Modelling quantum aspects of disruption of a white dwarf star by a black hole

Abstract We study the final stages of the evolution of a binary system consisted of a black hole and a white dwarf star. We implement the quantum hydrodynamic equations and carry out numerical simulations. As a model of a white dwarf star we consider a zero temperature droplet of attractively intera...

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Autores principales:	Tomasz Karpiuk, Marek Nikołajuk, Mariusz Gajda, Mirosław Brewczyk
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5adc672c546142fb8da205decdce5958
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spelling	oai:doaj.org-article:5adc672c546142fb8da205decdce59582021-12-02T13:57:26ZModelling quantum aspects of disruption of a white dwarf star by a black hole10.1038/s41598-021-81707-52045-2322https://doaj.org/article/5adc672c546142fb8da205decdce59582021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81707-5https://doaj.org/toc/2045-2322Abstract We study the final stages of the evolution of a binary system consisted of a black hole and a white dwarf star. We implement the quantum hydrodynamic equations and carry out numerical simulations. 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. Due to nonlinear effects, the accretion disk originated from the white dwarf becomes fragmented and the onset of a quantum turbulence with giant quantized vortices present in the bosonic component of the accretion disk is observed. The binary system ends its life in a spectacular way, revealing quantum features underlying the white dwarf star’s structure. We find a charged mass, falling onto a black hole, could be responsible for recently discovered ultraluminous X-ray bursts. The simulations show that final passage of a white dwarf near a black hole can cause a gamma-ray burst.Tomasz KarpiukMarek NikołajukMariusz GajdaMirosław BrewczykNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tomasz Karpiuk Marek Nikołajuk Mariusz Gajda Mirosław Brewczyk Modelling quantum aspects of disruption of a white dwarf star by a black hole
description	Abstract We study the final stages of the evolution of a binary system consisted of a black hole and a white dwarf star. We implement the quantum hydrodynamic equations and carry out numerical simulations. 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. Due to nonlinear effects, the accretion disk originated from the white dwarf becomes fragmented and the onset of a quantum turbulence with giant quantized vortices present in the bosonic component of the accretion disk is observed. The binary system ends its life in a spectacular way, revealing quantum features underlying the white dwarf star’s structure. We find a charged mass, falling onto a black hole, could be responsible for recently discovered ultraluminous X-ray bursts. The simulations show that final passage of a white dwarf near a black hole can cause a gamma-ray burst.
format	article
author	Tomasz Karpiuk Marek Nikołajuk Mariusz Gajda Mirosław Brewczyk
author_facet	Tomasz Karpiuk Marek Nikołajuk Mariusz Gajda Mirosław Brewczyk
author_sort	Tomasz Karpiuk
title	Modelling quantum aspects of disruption of a white dwarf star by a black hole
title_short	Modelling quantum aspects of disruption of a white dwarf star by a black hole
title_full	Modelling quantum aspects of disruption of a white dwarf star by a black hole
title_fullStr	Modelling quantum aspects of disruption of a white dwarf star by a black hole
title_full_unstemmed	Modelling quantum aspects of disruption of a white dwarf star by a black hole
title_sort	modelling quantum aspects of disruption of a white dwarf star by a black hole
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5adc672c546142fb8da205decdce5958
work_keys_str_mv	AT tomaszkarpiuk modellingquantumaspectsofdisruptionofawhitedwarfstarbyablackhole AT mareknikołajuk modellingquantumaspectsofdisruptionofawhitedwarfstarbyablackhole AT mariuszgajda modellingquantumaspectsofdisruptionofawhitedwarfstarbyablackhole AT mirosławbrewczyk modellingquantumaspectsofdisruptionofawhitedwarfstarbyablackhole
_version_	1718392323675521024

Modelling quantum aspects of disruption of a white dwarf star by a black hole

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