-- card: 10417 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 2623
-- name: 


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83

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25

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29

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X-ray emitting binary stars contain

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a neutron star or black hole collecting matter from its                  companion


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two colliding stars

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a quasar and a pulsar

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1

-- part contents for background part 38
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false