http://arxiv.org/abs/1907.12419
We study the final stages of the evolution of a binary system consisted of a black hole and a white dwarf star. As a model of a white dwarf star, we consider a zero temperature droplet of attractively interacting degenerate atomic bosons and spin-polarized atomic fermions. Such mixtures are investigated experimentally nowadays. We find that the white dwarf star is stripped off its mass while passing the periastron. A charged mass, falling onto a black hole, could be responsible for recently discovered ultraluminous X-ray bursts. The binary system ends its life in a spectacular way, revealing quantum features underlying the white dwarf star’s structure. Due to nonlinear effects, both classical and quantum, the accretion disc originated from the white dwarf becomes fragmented and the onset of quantum turbulence with giant quantized vortices present in the bosonic accretion disc is observed.
T. Karpiuk, M. Nikołajuk, M. Gajda, et. al.
Tue, 30 Jul 19
64/79
Comments: 9 pages, 6 figures, to be submitted to ApJ