Loss cone refilling by flyby encounters » książka
Loss cone refilling by flyby encounters
ISBN-13: 9783639164558 / Angielski / Miękka / 2009 / 140 str.
A gap in phase-space, the loss cone (LC), is opened up by a supermassive black hole (MBH) as it disrupts or accretes stars in a galactic centre. If a star enters the LC then, depending on its properties, its interaction with the MBH will either generate a luminous electromagnetic flare or give rise to gravitational radiation, both of which are expected to have directly observable consequences. The thesis begins with a brief review of dynamical modelling collisionless galaxies. Then the general scheme is developed to construct high-resolution N-body models. Next, a suit of optimized model and code, both having high-resolution at the centre, are used follow the evolution of flyby encounters for a broad range of satellite parameters. The penultimate chapter describes how the findings are used to predict a MBH fuelling rate driven by orbiting substructures within the dark matter halo. Finally, I summarize the findings and provide some future work.
A gap in phase-space, the loss cone (LC), is openedup by a supermassive black hole (MBH) as it disruptsor accretes stars in a galactic centre. If a starenters the LC then, depending on its properties, itsinteraction with the MBH will either generate aluminous electromagnetic flare or give rise togravitational radiation, both of which are expectedto have directly observable consequences.The thesis begins with a brief review of dynamicalmodelling collisionless galaxies. Then the generalscheme is developed to construct high-resolutionN-body models. Next, a suit of optimized model andcode, both having high-resolution at the centre, areused follow the evolution of flyby encounters for abroad range of satellite parameters. The penultimatechapter describes how the findings are used topredict a MBH fuelling rate driven by orbitingsubstructures within the dark matter halo. Finally, Isummarize the findings and provide some future work.
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