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The Hard X Rays And Gamma Rays From Solar Flares
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Book Synopsis The Hard X-Rays and Gamma-Rays from Solar Flares by : National Aeronautics and Space Adm Nasa
Download or read book The Hard X-Rays and Gamma-Rays from Solar Flares written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-10-12 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation of energies from 10 KeV to greater than 10 MeV has been observed during solar flares, and is interpreted to be due to bremsstrahlung by relativistic electrons. A complete treatment of this problem requires solution of the kinetic equation for relativistic electrons and inclusion of synchrotron energy losses. Using the electron distributions obtained from numerical solutions of this equation the bremsstrahlung spectra in the impulsive x ray and gamma-ray regimes are calculated, and the variation of these spectral indices and directivities with energy and observation angle are described. The dependences of these characteristics of the radiation of changes in the solar atmospheric model, including the convergence of the magnetic field, the injected electron spectral index, and most importantly, in the anisotropy of the injected electrons and of the convergence of the magnetic field are also described. The model results are compared with stereoscopic observations of individual flares and the constraints that this data sets on the models are discussed. Mctiernan, James M. and Petrosian, Vahe Unspecified Center NSF ATM-83-20439; NSG-7092...
Book Synopsis Hard X-Ray Imaging of Solar Flares by : Michele Piana
Download or read book Hard X-Ray Imaging of Solar Flares written by Michele Piana and published by Springer Nature. This book was released on 2022-01-01 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea for this text emerged over several years as the authors participated in research projects related to analysis of data from NASA's RHESSI Small Explorer mission. The data produced over the operational lifetime of this mission inspired many investigations related to a specific science question: the when, where, and how of electron acceleration during solar flares in the stressed magnetic environment of the active Sun. A vital key to unlocking this science problem is the ability to produce high-quality images of hard X-rays produced by bremsstrahlung radiation from electrons accelerated during a solar flare. The only practical way to do this within the technological and budgetary limitations of the RHESSI era was to opt for indirect modalities in which imaging information is encoded as a set of two-dimensional spatial Fourier components. Radio astronomers had employed Fourier imaging for many years. However, differently than for radio astronomy, X-ray images produced by RHESSI had to be constructed from a very limited number of sparsely distributed and very noisy Fourier components. Further, Fourier imaging is hardly intuitive, and extensive validation of the methods was necessary to ensure that they produced images with sufficient accuracy and fidelity for scientific applications. This book summarizes the results of this development of imaging techniques specifically designed for this form of data. It covers a set of published works that span over two decades, during which various imaging methods were introduced, validated, and applied to observations. Also considering that a new Fourier-based telescope, STIX, is now entering its nominal phase on-board the ESA Solar Orbiter, it became more and more apparent to the authors that it would be a good idea to put together a compendium of these imaging methods and their applications. Hence the book you are now reading.
Book Synopsis The Impulsive Hard X-rays from Solar Flares by : John Leach
Download or read book The Impulsive Hard X-rays from Solar Flares written by John Leach and published by . This book was released on 1984 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Great Microwave Bursts and Hard X Rays from Solar Flares by : Herbert J. Wiehl
Download or read book Great Microwave Bursts and Hard X Rays from Solar Flares written by Herbert J. Wiehl and published by . This book was released on 1983 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sun, Earth and Sky by : Kenneth R. Lang
Download or read book Sun, Earth and Sky written by Kenneth R. Lang and published by Springer. This book was released on 2012-12-06 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: FROM THE REVIEWS "An excellent guide to present-day studies of the Sun and our stars impact on Earths space environmentcolorful (and useful) images and a thoughtful organization.A great read, written with enthusiasm and knowledge. " "An excellent guidea serious yet broadly accessible account of what science has learned about the Sun to date. With quotes from songs and poems, pictures ranging from impressionistic paintings to state-of-the-art photographs to computer graphics, this book is a delight."
