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Visualizzazione post con etichetta surviving. Mostra tutti i post
Visualizzazione post con etichetta surviving. Mostra tutti i post

sabato 5 febbraio 2022

# astro: aprops of horrific encounters, how to survive inside a (virtual) black hole


<< As (eight stars skirt a black hole 1m times the mass of the Sun) approach, all are stretched and deformed by the black hole's gravity. Some are completely pulled apart into a long stream of gas, a cataclysmic phenomenon called a tidal disruption event. Others are only partially disrupted, retaining some of their mass and returning to their normal shapes after their horrific encounters. >>

<< These simulations, (..) are the first to combine the physical effects of Einstein's general theory of relativity with realistic stellar density models. The virtual stars range from about one-tenth to 10 times the Sun's mass. >>

<< The division between stars that fully disrupt and those that endure isn't simply related to mass. Instead, survival depends more on the star's density. >>

Jeanette Kazmierczak. Scientists fling model stars at a virtual black hole to see who survives. NASA's Goddard Space Flight Center. Nov 26, 2021.


<< This paper introduces a series of papers presenting a quantitative theory for the tidal disruption of main-sequence stars by supermassive black holes (the pericenter-dependence of tidal disruption properties for eight stellar masses (..) and six black hole masses (..). >>

Taeho Ryu, Julian Krolik, et al. Tidal Disruptions of Main-sequence Stars. I. Observable Quantities and Their Dependence on Stellar and Black Hole Mass. ApJ 904 98. Nov 25, 2020.


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keyword 'black hole' | 'astro' in FonT



keywords: astro, blackhole, tidal disruption, survival, surviving