THE CASE FOR HYPERCRITICAL ACCRETION IN M33 X−7

作者: Enrique Moreno Méndez , Gerald E. Brown , Chang-Hwan Lee , Il H. Park

DOI: 10.1086/593977

关键词: Black holePhysicsIntermediate-mass black holeAstrophysicsOrbital periodAstronomyX-ray binaryBinary black holeStellar black holeSchwarzschild radiusSpin-flip

摘要: The spin parameter of the black hole in M33 X-7 has recently been measured to be a = 0.77 ± 0.05. It proposed that 15.65 M☉ is natal. We show this not viable evolutionary path given observed binary orbital period 3.45 days since explosion would produce with cited and disrupt binary. Furthermore, we system evolved through hypercritical mass transfer ~5 from secondary star hole.

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