Tidal Disruption of a Solar‐Type Star by a Supermassive Black Hole | Zendy

Shai Ayal | Zendy; Mario Livio | Zendy; Tsvi Piran | Zendy

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Tidal Disruption of a Solar‐Type Star by a Supermassive Black Hole

Author(s) -

Shai Ayal,

Mario Livio,

Tsvi Piran

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/317835

Subject(s) - supermassive black hole , physics , solar mass , astrophysics , astronomy , black hole (networking) , supernova , intermediate mass black hole , accretion (finance) , star (game theory) , galaxy , computer network , routing protocol , routing (electronic design automation) , computer science , link state routing protocol

We study the long term evolution of a solar type star that is being disruptedby a super massive (10^6 solar mass) black hole. The evolution is followed fromthe disruption event, which turns the star into a long thin stream of gas, tothe point where some of this gas returns to pericenter and begins its secondorbit around the black hole. Following the evolution for this long allows us todetermine the amount of mass that is accreted by the black hole. We find thatapproximately 75% of the returning mass is not accreted but instead becomesunbound, following the large compression characterizing the return topericenter. The impact of a tidal disruption on the surrounding gas maytherefore be like that of two consecutive supernove-type events.

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