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Unformatted text preview: Neutron star companions Most stars would survive its companions massive star supernova Typically produce a neutron star-main seq. star binary Several even have planets ! Periodic changes in the pulse of PSR 1257T 12 identified 3 planets orbiting it. These were the first extra solar planets ever discovered Mass transfer in close binaries Matter falling toward a neutron star will form an accretion disk, just as in a white dwarf binary Mostly H and He Accreting matter adds angular momentum to a neutron star, increasing its spin Many of the most rapidly rotating pulsars are in the binary stars....
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