Evidence for spectroscopic periodicity in an X-ray burster

Details Evidence for spectroscopic periodicity in an X-ray burster Evidence for spectroscopic periodicity in an X-ray burster

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pasp...95...23h&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 95, Jan. 1983, p. 23-26.

Astronomy and Astrophysics

Astronomy

9

Binary Stars, Bursts, Optical Emission Spectroscopy, Stellar Models, Stellar Spectra, X Ray Sources, Emission Spectra, Line Spectra, Mass Transfer, Spectral Resolution, Temporal Resolution

Scientific paper

Optical spectrograms of the X-ray burster 1735-44 have been obtained on parts of four nights with 30-minute time resolution and 3 A-5 spectral resolution. SIT Vidicon data on two nights show variations in intensity and velocity of N III, C III, and He II which appear to execute a 2.86-hour cycle. Because only two cycles are observed and the S/N in the spectra is poor, it is not claimed that the behavior is necessarily periodic. Further observations are needed to verify the binary model implied if these variations repeat.

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