3,934 Accretion PPTs View free & download

Advection-dominated Accretion: PowerPoint PPT Presentation

Advection-dominated Accretion: - Advection-dominated Accretion: From Sgr A* to Other Low-Luminosity AGNs Feng Yuan Shanghai Astronomical Observatory

Advection-dominated Accretion: From Sgr A* to Other Low-Luminosity AGNs Feng Yuan Shanghai Astronomical Observatory

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Accretion - Roche Lobe Overflow. Compact star M , normal star M with M2 M1 ... Process much less efficient than Roche lobe overflow, but mass loss rates high ...

Roche Lobe Overflow. Compact star M , normal star M with M2 M1 ... Process much less efficient than Roche lobe overflow, but mass loss rates high ...

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Accretion Power in Astrophysics PowerPoint PPT Presentation

Accretion Power in Astrophysics - Accretion Power in Astrophysics Andrew King Theoretical Astrophysics Group, University of Leicester, UK Accreting Black Holes in a Nearby Galaxy (M101) Accreting ...

Accretion Power in Astrophysics Andrew King Theoretical Astrophysics Group, University of Leicester, UK Accreting Black Holes in a Nearby Galaxy (M101) Accreting ...

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1. accretion disk - PowerPoint PPT Presentation

1. accretion disk - - 1. accretion disk - flat disk of matter spiraling down onto the surface of a star. Often from a companion star.

1. accretion disk - flat disk of matter spiraling down onto the surface of a star. Often from a companion star.

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Accretion and reflection PowerPoint PPT Presentation

Accretion and reflection - A reflection component from the disc potentially could explain both the positive ... years, many examples of disc reflection from BH binaries have been detected ...

A reflection component from the disc potentially could explain both the positive ... years, many examples of disc reflection from BH binaries have been detected ...

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ULX accretion state PowerPoint PPT Presentation

ULX accretion state - D Swartz (MSFC), A Goncalves (Paris-M), R Mushotzky, T ... ULXs may have a persistently. super-Edd accretion rate. High/soft. Very high. ultraluminous ...

D Swartz (MSFC), A Goncalves (Paris-M), R Mushotzky, T ... ULXs may have a persistently. super-Edd accretion rate. High/soft. Very high. ultraluminous ...

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Accretion%20vs%20Star%20Formation PowerPoint PPT Presentation

Accretion%20vs%20Star%20Formation - Accretion onto the SMBH releases electromagnetic radiations creates quasars and AGN ... undergoing inefficient accretion ... out of plane of accretion disk ...

Accretion onto the SMBH releases electromagnetic radiations creates quasars and AGN ... undergoing inefficient accretion ... out of plane of accretion disk ...

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Active Galactic Nuclei=Black Hole Accretion Disk PowerPoint PPT Presentation

Active Galactic Nuclei=Black Hole Accretion Disk - Title: Author: Ryoji Matsumoto Last modified by: Ryoji Matsumoto Created Date: 5/22/2000 1:55:02 PM Document presentation format

Title: Author: Ryoji Matsumoto Last modified by: Ryoji Matsumoto Created Date: 5/22/2000 1:55:02 PM Document presentation format

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Black Hole Accretion PowerPoint PPT Presentation

Black Hole Accretion - Advection-Dominated Accretion Flow, ADAF (Ichimaru 1977; Narayan & Yi 1994, 1995; ... We suggest that advection-dominated accretion may provide an explanation for ...

Advection-Dominated Accretion Flow, ADAF (Ichimaru 1977; Narayan & Yi 1994, 1995; ... We suggest that advection-dominated accretion may provide an explanation for ...

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Heat Transfer from Ice Accretion PowerPoint PPT Presentation

Heat Transfer from Ice Accretion - Scholar's Day: Aeronautical & Processing Applications. Rogers Engineering Building ... Chord- Distance between the leading and trailing edge of a wing, ...

Scholar's Day: Aeronautical & Processing Applications. Rogers Engineering Building ... Chord- Distance between the leading and trailing edge of a wing, ...

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Accretion Power in Astrophysics - If accretor has mass M and radius R, gravitational energy release/mass is ... Launching and collimation not understood probably requires. toroidal magnetic field ...

