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Alireza Khesali

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address: Department of Physics, Faculty of Basic Sciences,University of Mazandaran
Phone: 35343085

Research

Title
von Zeipel surfaces and convective instability of accretion discs in modified gravity
Type
JournalPaper
Keywords
black hole physics – gravitation – instabilities.
Year
2015
Journal MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
DOI
Researchers Najmeh Alipour Kafshgar ، Alireza Khesali ، Kourosh Nozari

Abstract

It is assumed that von Zeipel surfaces would play an important role in determining the structure and stability properties of equilibrium configuration of a barotropic fluid. The present study has investigated von Zeipel surfaces and instability of an accretion disc in modified gravity. The findings show that in the framework of modified gravity, the rate of mass accretion in an accretion disc is larger in the inner edge, middle region and the outer edge of the accretion disc much in the same way. However, in the scale of Solar system, von Zeipel surfaces with modified gravity are similar to the standard case.