SIMBAD references

2012MNRAS.425L..91P - Mon. Not. R. Astron. Soc., 425, L91-L95 (2012/September-1)

Identifying stars of mass >150 m from their eclipse by a binary companion.

PAN T. and LOEB A.

Abstract (from CDS):

We examine the possibility that very massive stars greatly exceeding the commonly adopted stellar mass limit of 150 M may be present in young star clusters in the local universe. We identify 10 candidate clusters, some of which may host stars with masses up to 600 M formed via runaway collisions. We estimate the probabilities of these very massive stars being in eclipsing binaries to be ≳ 30 per cent. Although most of these systems cannot be resolved at present, their transits can be detected at distances of 3 Mpc even under the contamination of the background cluster light, due to the large associated luminosities ∼ 107 L and mean transit depths of ∼ 106 L. Discovery of very massive eclipsing binaries would flag possible progenitors of pair-instability supernovae and intermediate-mass black holes.

Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): binaries: general - galaxies: star clusters: general

Simbad objects: 19

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