Effects of fluid composition on spherical flows around black holes

dc.contributor.author	Chattopadhyay, I.
dc.contributor.author	Ryu, D.
dc.date.accessioned	2009-06-12T11:10:18Z
dc.date.available	2009-06-12T11:10:18Z
dc.date.issued	2009-03-20
dc.identifier.uri	http://hdl.handle.net/123456789/42
dc.description.abstract	Steady, spherically symmetric, adiabatic accretion and wind flows around nonrotating black holes were studied for fully ionized, multicomponent fluids, which are described by a relativistic equation of state. We showed that the polytropic index depends on the temperature as well as on the composition of fluids, so the composition is important to the solutions of the flows. We demonstrated that fluids with different composition can produce dramatically different solutions, even if they have the same sonic point, or they start with the same specific energy or the same temperature. Then, we pointed that the Coulomb relaxation times can be longer than the dynamical time in the problem considered here, and discussed the implication.	en_US
dc.language.iso	en_US	en_US
dc.relation.ispartofseries	apj694-492
dc.subject	Accretion, Accretion disks – Black hole physics – Hydrodynamics – Relativity	en_US
dc.title	Effects of fluid composition on spherical flows around black holes	en_US
dc.type	Article	en_US