If accretor has mass M and radius R, gravitational energy release/mass is ... Launching and collimation not understood probably requires. toroidal magnetic field ...

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Black Holes in the Early Universe Accretion and Feedback PowerPoint PPT Presentation

Black Holes in the Early Universe Accretion and Feedback - Accretion and Feedback Geoff Bicknell & Alex Wagner Research School of Astronomy & Astrophysics Australian National University

Accretion and Feedback Geoff Bicknell & Alex Wagner Research School of Astronomy & Astrophysics Australian National University

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Accretion%20Disks%20in%20AGNs PowerPoint PPT Presentation

Accretion%20Disks%20in%20AGNs - Simulation Analysis and Theory: Julian Krolik. AGNSPEC ... They will soften the spectrum. Actual photosphere is therefore complex and irregular, ...

Simulation Analysis and Theory: Julian Krolik. AGNSPEC ... They will soften the spectrum. Actual photosphere is therefore complex and irregular, ...

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Modeling Supercritical Accretion Flow Shin Mineshige (Kyoto) PowerPoint PPT Presentation

Modeling Supercritical Accretion Flow Shin Mineshige (Kyoto) - Title: Author: Shin Mineshige Last modified by: minesige Created Date: 9/18/2000 10:11:14 AM Document presentation format

Title: Author: Shin Mineshige Last modified by: minesige Created Date: 9/18/2000 10:11:14 AM Document presentation format

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Dark energy accretion onto black holes PowerPoint PPT Presentation

Dark energy accretion onto black holes - Solution for a stationary accretion of the relativistic perfect fluid with an ... Accretion of phantom energy (? p 0) is accompanied by the gradual decrease of ...

Solution for a stationary accretion of the relativistic perfect fluid with an ... Accretion of phantom energy (? p 0) is accompanied by the gradual decrease of ...

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Reflections on Accretion Disks PowerPoint PPT Presentation

Reflections on Accretion Disks - Fabian et al. (2000) Inclination angle. The red-wing primarily determined by inner radius ... MCG 6-30-15; Fabian et al. (2002) ...

Fabian et al. (2000) Inclination angle. The red-wing primarily determined by inner radius ... MCG 6-30-15; Fabian et al. (2002) ...

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GRB accretion disks PowerPoint PPT Presentation

GRB accretion disks - ... Neutron-fed blast wave (Beloborodov 2003) GRB blast wave at the deceleration ... later survived neutrons leak out of the ejecta and change the blast wave. mechanism ...

... Neutron-fed blast wave (Beloborodov 2003) GRB blast wave at the deceleration ... later survived neutrons leak out of the ejecta and change the blast wave. mechanism ...

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Probing Accretion and Spacetime with Black Hole Binaries PowerPoint PPT Presentation

Probing Accretion and Spacetime with Black Hole Binaries - Stellar Atmospheres: Disk Annuli vs. Stellar Envelopes ... Annuli are determined by, Teff, Q (where g=Q z), , the composition, and the ...

Stellar Atmospheres: Disk Annuli vs. Stellar Envelopes ... Annuli are determined by, Teff, Q (where g=Q z), , the composition, and the ...

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RadiationDominated Accretion Disks PowerPoint PPT Presentation

RadiationDominated Accretion Disks - Shakura-Sunyaev Picture. Radiation-MHD Equations. Heating. Cooling. X-Ray Reflection. Summary ... Effects on X-Ray Reflection Variability. Assumptions tested: ...

Shakura-Sunyaev Picture. Radiation-MHD Equations. Heating. Cooling. X-Ray Reflection. Summary ... Effects on X-Ray Reflection Variability. Assumptions tested: ...

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Accretion in Binaries PowerPoint PPT Presentation

Accretion in Binaries - Burst Energetics ... If Type I bursts are due to thermal nuclear processes, a ... Burst oscillations and coherent persistent oscillations in SAX J1808.4-3658 are ...

Burst Energetics ... If Type I bursts are due to thermal nuclear processes, a ... Burst oscillations and coherent persistent oscillations in SAX J1808.4-3658 are ...

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Accretion onto the Supermassive Black Hole in our Galactic Center PowerPoint PPT Presentation

Accretion onto the Supermassive Black Hole in our Galactic Center - ... ambient conditions around BH Feeding the monster Stellar dynamics & star formation in Galactic Nuclei Useful laboratory for other ... Presentation Last ...

