THE VLT-FLAMES TARANTULA SURVEY: THE FASTEST ROTATING O-TYPE STAR AND SHORTEST PERIOD LMC PULSAR-REMNANTS OF A SUPERNOVA DISRUPTED BINARY?
| Data(s) |
10/12/2011
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| Resumo |
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 500 km s(-1) and probably as large as 600 km s-1; as such it would appear to be the most rapidly rotating massive star currently identified. Its radial velocity differs by 40 kms(-1) from the mean for 30 Doradus, suggesting that it is a runaway. VFTS102 lies 12 pc 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. |
| Identificador | |
| Idioma(s) |
eng |
| Direitos |
info:eu-repo/semantics/restrictedAccess |
| Fonte |
Dufton , P , Dunstall , P R , Evans , C J , Brott , I , Cantiello , M , De Koter , A , De Mink , S E , Fraser , M , Henault-Brunet , V , Howarth , I D , Langer , N , Lennon , D J , Markova , N , Sana , H & Taylor , W D 2011 , ' THE VLT-FLAMES TARANTULA SURVEY: THE FASTEST ROTATING O-TYPE STAR AND SHORTEST PERIOD LMC PULSAR-REMNANTS OF A SUPERNOVA DISRUPTED BINARY? ' Astrophysical Journal Letters , vol 743 , no. 1 , L22 , pp. 22-27 . DOI: 10.1088/2041-8205/743/1/L22 |
| Palavras-Chave | #/dk/atira/pure/subjectarea/asjc/1900/1912 #Space and Planetary Science #/dk/atira/pure/subjectarea/asjc/3100/3103 #Astronomy and Astrophysics |
| Tipo |
article |
