Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-02-03
Astronomy and Astrophysics
Astrophysics
Final version accepted for publication in the Astrophysical Journal Letters (ApJL). A considerable part of the paper is almost
Scientific paper
10.1086/375615
Using a generalized non-spherical, multi-transonic accretion flow model, we analytically calculate the normalized QPO frequency ${\bar {\bf {\nu}}}_{qpo}$ of galactic black hole candidates in terms of dynamical flow variables and self-consistently study the dependence of ${\bar {\bf {\nu}}}_{qpo}$ on such variables. Our results are in fairly close agreement with the observed QPO frequencies of GRS 1915+105. We find that ${\bar {\bf {\nu}}}_{qpo}$ is quite sensitive to various parameters describing the black hole accretion flow containing dissipative and non-dissipative shock waves. Thus the QPO phenomena is, {\it indeed}, regulated by `shocked' black hole accretion, and, for the first time, we establish a definitive connection between the QPO frequency and the properties of advective BH accretion flows. This information may provide the explanation of some important observations of galactic micro quasars.
No associations
LandOfFree
Role of shocked accretion flows in regulating the QPO of galactic black hole candidates does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Role of shocked accretion flows in regulating the QPO of galactic black hole candidates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Role of shocked accretion flows in regulating the QPO of galactic black hole candidates will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-349965