X-ray nova flares |
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| Authors: | P R Amnuel O H Guseinov Sh Ju Rakhamimov |
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| Institution: | 1. The Shemakha Astrophysical Observatory of the Academy of Sciences of Azerb. SSR, USSR
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| Abstract: | In order to find out the physical nature of galactic X-ray sources, data on variability of 24 sources during 1964–1971 have been investigated. The fluxes of 9 sources are found to be increasing to the maximum value (for several months) and then slowly decreasing (for }3 yr). These 9 sources have been related by us to the class of X-ray novae. The X-ray nova synthetic light curve has been drawn from data on the fluxes of 9 discovered novae. Assumptions have been made on the physical nature of the X-ray novae. Between the flares the X-ray novae may be weak X-ray sources with luminosity about 1034 erg s?1. During the flares the luminosity increases to about 1038 erg s?1. The number of X-ray sources in the Galaxy is about 104–105, the average distance between them about 0.5 kpc. The object of the optical identification may be a dwarf star of no earlier spectral class than F. |
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