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Author: K.N. Nagendra
Publisher: Springer Science & Business Media
ISBN: 9401593299
Category : Science
Languages : en
Pages : 553
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Book Description
Novel instruments for high-precision imaging polarimetry have opened new possibilities, including for exploring effects in radiative scattering, atomic physics, spectral line formation, and radiative transfer. This volume gives a comprehensive and up-to-date account of this rapidly evolving and interdisciplinary field of science.
Author: K.N. Nagendra
Publisher: Springer Science & Business Media
ISBN: 9401593299
Category : Science
Languages : en
Pages : 553
Get Book Here
Book Description
Novel instruments for high-precision imaging polarimetry have opened new possibilities, including for exploring effects in radiative scattering, atomic physics, spectral line formation, and radiative transfer. This volume gives a comprehensive and up-to-date account of this rapidly evolving and interdisciplinary field of science.
Author: Jan Olof Stenflo
Publisher: Springer Science & Business Media
ISBN: 940090231X
Category : Science
Languages : en
Pages : 434
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Book Description
Much progress has been made in recent years in understanding the complex physics of polarized radiation in the sun and stars. This physics includes vector radiative transfer and spectral line formation in the presence of magnetic fields, scattering theory and coherence effects, partial redistribution and turbulent magnetic fields, numerical techniques and Stokes inversion, as well as concepts for polarimetric imaging with a precision limited only by photon statistics. The present volume gives a comprehensive and up-to-date account of this rapidly evolving field of science.
Author: K.N. Nagendra
Publisher: Springer Science & Business Media
ISBN: 9780792358145
Category : Science
Languages : en
Pages : 558
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Book Description
Novel instruments for high-precision imaging polarimetry have opened new possibilities, including for exploring effects in radiative scattering, atomic physics, spectral line formation, and radiative transfer. This volume gives a comprehensive and up-to-date account of this rapidly evolving and interdisciplinary field of science.
Author: Jan Olof Stenflo
Publisher: Springer Science & Business Media
ISBN: 9401582467
Category : Science
Languages : en
Pages : 401
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Book Description
Magnetic fields are responsible for much of the variability and structuring in the universe, but only on the Sun can the basic magnetic field related processes be explored in detail. While several excellent textbooks have established a diagnostic foundation for exploring the physics of unmagnetized stellar atmospheres through spectral analysis, no corresponding treatise for magnetized stellar atmospheres has been available. The present monograph fills this gap. The theoretical foundation for the diagnostics of stellar magnetism is developed from first principles in a comprehensive way, both within the frameworks of classical physics and quantum field theory, together with a presentation of the various solar applications. This textbook can serve as an introduction to solar and stellar magnetism for astronomers and physicists at the graduate or advanced undergraduate level and will also become a resource book for more senior scientists with a general interest in cosmic magnetic fields.
Author: Donald A. Guidice
Publisher:
ISBN:
Category : Electromagnetic waves
Languages : en
Pages : 42
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Book Description
The physics of microwave-burst emission is briefly examined to give the rationale for investigating polarization spectra. The instruments used to carry out the 9.4 GHz and 7 GHz circular-polarization measurements and the 5 GHz Stokes-parameter measurements are described. A survey of the August 1972 to December 1973 period produced a table of 45 bursts, from which some limited results were obtained. About 75 to 80 percent of all bursts are circularly polarized, with varying polarization over the 5 to 9.4 GHz range. For most bursts where the circular polarization pc increases toward the upper or lower end of the 5 to 9.4 GHz range, the total intensity I also increases in that direction. The few bursts having a pc sense reversal in the 5 to 9.4 GHz range also have a spectral maximum of I at roughly the same frequency. Some simplified explanations of the results are presented.
Author: Bin Chen
Publisher: Frontiers Media SA
ISBN: 2889711064
Category : Science
Languages : en
Pages : 234
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Book Description
Author: Gábor Horváth
Publisher: Springer Science & Business Media
ISBN: 9783540404576
Category : Medical
Languages : en
Pages : 476
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Book Description
While the human eye can practically cope only with two aspects of light, brightness and colour, many animals use polarization as a further source of visual information. The text starts with an introduction into imaging polarimetry, an efficient technique for measuring light polarization, and moves onto a description of the various polarization patterns occurring in nature, such as celestial polarization. The major part of the book is dedicated to the fascinating question: How do animals use polarization patterns? Following a compendium of the physiology of polarization sensitivity, several case studies are presented, such as honeybees or ants using polarized light as a compass or aquatic animals orientating by the underwater polarization. Further, it is explained how man-made objects affecting the natural optical environment may disorientate animals. For instance, as in the case where oil or glass surfaces can be more attractive for water-seeking polarotactic insects than the water surface.
Author: M. Landi Degl'Innocenti
Publisher: Springer Science & Business Media
ISBN: 1402024150
Category : Science
Languages : en
Pages : 899
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Book Description
The scientific research based on spectropolarimetric techniques is undergoing a phase of rapid growth. Instruments of unprecedented sensitivity are nowadays available, particularly for solar observations. To fully exploit the rich diagnostic content of such observations, it is necessary to understand the physical mechanisms involved in the generation and transfer of polarized radiation in astrophysical (or laboratory) plasmas. After an introductory part based on classical physics, this book tackles the subject by a rigorous quantum-mechanical approach. The transfer equations for polarized radiation and the statistical equilibrium equations for the atomic density matrix are derived directly from the principles of Quantum Electrodynamics. The two sets of equations are then used to present a number of applications, mainly concerning the diagnostics of solar magnetic fields. This book is primarily addressed to scientists working in the field of spectropolarimetry. It may also serve as a textbook for a course at the graduate or advanced undergraduate level.
Author: László Nowinszky
Publisher: Cambridge Scholars Publishing
ISBN: 1527591611
Category : Science
Languages : en
Pages : 209
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Book Description
This book deals with the influence of solar activity and its terrestrial effects in connection with the light trapping of insects. It examines issues such as the interplanetary magnetic field, ionospheric disturbances, tropopause, geomagnetic field, ground-level disturbances, tropospheric ozone content, and twilights phenomena, among others. Bringing together data from a huge amount of moths from Hungary, Australia, and the USA, it demonstrates that the role of the Sun has a multifaceted effect on the flight activity of moths, an unprecedented finding in the literature. The book will appeal to special libraries, research institutes, university departments, entomological societies, and entomologists.
Author: Ludmilla Kolokolova
Publisher: Cambridge University Press
ISBN: 1107043905
Category : Science
Languages : en
Pages : 507
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Book Description
A comprehensive review of state-of-the-art techniques, models and research methods in modern astronomical polarimetry.
