作者: Enrique Moreno Méndez , Gerald E. Brown , Chang-Hwan Lee , Il H. Park
DOI: 10.1086/593977
关键词: Black hole 、 Physics 、 Intermediate-mass black hole 、 Astrophysics 、 Orbital period 、 Astronomy 、 X-ray binary 、 Binary black hole 、 Stellar black hole 、 Schwarzschild radius 、 Spin-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.