High-resolution spectroscopy of the optical candidate for the X-ray transient X0331 + 53

Details High-resolution spectroscopy of the optical candidate for the X-ray transient X0331 + 53 High-resolution spectroscopy of the optical candidate for the X-ray transient X0331 + 53

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97..126s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, Feb. 1985, p. 126-129.

Astronomy and Astrophysics

Astronomy

9

Binary Stars, Stellar Spectra, Visible Spectrum, X Ray Sources, X Ray Stars, B Stars, High Resolution, Interstellar Extinction, Spectral Energy Distribution

Scientific paper

High-resolution spectral observations of the optical candidate for the X-ray transient X0331 + 53 are presented. The data show broad hydrogen and helium emission and strong interstellar absorption corresponding to a visual extinction of about 7 mag. No photospheric absorption in the emission lines, and no radial-velocity variations greater than 0.5 km/s were found over a three-day period. It is concluded that the optical continuum does not arise at or near the primary star. As an example of the spectrographic data, a resolution profile of H-alpha emission in X0331 + 53 is provided.

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