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Some remarks on the universal X-ray background |
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| Authors: | Probhas Raychaudhuri Pratul Bandyopadhyay |
| Institution: | (1) Indian Statistical Institute, Calcutta, India |
| Abstract: | It is shown that a universal steady X-ray background with the energy flux  10–7 erg cm–2 s–1 sr–1 can arise as a superposition of radiation from pulsars (neutron stars) in various galaxies when it is taken into account that supernova outburst occurs in a galaxy at the rate of 10–2/year. |
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