Balbus PowerPoint PPT Presentations

Steven A. Balbus. Ecole Normale Sup rieure. Physics Department. Paris, France. IAS MRI Workshop ... The MAGNETOROTATIONAL INSTABILITY (MRI) has taught us that ...

The Magnetorotational Instability. 16 October 2004. Large Scale Computation in Astrophysics ... Jean-Pierre De Villiers (UVa; U. Calgary) Steven A. Balbus (UVa) ...

Simulations absence apparente de turbulence dans les coulments de type disque purement hydrodynamiques (Balbus, Hawley 1996, 1999) ( tout Reynolds ? ...

Prevention of planetesimal accretion beyond 50 AU due to MRI turbulence (Balbus et al. ... gravitational instability & planetesimal formation are possible ...

The National Archaeological Museum of Naples (MANN) is an important Italian archaeological museum, particularly for ancient Roman remains. Its collection includes works from Greek, Roman and Renaissance times, and especially Roman artifacts from nearby Pompeii, Stabiae and Herculaneum. It was formerly the Real Museo Borbonico ("Royal Bourbon Museum“)

Black Hole Accretion: MHD Simulations. Magneto-rotational Instability ... nature of flow near the black hole (marginally stable orbit, etc...

Cosmetics/skin treatments. Indirect Contact. Food packaging. ENVIRONMENTAL DEFENSE ... In-vitro tests of skin cells. CNT's cause oxidative stress in cultured ...

1. The Magnetothermal Instability and its Application to ... Magneto-Rotational. Magneto-Thermal. Keplerian Profile. Conserved Quantity: Angular Momentum ...

A Heino-Centric View of the History of Galactic Center Theory ... Spin, precession and variability of Sgr A*. Linear Polarization images near the event horizon ...

Marc Kuchner. Harvard-Smithsonian Center for Astrophysics. Keck ... TW Hydra, NICMOS. surface. star. rim. interior. 1500 K. Small Grain Sublimation ...

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

Title: PowerPoint Presentation Last modified by: Aleksandr Obabko Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles

Singular isothermal spheres have constant accretion rates ... Differential rotation stabilizes Jeans instability ... Jeans mass drops, hydrost. equil. reached ...

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

Title: Star formation - the accretion (luminosity) problem Author: Lee Hartmann Last modified by: Lee Hartmann Created Date: 6/6/1999 2:12:30 PM Document presentation ...

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 Magnetothermal Instability and its Application to Clusters of Galaxies Ian Parrish Advisor: James Stone Dept. of Astrophysical Sciences Princeton University/ UC ...

National Aeronautics and Space Administration Protostellar Disks: Birth, Life and Death Neal Turner Jet Propulsion Laboratory ...

1961-2 Hoyle, Fowler - radio sources are powered by ... 1964 Zel'dovich & Novikov, Salpeter et al - black holes. 1965 Dent - variability. More history ...

Christensson et al. (2001, PRE 64, 056405) helical vs. nonhelical. 5. Helical decay law: ... M. Christensson, M. Hindmarsh, A. Brandenburg: 2005, AN 326, 393. 7 ...

(Talk by C.K. Chan later today) The Closure Problem in MHD Turbulence ... Pessah, Chan, & Psaltis, 2006b. Hawley et al 95. Calibration of MRI Saturation with ...

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

Muduleya LEI HUANG @SINO-GERMAN. 1 ... Center for Astrophysics, USTC. Collaborators: Zhi-Qiang Shen, ... Magneto-Rotational-Instability (MRI) Mechanism ...

Maria Morandi, UT School of Public Health. George Delclos, ... Pyrene. 0.030. 2.385. 0.027. 3.093. Fluoranthene. 0.003. 0.973. 0.003. 0.751. Anthracene. 0.028 ...

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

a prominent accretion disk in the low-hard state of the black hole candidate: Truncated disk? There are always OUTLIERS! Accretion Mode in BL Lacs+RLQs (Wang ...

Grain Photoelectric Heating ... Gas remains isothermal in this regime, ultimately due to cooling of dust grains by IR emission. ...

Convective turbulence (Lin & Papaloizou 1980, Ryu & Goodman 1992, ... Ampere's Law. Ohm's Law. Conservation of momentum. Disc Model. Vertical Stratification ...

A Crab-like field of 1012 Gauss and a Crab-like rotation. of 33 ms are dynamically unimportant. ... m = 1 single spiral arm mode. Outward transport of angular ...

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

Hydrodynamics. and. fluid instabilities (See complementary handout) ... increasing j should be hydrodynamically stable. specific angular momentum ...

High order (6th order in space, 3rd order in time) Cache & memory efficient ... High resolution direct simulation. 5123 resolution. singular! 2563 (direct, new) ...

Black hole astrophysics in the new century

Magneto-hydrodynamic turbulence: from the ISM to discs. Axel ... Depends on Rm of vortical flow component. Bimodal: Rm=35 (w/o shocks), 70 (w/ shocks) ...

Title: Author: shibata Last modified by: Ryoji Matsumoto Created Date: 9/7/2003 3:09:43 PM

Essentially ALL protostellar cloud magnetic flux must be lost during star ... collimation. Alfven surface. Accretion leads to ejection. dM/dt (wind) = 0.1 dM/dt (acc) ...

Determine key differentiators of Houston air pollution health effects ... Houston Chronicle series on air toxics (Dina Cappiello) Mayor's new initiative: ...

1970-now) parametric description: ' -model' viscous force: F = t (Rd /dR), where t = cs2 ... waves: e.g. Advanced LIGO, VIRGO...Very promising, since Ns-NS can ...

The interaction of a giant planet with a disc with MHD turbulence II: The interaction of the planet with the disc Papaloizou & Nelson 2003, MNRAS 339 (4), 993

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

Aoccdrnig to rsceeacrh at Cmabirgde Uinrevtisy, ... The CZ is very nearly adiabatic, P=P( ), barotropic. ... (adiabatic) features of the SCZ are a consequence of ...

Thin Disk Accretion ( standard', alpha' ... Spherical accretion assumed collisional despite large mean free path. ... Accretion mechanism is known. ...

2001 Chandra & XMM-Newton. XMM doesn't see lines of 106K gas. XMM shows that deficit of photons at 1keV not due to internal absorption ...

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

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

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2005 10 18 40 4 30 5 10

Sources of data for human susceptibility ... Risk Assessors vs. Epidemiologists. Exposure. No infection. Asymptomatic. Symptomatic ...

Generic picture of an accreting system (pm,swift) A collapse of a rotating envelope ... Timing is good as SWIFT is to be launched soon. It used to be used ...

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

... in 2D dissipation rate. after saturation is sensitive to numerical dissipation: Code Test ... Numerical dissipation is ~1.5 times smaller with. CTU & 3rd ...

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

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Nils Erland Haugen (Univ. Trondheim) Wolfgang Dobler ... In the days before helioseismology. Angular velocity (at 4o latitude): very young spots: 473 nHz ...

Observation of magnetocoriolis waves in the Princeton MRI Experiment