... ambient conditions around BH Feeding the monster Stellar dynamics & star formation in Galactic Nuclei Useful laboratory for other ... Presentation Last ...

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INPE Advanced Course on Compact Objects Course IV: Accretion Processes in Neutron Stars PowerPoint PPT Presentation

INPE Advanced Course on Compact Objects Course IV: Accretion Processes in Neutron Stars - INPE Advanced Course on Compact Objects Course IV: Accretion Processes in Neutron Stars & Black Holes Ron Remillard Kavli Center for Astrophysics and Space Research

INPE Advanced Course on Compact Objects Course IV: Accretion Processes in Neutron Stars & Black Holes Ron Remillard Kavli Center for Astrophysics and Space Research

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Growth of Droplets by Accretion PowerPoint PPT Presentation

Growth of Droplets by Accretion - Because drops of different sizes have different terminal speeds, larger drops ... Rain results when a few fortunate drops fall through regions of locally high ...

Because drops of different sizes have different terminal speeds, larger drops ... Rain results when a few fortunate drops fall through regions of locally high ...

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On the convective instability of hot radiative accretion flow PowerPoint PPT Presentation

On the convective instability of hot radiative accretion flow - ... Black hole growth Black hole spin evolution Previous works neglect radiative cooling Radiation is often very important, ... entropy increases inward ...

... Black hole growth Black hole spin evolution Previous works neglect radiative cooling Radiation is often very important, ... entropy increases inward ...

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Accretion disk structure PowerPoint PPT Presentation

Accretion disk structure - ... (AD) around a star can be considered as rings or annuli of blackbody emission. ... But not all of this has to be lost (ie radiated from) the accretion disk there ...

... (AD) around a star can be considered as rings or annuli of blackbody emission. ... But not all of this has to be lost (ie radiated from) the accretion disk there ...

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Protoplanetary Disks as Accretion Disks PowerPoint PPT Presentation

Protoplanetary Disks as Accretion Disks - Collapse of Jeans-unstable dense clumps of molecular gas. ... Magneto-rotational Instability (MRI) is the most likely agent, BUT ...

Collapse of Jeans-unstable dense clumps of molecular gas. ... Magneto-rotational Instability (MRI) is the most likely agent, BUT ...

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MagneticallyDominated Jet and Accretion Flows PowerPoint PPT Presentation

MagneticallyDominated Jet and Accretion Flows - Helical Kink Instabilities in Propagating Poynting-Flux-Dominated Jets ... The helical kink (m=1) or screw mode is, by far, the dominant unstable current ...

Helical Kink Instabilities in Propagating Poynting-Flux-Dominated Jets ... The helical kink (m=1) or screw mode is, by far, the dominant unstable current ...

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Accretion in Binaries II PowerPoint PPT Presentation

Accretion in Binaries II - Matter in wind will accrete if its speed is less than the escape ... Cyclotron Lines. X-Ray Pulsar Cen X-3. Pulses are modulated at orbital period of 2.09 days ...

Matter in wind will accrete if its speed is less than the escape ... Cyclotron Lines. X-Ray Pulsar Cen X-3. Pulses are modulated at orbital period of 2.09 days ...

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Black Hole Accretion Disk Models PowerPoint PPT Presentation

Black Hole Accretion Disk Models - Di Matteo, Perna, & Narayan 2002. Accretion Disks in General Relativity ... Thick lines (di Matteo, Perna & Narayan 2002), Thin Lines (Popham et al. 1999) ...

Di Matteo, Perna, & Narayan 2002. Accretion Disks in General Relativity ... Thick lines (di Matteo, Perna & Narayan 2002), Thin Lines (Popham et al. 1999) ...

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Probing Quasar Accretion Disks PowerPoint PPT Presentation

Probing Quasar Accretion Disks - Probing Quasar Accretion Disks. Rhaana Starling. Dept. of Space & Climate Physics ... We cannot see the central black hole, but we can observe the disk of ...

Probing Quasar Accretion Disks. Rhaana Starling. Dept. of Space & Climate Physics ... We cannot see the central black hole, but we can observe the disk of ...

