The VLT-FLAMES Tarantula Survey: The fastest rotating O-type star and shortest period LMC pulsar - remnants of a supernova disrupted binary?
Dufton, P. L. · Dunstall, P. R. · Evans, C. J. · Brott, I. · Cantiello, M. · de Koter, A. · de Mink, S. E. · Fraser, M. · Hénault-Brunet, V. · Howarth, I. D. · Langer, N. · Lennon, D. J. · Markova, N. · Sana, H. · Taylor, W. D.
الأصل · EN
We present a spectroscopic analysis of an extremely rapidly rotating late O-type star, VFTS102, observed during a spectroscopic survey of 30 Doradus. VFTS102 has a projected rotational velocity larger than 500and probably as large as 600; as such it would appear to be the most rapidly rotating massive star currently identified. Its radial velocity differs by 40from the mean for 30 Doradus, suggesting that it is a runaway. VFTS102 lies 12 pcs from the X-ray pulsar PSR J0537-6910 in the tail of its X-ray diffuse emission. We suggest that these objects originated from a binary system with the rotational and radial velocities of VFTS102 resulting from mass transfer from the progenitor of PSR J0537-691 and the supernova explosion respectively.
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