Turbulence, Dynamos, Accretion Disks, Pulsars and Collective Plasma Processes (eBook)
XIII, 342 Seiten
Springer Netherlands (Verlag)
978-1-4020-8868-1 (ISBN)
It is well established and appreciated by now that more than 99% of the baryonic matter in the universe is in the plasma state. Most astrophysical systems could be approximated as conducting fluids in a gravitational field. It is the combined effect of these two that gives rise to the mind boggling variety of configurations in the form of filaments, loops, jets and arches. The plasma structures that cannot last for more than a second or less in a laboratory remain intact for astronomical time and spatial scales in an astrophysical setting. The case in point is the well known extragalactic jets whose collimation and stability has remained an enigma inspite of the efforts of many for many long years. The high energy radiation sources such as the active galactic nuclei again summon the coherent plasma radiation processes for their exceptionally large output from regions of relatively small physical sizes. The generation of magnetic field, anomalous transport of angular momentum with decisive bearing on star formation processes, the ubiquitous MHD turbulence under conditions irreproducible in terrestrial laboratories are some of the generic issues still awaiting a concerted effort for their understanding. Quantum Plasmas, pair plasmas and pair-ion plasmas exist under extreme conditions in planetary interiors and exotic stars. In this workshop plasma physicists, astrophysicists and plasma astrophysicists are brought together to discuss these issues.
The Editor, Prof. S.S. Hasan is the Director of the Indian Institute of Astrophysics.
It is well established and appreciated by now that more than 99% of the baryonic matter in the universe is in the plasma state. Most astrophysical systems could be approximated as conducting fluids in a gravitational field. It is the combined effect of these two that gives rise to the mind boggling variety of configurations in the form of filaments, loops, jets and arches. The plasma structures that cannot last for more than a second or less in a laboratory remain intact for astronomical time and spatial scales in an astrophysical setting. The case in point is the well known extragalactic jets whose collimation and stability has remained an enigma inspite of the efforts of many for many long years. The high energy radiation sources such as the active galactic nuclei again summon the coherent plasma radiation processes for their exceptionally large output from regions of relatively small physical sizes. The generation of magnetic field, anomalous transport of angular momentum with decisive bearing on star formation processes, the ubiquitous MHD turbulence under conditions irreproducible in terrestrial laboratories are some of the generic issues still awaiting a concerted effort for their understanding. Quantum Plasmas, pair plasmas and pair-ion plasmas exist under extreme conditions in planetary interiors and exotic stars. In this workshop plasma physicists, astrophysicists and plasma astrophysicists are brought together to discuss these issues.
The Editor, Prof. S.S. Hasan is the Director of the Indian Institute of Astrophysics.
Preface 6
Contents 8
List of Contributors 11
Part I Astrophysical Turbulence 14
Aspects of Hydrodynamic Turbulence in Classical and Quantum Systems 15
Observations and Modeling of Turbulence in the Solar Wind 32
Power Spectra of the Fluctuations in the Solar Wind 45
Part II Astrophysical Dynamos 63
Alpha Effect in Partially Ionized Plasmas 64
Constraints on Dynamo Action 78
Planetary Dynamos 93
Part III Pulsar Radiation Mechanism 105
Pulsars as Fantastic Objects and Probes 106
Pulsar Radio Emission Geometry 119
Millisecond Pulsar Emission Altitude from Relativistic Phase Shift: PSR J0437-4715 142
Magnetosphere Structure and the Annular Gap Model of Pulsars 151
Wave Modes in the Magnetospheres of Pulsars and Magnetars 173
Polarization of Coherent Curvature Radiation in Pulsars 181
Part IV Quantum Plasmas 192
Nonlinear Quantum Plasma Physics 193
Dust Plasma Interactions in Space and Laboratory 215
Part V Accretion Disks 232
Magnetorotational Instability In Accretion Disks 233
Hybrid Viscosity and Magnetoviscous Instability in Hot, Collisionless Accretion Disks 249
Transonic Properties of Accretion Disk Around Compact Objects 260
Maximum Brightness Temperature for an Incoherent Synchrotron Radio Source 272
Nonlinear Jeans Instability in an Uniformly Rotating Gas 280
Part VI Solar and Space Plasmas 289
An Overview of the Magnetosphere, Substorms and Geomagnetic Storms 290
Monte Carlo Simulation of Scattering of Solar Radio Emissions 307
Evolution of Magnetic Helicity in NOAA 10923 Over Three Consecutive Solar Rotations 325
Stability of Double Layer in Multi-Ion Plasmas 332
| Erscheint lt. Verlag | 11.10.2008 |
|---|---|
| Reihe/Serie | Astrophysics and Space Science Proceedings |
| Zusatzinfo | XIII, 342 p. |
| Verlagsort | Dordrecht |
| Sprache | englisch |
| Themenwelt | Naturwissenschaften ► Physik / Astronomie ► Astronomie / Astrophysik |
| Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik | |
| Naturwissenschaften ► Physik / Astronomie ► Optik | |
| Naturwissenschaften ► Physik / Astronomie ► Plasmaphysik | |
| Technik ► Luft- / Raumfahrttechnik | |
| Schlagworte | Astophysical Plasmas • Astrophysical Turbulence • Galactic Dynamos • Geomagnetic field • Ionized Plasmas • Magnetic field • MHD • Plasma • Plasma Cosmology • Plasma processes • Quantum Plasmas |
| ISBN-10 | 1-4020-8868-X / 140208868X |
| ISBN-13 | 978-1-4020-8868-1 / 9781402088681 |
| Haben Sie eine Frage zum Produkt? |
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