Orbital Variability in the Wind of the Massive X-Ray Binary HD 153919/4U 1700-37
Abstract
A set of forty high-dispersion IUE spectra of HD 153919, the Of-type primary in the 4U 1700-37 X-ray binary system, have been examined for evidence of orbital profile variability associated with the Hatchett-McCray effect. Although the effect is negligible in the resonance lines of C IV, Si IV, and N V, some subordinate lines show clear orbital changes. The variability in the absorption profile of N IV 1718, in particular, is shown to be in agreement with model calculations. The interstellar spectrum is studied, showing that highly ionized species can be maintained by the primary's radiation field alone.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1990
- DOI:
- 10.1086/168572
- Bibcode:
- 1990ApJ...352..698H
- Keywords:
-
- Interstellar Extinction;
- Stellar Orbits;
- Stellar Winds;
- Ultraviolet Spectra;
- X Ray Binaries;
- Data Reduction;
- Line Spectra;
- Spectral Line Width;
- Astrophysics;
- STARS: INDIVIDUAL HENRY DRAPER NUMBER: HD 153919;
- STARS: WINDS;
- ULTRAVIOLET: SPECTRA;
- X-RAYS: BINARIES