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The Story of Thin Accretion Disks PowerPoint PPT Presentation

The Story of Thin Accretion Disks - The Story of Thin Accretion Disks. 2. An Outline. Why ... Sakura & Sunyaev's (1973) Turbulence Scale ~ H so. Then Far from the. BH Horizon. 6 November, 2002 ...

The Story of Thin Accretion Disks. 2. An Outline. Why ... Sakura & Sunyaev's (1973) Turbulence Scale ~ H so. Then Far from the. BH Horizon. 6 November, 2002 ...

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Accretion Signatures from Massive Young Stellar Objects PowerPoint PPT Presentation

Accretion Signatures from Massive Young Stellar Objects - Accretion Signatures from Massive Young Stellar Objects. Bob Blum. Cerro Tololo, La Serena, Chile ... Goldader & Wynn-Williams (1994) Okumura et al. (2000) W51 RS7 ...

Accretion Signatures from Massive Young Stellar Objects. Bob Blum. Cerro Tololo, La Serena, Chile ... Goldader & Wynn-Williams (1994) Okumura et al. (2000) W51 RS7 ...

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Mass Accretion onto T Tauri Stars PowerPoint PPT Presentation

Mass Accretion onto T Tauri Stars - Classical T Tauri Star (Goodson et al. 1997) ... COUP: X-ray Christmas Tree. COUP (Chandra Orion Ultra-deep Project). Time lapse movie of observations many flares. ...

Classical T Tauri Star (Goodson et al. 1997) ... COUP: X-ray Christmas Tree. COUP (Chandra Orion Ultra-deep Project). Time lapse movie of observations many flares. ...

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Dependence of MultiTransonic Accretion on Black Hole Spin PowerPoint PPT Presentation

Dependence of MultiTransonic Accretion on Black Hole Spin - rout rmid rin. rout, rin : X-type sonic points ... General astrophysical accretion Flow thru rout. Flow thru rin possible only in case of a shock ...

rout rmid rin. rout, rin : X-type sonic points ... General astrophysical accretion Flow thru rout. Flow thru rin possible only in case of a shock ...

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Dependence of MultiTransonic Accretion on Black Hole Spin - Study variation of dynamic and thermodynamic properties of accretion flow very ... Equations of motion apply to equatorial plane of BH ...

Study variation of dynamic and thermodynamic properties of accretion flow very ... Equations of motion apply to equatorial plane of BH ...

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General Relativistic MHD Simulations of Black Hole Accretion Disks PowerPoint PPT Presentation

General Relativistic MHD Simulations of Black Hole Accretion Disks - Julian H. Krolik, Shigenobu Hirose (JHU) Charles F. Gammie (Illinois) ... Hirose, Krolik, De Villiers, & Hawley 2004, ApJ, 606, 1083 ...

Julian H. Krolik, Shigenobu Hirose (JHU) Charles F. Gammie (Illinois) ... Hirose, Krolik, De Villiers, & Hawley 2004, ApJ, 606, 1083 ...

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Accretion onto Black Holes PowerPoint PPT Presentation

Accretion onto Black Holes - Collaborators: Josh Goldston, Ramesh Narayan, Feng Yuan, Igor Igumenshchev. Two Sources of Variability. Dynamical: , T, & B in ... ( neglecting Faraday effects) ...

Collaborators: Josh Goldston, Ramesh Narayan, Feng Yuan, Igor Igumenshchev. Two Sources of Variability. Dynamical: , T, & B in ... ( neglecting Faraday effects) ...

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Xray Observation of Black Hole Accretion Disks PowerPoint PPT Presentation

Xray Observation of Black Hole Accretion Disks - ... Black Hole Candidates ... Black hole mass may be constrained from X-ray ... Such a massive black holes may not exist in our Galaxy, but not uncommon ...

... Black Hole Candidates ... Black hole mass may be constrained from X-ray ... Such a massive black holes may not exist in our Galaxy, but not uncommon ...

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A Numerical Approach to Model the Accretion of Icelandic Crust PowerPoint PPT Presentation

A Numerical Approach to Model the Accretion of Icelandic Crust - Thickness of the Icelandic crust from Gravity and seismic Data ... Extrated material is fed back into the model. Width of emplacement zone 50 km (Gau ) ...

