Discovery of optical bursts from an X-ray burst source, MXB1735-44

Details Discovery of optical bursts from an X-ray burst source, MXB1735-44 Discovery of optical bursts from an X-ray burst source, MXB1735-44

Aug 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.274..567g&link_type=abstract

Nature, vol. 274, Aug. 10, 1978, p. 567, 568.

Computer Science

57

Bursts, Light Emission, X Ray Sources, Binary Stars, Black Body Radiation, Spectral Resolution, Ubv Spectra

Scientific paper

The optical counterpart of 4U 1735-44, X-ray burst source MXB 1735-44, was studied with the 1.5-m telescope at Cerro Tololo, and by SAS 3, during the period between June 1 and 3, 1978. Explanations for the optical activity are discussed in terms of accretion instabilities onto a neutron star, or thermonuclear flashes on the neutron star itself. Attention is given to the timing of the bursts, which indicate that the burst source probably is located in a region within 1-2 light seconds from the X-ray source. In the binary case, it is noted that the optical emission is probably removed from the X-ray heated stellar atmosphere of the possible companion.

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