Spectral Transitions in X-Ray Binaries(Session 1 : Galactic BH Binaries)
スポンサーリンク
概要
- 論文の詳細を見る
We systematically analyzed about a terabyte of data from Galactic binary systems to characterize how these spectra change as a function of mass accretion rate. With this volume of data we are able to identify the differences in behaviour of black holes and neutron stars, implying that black holes really do have an event horizon. The spectral evolution seen as a function of L/L_<Edd> can be linked to current state-of-the-art numerical simulations of accretion flows, and we develop qualitative and quantitative models of the spectral changes in all types of binary systems. The key ingredient of this picture is that the major hard-soft spectral transition is driven by a changing inner radius of the accretion disc. This also qualitatively explains the changes seen in the variability power spectra of these objects. This lays the foundation for a self-consistent, theoretically motivated framework in which to explain both the spectral and timing properties of accreting compact objects.
- 2004-11-15
著者
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Done Chris
Department Of Physics Durham University
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GIERLINSKI Marek
Department of Physics, University of Durham
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Gierlinski Marek
Department Of Physics University Of Durham:obserwatorium Astronomiczne Uniwersytetu Jagiellonskiego
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GIERLINSKI Marek
Department of Physics, University of Durham:Obserwatorium Astronomiczne Uniwersytetu Jagiellonskiego
関連論文
- Suzaku Results on Cygnus X-1 in the Low/Hard State
- Suzaku Wide-Band X-Ray Spectroscopy of the Seyfert 2 AGN in NGC 4945
- Suzaku Discovery of Absorption Lines from the Black Hole Transient 4U1630-472(Chapter 9. Stellar/Intermediate Mass Black Holes, The Extreme Universe in the Suzaku Era)
- Suzaku observation of two ultraluminous X-ray sources in NGC 1313
- Suzaku Discovery of Iron Absorption Lines in Outburst Spectra of the X-Ray Transient 4U 1630-472
- Understanding of X-Ray Spectra of Black Hole Binaries and Its Application to ULXs(Session 1 : Galactic BH Binaries)
- Spectral Study of GX 339-4 in the Low-Intensity State Observed with Ginga
- Spectral Transitions in X-Ray Binaries(Session 1 : Galactic BH Binaries)
- The Origin of the Soft Excess in High L/L_ AGN(Chapter 10. Super Massive Black Holes, The Extreme Universe in the Suzaku Era)
- Radiative Processes, Spectral States and Variability of Black-Hole Binaries(Session 4 : Theoretical/Numerial Approaches to the Accretion Physics)
- Accurate Modelling of Relativistic Iron Lines from Accretion Discs(Session 8 : Key Physical Evidence for BHs)
- Spectral and Timing Studies of Cyg X-1 in the Low/Hard State with Suzaku
- Understanding of X-Ray Spectra of Black Hole Binaries and Its Application to ULXs(Session 1 : Galactic BH Binaries)
- Spectral Transitions in X-Ray Binaries(Session 1 : Galactic BH Binaries)
- Accurate Modelling of Relativistic Iron Lines from Accretion Discs(Session 8 : Key Physical Evidence for BHs)
- Radiative Processes, Spectral States and Variability of Black-Hole Binaries(Session 4 : Theoretical/Numerial Approaches to the Accretion Physics)