Thickness of the Icelandic crust from Gravity and seismic Data ... Extrated material is fed back into the model. Width of emplacement zone 50 km (Gau ) ...

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Accretion of terrestrial planets PowerPoint PPT Presentation

Accretion of terrestrial planets - Runaway growth in the Asteroid belt in the presence of Jupiter ... Giant impact phase. A few tens of mars-size protoplanets form after the runaway phase ...

Runaway growth in the Asteroid belt in the presence of Jupiter ... Giant impact phase. A few tens of mars-size protoplanets form after the runaway phase ...

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XRay Pulsars: Accretion and Variability PowerPoint PPT Presentation

XRay Pulsars: Accretion and Variability - X-Ray Pulsars: Accretion and Variability. These talks will occur weekly ... Akshay Kulkarni. Cornell University. Wednesday August 3 @ 3pm in SS 301 ...

X-Ray Pulsars: Accretion and Variability. These talks will occur weekly ... Akshay Kulkarni. Cornell University. Wednesday August 3 @ 3pm in SS 301 ...

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Local Behavior of MRI in Accretion Disks PowerPoint PPT Presentation

Local Behavior of MRI in Accretion Disks - Ohmic Dissipation. Nonlinear Evolution. Time Evolution of Magnetic Fields ... Fluctuation-Dissipation Relation. Saturation Level. Dependence on Physical Quantities: ...

Ohmic Dissipation. Nonlinear Evolution. Time Evolution of Magnetic Fields ... Fluctuation-Dissipation Relation. Saturation Level. Dependence on Physical Quantities: ...

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Numerical simulation of astrophysical jets and accretion disks PowerPoint PPT Presentation

Numerical simulation of astrophysical jets and accretion disks - Understanding the physics of accretion-ejection flows. is central to the understanding of ... Jet acceleration and collimation. Emission from shocks in YSO jets ...

Understanding the physics of accretion-ejection flows. is central to the understanding of ... Jet acceleration and collimation. Emission from shocks in YSO jets ...

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Accretion disks, BLR and compact jets in AGN PowerPoint PPT Presentation

Accretion disks, BLR and compact jets in AGN - Accretion disks, BLR and compact jets in AGN. Third Granada 'Tapas' ... Molecular torus: 105 Rg 1 pc. Narrow line region: 106 Rg 10 pc. A. Lobanov ...

Accretion disks, BLR and compact jets in AGN. Third Granada 'Tapas' ... Molecular torus: 105 Rg 1 pc. Narrow line region: 106 Rg 10 pc. A. Lobanov ...

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The Accretion History of the Milky Way PowerPoint PPT Presentation

The Accretion History of the Milky Way - Andres Meza B. Nordstrom. Julio F. Navarro. The Hierarchical Formation of a Disk Galaxy ... The Nordstrom et al (2004) sample shows clear evidence for the presence of ...

Andres Meza B. Nordstrom. Julio F. Navarro. The Hierarchical Formation of a Disk Galaxy ... The Nordstrom et al (2004) sample shows clear evidence for the presence of ...

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Recording obscured accretion across cosmic time PowerPoint PPT Presentation

Recording obscured accretion across cosmic time - Interpretation: AGN obscured at their birth (Fabian 1998, Hopkins 06) Number of C-thick AGN: largely unknown but see talks by Fabian & Comastri. 2-3:1. 4:1 ...

Interpretation: AGN obscured at their birth (Fabian 1998, Hopkins 06) Number of C-thick AGN: largely unknown but see talks by Fabian & Comastri. 2-3:1. 4:1 ...

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Spectral Line Shapes from Black Hole Accretion Disks PowerPoint PPT Presentation

Spectral Line Shapes from Black Hole Accretion Disks - (pictures from http://www.seasky.org/cosmic/sky7a09.html and http://www.nasa.gov ) ... Observation angle (picture from http://web1.pas.rochester.edu/~dmw/ast102 ...

(pictures from http://www.seasky.org/cosmic/sky7a09.html and http://www.nasa.gov ) ... Observation angle (picture from http://web1.pas.rochester.edu/~dmw/ast102 ...

