Outburst Optical Spectroscopy of XTE J2123-058

Details Outburst Optical Spectroscopy of XTE J2123-058 Outburst Optical Spectroscopy of XTE J2123-058

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.343h&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present time-resolved spectroscopy of the soft X-ray transient XTE J2123-058 in outburst. A spectral coverage of 3600-6850 AA was achieved spanning two orbits of the binary. The large orbital modulation seen in this high-inclination system is believed to be due to our changing viewing angle of a strongly irradiated companion star: our multi-wavelength continuum light curves will be used to test this hypothesis. The most prominent emission lines are He II lambda4686 and C III / N III lambda4640 (Bowen blend). Both radial velocities and strengths of the lines are modulated on the orbital period; we hence constrain the location of the line emission region.

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