Bibcode
                                    
                            Renzo, M.; de Mink, S. E.; Lennon, D. J.; Platais, I.; van der Marel, R. P.; Laplace, E.; Bestenlehner, J. M.; Evans, C. J.; Hénault-Brunet, V.; Justham, S.; de Koter, A.; Langer, N.; Najarro, F.; Schneider, F. R. N.; Vink, J. S.
    Referencia bibliográfica
                                    Monthly Notices of the Royal Astronomical Society: Letters, Volume 482, Issue 1, p.L102-L106
Fecha de publicación:
    
                        1
            
                        2019
            
  Número de citas
                                    18
                            Número de citas referidas
                                    16
                            Descripción
                                    How very massive stars form is still an open question in astrophysics.
VFTS682 is among the most massive stars known, with an inferred initial
mass of ≳150 M_⊙. It is located in 30 Doradus at a projected
distance of 29 pc from the central cluster R136. Its apparent isolation
led to two hypotheses: either it formed in relative isolation or it was
ejected dynamically from the cluster. We investigate the kinematics of
VFTS682 as obtained by Gaia and Hubble Space Telescope astrometry. We
derive a projected velocity relative to the cluster of 38± 17{ km
s^{-1}} (1σ confidence interval). Although the error bars are
substantial, two independent measures suggest that VFTS682 is a runaway
ejected from the central cluster. This hypothesis is further supported
by a variety of circumstantial clues. The central cluster is known to
harbour other stars more massive than 150 M_⊙ of similar spectral
type and recent astrometric studies on VFTS16 and VFTS72 provide direct
evidence that the cluster can eject some of its most massive members, in
agreement with theoretical predictions. If future data confirm the
runaway nature, this would make VFTS682 the most massive runaway star
known to date.
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