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The Accretion Disk Temperature Continuum Color Relation in Quasars PowerPoint PPT Presentation

The Accretion Disk Temperature Continuum Color Relation in Quasars - The Accretion Disk Temperature - Continuum Color Relation in Quasars. Erin ... Na ve expectation from freshman physics hotter blackbody is bluer in color ...

The Accretion Disk Temperature - Continuum Color Relation in Quasars. Erin ... Na ve expectation from freshman physics hotter blackbody is bluer in color ...

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X-ray spectral index correlations vs mass accretion rate in black hole binaries in their different spectral states. Theory vs observations PowerPoint PPT Presentation

X-ray spectral index correlations vs mass accretion rate in black hole binaries in their different spectral states. Theory vs observations - Title: PowerPoint Presentation Author: Lev Titarchuk Last modified by: Lev Titarchuk Created Date: 6/28/2006 9:16:59 AM Document presentation format

Title: PowerPoint Presentation Author: Lev Titarchuk Last modified by: Lev Titarchuk Created Date: 6/28/2006 9:16:59 AM Document presentation format

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QuasiPeriodic Oscillations in accretion onto compact objects PowerPoint PPT Presentation

QuasiPeriodic Oscillations in accretion onto compact objects - van der Klis, M. 2000, ARAA, 38:717-60 ... Atoll Sources. L~ (0.02-0.1) L_Edd ... atoll source. Z source. black hole candidate. kHz QPOs: Black Hole Candidates ...

van der Klis, M. 2000, ARAA, 38:717-60 ... Atoll Sources. L~ (0.02-0.1) L_Edd ... atoll source. Z source. black hole candidate. kHz QPOs: Black Hole Candidates ...

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Global 3D MHD Simulations of Optically Thin Black Hole Accretion Disks PowerPoint PPT Presentation

Global 3D MHD Simulations of Optically Thin Black Hole Accretion Disks - Global Three-dimensional MHD Simulations of Black Hole Accretion Flows ... We carried out global 3D MHD simulations of radiatively inefficient black hole ...

Global Three-dimensional MHD Simulations of Black Hole Accretion Flows ... We carried out global 3D MHD simulations of radiatively inefficient black hole ...

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Multiwavelength spectroscopy of high accretion rate polars PowerPoint PPT Presentation

Multiwavelength spectroscopy of high accretion rate polars - Multiwavelength spectroscopy of high accretion rate polars. Axel Schwope ... NONE of the 'classical bright polars was observed in a high accretion state ...

Multiwavelength spectroscopy of high accretion rate polars. Axel Schwope ... NONE of the 'classical bright polars was observed in a high accretion state ...

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MagneticallyDominated Jet and Accretion Flows - Magnetically-Dominated Accretion Flows Around Black Holes (MDAFs) ... But MDAFs can be 10 times larger than magnetospheres discussed generally heretofore ...

Magnetically-Dominated Accretion Flows Around Black Holes (MDAFs) ... But MDAFs can be 10 times larger than magnetospheres discussed generally heretofore ...

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Accretion-ejection and magnetic star-disk interaction: a numerical perspective PowerPoint PPT Presentation

Accretion-ejection and magnetic star-disk interaction: a numerical perspective - collimation (magnetic 'hoop. stress') and pushes the outflow. Framework: MHD. Conservation of: ... Current circuits - collimation ...

collimation (magnetic 'hoop. stress') and pushes the outflow. Framework: MHD. Conservation of: ... Current circuits - collimation ...

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Searching for Young Stellar Objects with Accretion Disks in L1689N PowerPoint PPT Presentation

Searching for Young Stellar Objects with Accretion Disks in L1689N - A YSO is a star in its early stages of development. ... final statistical filter (i.e. a color-magnitude diagram), which is shown here. ...

A YSO is a star in its early stages of development. ... final statistical filter (i.e. a color-magnitude diagram), which is shown here. ...

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OneDimensional Accretion Disk Model with Inflow PowerPoint PPT Presentation

OneDimensional Accretion Disk Model with Inflow - The thin accretion disk models describes a cooling-dominated flow in which the ... model provides the picture of how gases flow near the vicinity of a black hole ...

The thin accretion disk models describes a cooling-dominated flow in which the ... model provides the picture of how gases flow near the vicinity of a black hole ...

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Accretion PowerPoint PPT Presentations