General Relativistic Radiative Transfer and GeneralRelativistic MHD Simulations of Accretion and Outflows of Black Holes

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We calculate the emission from relativistic flows in black hole systems using a fully general relativistic radiative transfer formulation, with flow structures obtained by general relativistic magneto-hydrodynamic simulations. We consider thermal free-free emission and thermal synchrotron emission. Bright filament-like features protrude (visually) from the accretion disk surface, which are enhancements of synchrotron emission where the magnetic field roughly aligns with the line-of-sight in the co-moving frame. The features move back and forth as the accretion flow evolves, but their visibility and morphology are robust. We propose that variations and drifts of the features produce certain X-ray quasi-periodic oscillations (QPOs) observed ... continued below

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10 pages

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Fuerst, Steven V.; Mizuno, Yosuke; Nishikawa, Ken-Ichi & Wu, Kinwah January 5, 2007.

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We calculate the emission from relativistic flows in black hole systems using a fully general relativistic radiative transfer formulation, with flow structures obtained by general relativistic magneto-hydrodynamic simulations. We consider thermal free-free emission and thermal synchrotron emission. Bright filament-like features protrude (visually) from the accretion disk surface, which are enhancements of synchrotron emission where the magnetic field roughly aligns with the line-of-sight in the co-moving frame. The features move back and forth as the accretion flow evolves, but their visibility and morphology are robust. We propose that variations and drifts of the features produce certain X-ray quasi-periodic oscillations (QPOs) observed in black-hole X-ray binaries.

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10 pages

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http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-12270.html

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  • Journal Name: Astrophys.J.

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  • Report No.: SLAC-PUB-12270
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 896925
  • Archival Resource Key: ark:/67531/metadc889358

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  • January 5, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • July 25, 2017, 4:13 p.m.

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Fuerst, Steven V.; Mizuno, Yosuke; Nishikawa, Ken-Ichi & Wu, Kinwah. General Relativistic Radiative Transfer and GeneralRelativistic MHD Simulations of Accretion and Outflows of Black Holes, article, January 5, 2007; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc889358/: accessed April 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.