Book Synopsis Solar Gamma-, X-, and EUV Radiation by : S.R. Kane
Download or read book Solar Gamma-, X-, and EUV Radiation written by S.R. Kane and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of IAU Symposium No. 68 held in Buenos Aires, Argentina, 11-14 June 1974, organized by the IAU in co-operation with COSPAR
Book Synopsis Numerical Simulations of X-rays and Gamma-rays from Solar Flares by : James Michael McTiernan
Download or read book Numerical Simulations of X-rays and Gamma-rays from Solar Flares written by James Michael McTiernan and published by . This book was released on 1989 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Early Detection of a Solar Flare by : Richard Frank Donnelly
Download or read book Early Detection of a Solar Flare written by Richard Frank Donnelly and published by . This book was released on 1968 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Evolution of the Source Volumes of Gradual and Impulsive Solar Flare Emissions by :
Download or read book Dynamic Evolution of the Source Volumes of Gradual and Impulsive Solar Flare Emissions written by and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Solar Flare Physics by : National Aeronautics and Space Adm Nasa
Download or read book Solar Flare Physics written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-09-21 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781725622326 Total Pages :26 pages Book Rating :4.6/5 (223 download)
Book Synopsis Correlative Analysis of Hard and Soft X-Ray Emissions in Solar Flares by : National Aeronautics and Space Administration (NASA)
Download or read book Correlative Analysis of Hard and Soft X-Ray Emissions in Solar Flares written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes research performed under the Phase 3 Compton Gamma-Ray Observatory (CGRO) Guest Investigator Program. The objective of this work is to study different mechanisms of solar flare heating by comparing their predictions with simultaneous hard and soft X-ray observations. The datasets used in this work consist of hard X-ray observations from the CGRO Burst and Transient Source Experiment (BATSE) and soft X-ray observations from the Bragg Crystal Spectrometer (BCS) and Soft X-ray telescope (SXT) on the Japanese Yohkoh spacecraft. Zarro, Dominic M. Goddard Space Flight Center NASA-CR-204530, NAS 1.26:204530, R97-257 NASA Order S-57783-F...
Book Synopsis X-rays, Gamma-rays by : United States. National Aeronautics and Space Administration
Download or read book X-rays, Gamma-rays written by United States. National Aeronautics and Space Administration and published by . This book was released on 1977 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Energy Phenomena on the Sun by : R. Ramaty
Download or read book High Energy Phenomena on the Sun written by R. Ramaty and published by . This book was released on 1973 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of a symposium of high energy phenomena on the sun are presented. The subjects discussed include the following: (1) flare theories and optical observations, (2) microwave and hard X-ray observations, (3) ultraviolet and soft X-ray emissions, (4) nuclear reactions in solar flares, (5) energetic particles from the sun, (6) magnetic fields and particle storage, and (7) radio emissions in the corona and interplanetary space.
Book Synopsis Solar Energetic Particles by : Donald V. Reames
Download or read book Solar Energetic Particles written by Donald V. Reames and published by Springer. This book was released on 2017-03-10 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This concise primer introduces the non-specialist reader to the physics of solar energetic particles (SEP) and systematically reviews the evidence for the two main mechanisms which lead to the so-called impulsive and gradual SEP events. More specifically, the timing of the onsets, the longitude distributions, the high-energy spectral shapes, the correlations with other solar phenomena (e.g. coronal mass ejections), as well as the all-important elemental and isotopic abundances of SEPs are investigated. Impulsive SEP events are related to magnetic reconnection in solar flares and jets. The concept of shock acceleration by scattering on self-amplified Alfvén waves is introduced, as is the evidence of reacceleration of impulsive-SEP material in the seed population accessed by the shocks in gradual events. The text then develops processes of transport of ions out to an observer. Finally, a new technique to determine the source plasma temperature in both impulsive and gradual events is demonstrated. Last but not least the role of SEP events as a radiation hazard in space is mentioned and a short discussion of the nature of the main particle telescope designs that have contributed to most of the SEP measurements is given.
Book Synopsis Energetic Phenomena on the Sun by : Mukul Ranjan Kundu
Download or read book Energetic Phenomena on the Sun written by Mukul Ranjan Kundu and published by . This book was released on 1987 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis X-ray and Gamma-ray Observations of Solar Flares by : Paul Thomas Feffer
Download or read book X-ray and Gamma-ray Observations of Solar Flares written by Paul Thomas Feffer and published by . This book was released on 1996 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Many Faces of the Sun by : Keith T. Strong
Download or read book The Many Faces of the Sun written by Keith T. Strong and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: A decade of observations of the Sun with NASAs Solar Maximum Mission satellite has led to important discoveries in solar and atomic physics. This book presents the first comprehensive review of these results in a single volume, providing a snapshot of the current state of knowledge of solar physics. Chapters provide insight into the structure, composition and activity of the Sun, with coverage of topics such as solar flares, variations in the solar irradiance, coronal mass ejections, and spectroscopy.
