Accretion Power in Astrophysics
Accretion Power in Astrophysics examines accretion as a source of energy in both binary star systems containing compact objects, and in active galactic nuclei. Assuming a basic knowledge of physics, the authors describe the physical processes at work in accretion discs and other accretion flows. The first three chapters explain why accretion is a source of energy, and then present the gas dynamics and plasma concepts necessary for astrophysical applications. The next three chapters then develop accretion in stellar systems, including accretion onto compact objects. Further chapters give extensive treatment of accretion in active galactic nuclei, and describe thick accretion discs. A new chapter discusses recently discovered accretion flow solutions. The third edition is greatly expanded and thoroughly updated. New material includes a detailed treatment of disc instabilities, irradiated discs, disc warping, and general accretion flows. The treatment is suitable for advanced undergraduates, graduate students and researchers.
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absorption accretion disc accretion flow accretion rate active galactic nuclei ADAF advection angular momentum approximation assume astrophysical binary systems black hole blackbody blobs bursts central Chapter collisions column compact component constant continuum cooling curve density discussion dominated dwarf novae effects electrons emission lines emitted energy equation equilibrium erg s~1 estimate fieldlines fluid flux frequency galaxies given gradients gravitational hard X-ray heating hence infall instability ionization ions Keplerian low-mass X-ray binaries luminosity magnetic field motion neutron star observed obtained optical depth optically thick orbital outburst parameter particles photons plasma polarization problem quasars radiation pressure radiative radii radius ratio redshift relativistic result Roche lobe rotation scattering Section Seyfert shock soft X-ray soft X-ray transients solutions specific angular momentum spectra spectrum spherical steady stellar structure surface synchrotron temperature thermal thick discs thin disc timescale torque Type variables vertical viscosity white dwarf