Published August 15, 1979
| Version v1
Journal article
Optical identification of 2A 0311--227 with a new AM Herculis-type object
- 1. Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138
Description
The X-ray source 2A 0311--227 has been precisely positioned by using the HEAO 1 scanning modulation collimator, resulting in a B/sub mag/approx.15 optical candidate. Medium-resolution optical spectra of this star show remarkable similarity to the spectrum of AM Her, a short-period binary containing a magnetic white dwarf. The Balmer decrement in 2A 0311--227 is also similar to that in AM Her, and may likewise be attributed to collisional excitation in a plasma with n/sub e/approx.1013 cm-3
Additional details
Publishing Information
- Journal Title
- Astrophys. J., Lett. Ed.
- Journal Volume
- 232
- Journal Issue
- 1
- Series
- Astrophys. J., Lett. Ed.
- Journal Page Range
- L27-L31
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 11515590
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BINARY STARS; COSMIC X-RAY SOURCES; LINE WIDTHS; VARIATIONS; WHITE DWARF STARS; X-RAY SPECTRA
- Descriptors DEC
- COSMIC RAY SOURCES; DWARF STARS; SPECTRA; STARS