J.
- Journal Page Range
- 286-299
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22040275
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- EMISSION SPECTRA; ERUPTIVE VARIABLE STARS; MAGNETIC STARS; SPECTROSCOPY; STAR ACCRETION; STELLAR WINDS; WHITE DWARF STARS; X-RAY SPECTRA
- Descriptors DEC
- BINARY STARS; DWARF STARS; SPECTRA; STAR EVOLUTION; STARS; STELLAR ACTIVITY; VARIABLE STARS