Abstract
RUNAWAY stars are produced when there is a supernova explosion in a close binary system. Usually such an explosion disrupts the binary system, but Gott1 has suggested that in a significant fraction of such supernovae the collapsed residue of the explosion may be retained in orbit around the runaway second star, the resultant system being a binary with high eccentricity and large space velocity. We suggest here that Cir X-1 is such a system.
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References
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CLARK, D., PARKINSON, J. & CASWELL, J. Is Cir X-1 a runaway binary?. Nature 254, 674–676 (1975). https://doi.org/10.1038/254674a0
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DOI: https://doi.org/10.1038/254674a0
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