Theoretical Studies of the Physics of the Solar Atmosphere PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Theoretical Studies of the Physics of the Solar Atmosphere PDF full book. Access full book title Theoretical Studies of the Physics of the Solar Atmosphere by National Aeronautics and Space Adm Nasa. Download full books in PDF and EPUB format.
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781792946011
Category :
Languages : en
Pages : 30
Get Book Here
Book Description
Significant advances in our theoretical basis for understanding several physical processes related to dynamical phenomena on the sun were achieved. We have advanced a new model for spicules and fibrils. We have provided a simple physical view of resonance absorption of MHD surface waves; this allowed an approximate mathematical procedure for obtaining a wealth of new analytical results which we applied to coronal heating and p-mode absorption at magnetic regions. We provided the first comprehensive models for the heating and acceleration of the transition region, corona, and solar wind. We provided a new view of viscosity under coronal conditions. We provided new insights into Alfven wave propagation in the solar atmosphere. And recently we have begun work in a new direction: parametric instabilities of Alfven waves. Hollweg, Joseph V. NASA-CR-191357, NAS 1.26:191357 NSG-7411...
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781792946011
Category :
Languages : en
Pages : 30
Get Book Here
Book Description
Significant advances in our theoretical basis for understanding several physical processes related to dynamical phenomena on the sun were achieved. We have advanced a new model for spicules and fibrils. We have provided a simple physical view of resonance absorption of MHD surface waves; this allowed an approximate mathematical procedure for obtaining a wealth of new analytical results which we applied to coronal heating and p-mode absorption at magnetic regions. We provided the first comprehensive models for the heating and acceleration of the transition region, corona, and solar wind. We provided a new view of viscosity under coronal conditions. We provided new insights into Alfven wave propagation in the solar atmosphere. And recently we have begun work in a new direction: parametric instabilities of Alfven waves. Hollweg, Joseph V. NASA-CR-191357, NAS 1.26:191357 NSG-7411...
Author: Arthur N. Cox
Publisher: University of Arizona Press
ISBN: 0816538611
Category : Science
Languages : en
Pages : 1435
Get Book Here
Book Description
Observational data derived from the world’s largest solar telescopes are correlated with theoretical discussions in nuclear and atomic physics by contributors representing a wide range of interests in solar research.
Author: A. J. Meadows
Publisher: Elsevier
ISBN: 1483156583
Category : Science
Languages : en
Pages : 325
Get Book Here
Book Description
Early Solar Physics reviews developments in solar physics, particularly the advent of solar spectroscopy and the discovery of relationships between the various layers of the solar atmosphere and between the different forms of solar activity. Topics covered include solar observations during 1843; chemical analysis of the solar atmosphere; the spectrum of a solar prominence; and the solar eclipse of December 12, 1871. Spectroscopic observations of the sun are also presented. This book is comprised of 30 chapters and begins with an overview of ideas about the sun in the mid-nineteenth century, followed by a summary of progress in astronomy between 1850 and 1900, including observations of the solar surface, sunspots, and solar flares. The founding of the Mount Wilson Solar Observatory is cited. Observations of the sun made with solar spectroscopy are presented, including those of the sun's temperature. The results of a detailed examination of spectra photographed during the solar eclipse of January 22, 1898 are also discussed. The final chapter examines the magnetic properties of the earth and sun. This monograph will be a useful resource for astronomers, astrophysicists, and those interested in discovering many aspects of the sun.
Author: P.A. Sturrock
Publisher: Springer Science & Business Media
ISBN: 9401096368
Category : Science
Languages : en
Pages : 394
Get Book Here
Book Description
This volume, together with its two companion volumes, originated in a study commis sioned by the United States National Academy of Sciences on behalf of the National Aeronautics and Space Administration. A committee composed of Tom Holzer, Dimitri Mihalas, Roger Ulrich and myself was asked to prepare a comprehensive review of current knowledge concerning the physics of the sun. We were fortunate in being able to persuade many distinguished scientists to gather their forces for the preparation of 21 separate chapters covering not only. solar physics but also relevant areas of astrophysics and solar-terrestrial relations. In proved necessary to divide the chapters into three separate volumes that cover three different aspects of solar physics. Volumes I and III are concerned with "The Solar Interior" and with "Astrophysics and Solar-Terrestrial Relations." This volume, devoted to "The Solar Atmosphere," covers not only the chromosphere and corona but also the principal phenomena usually referred to as "solar activity." The emphasis is on identifying and analyzing the relevant physical processes, but each chapter also contains a great deal of descriptive material.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 96
Get Book Here
Book Description
This contract provided the opportunity to conduct research on several topics in the general areas of upper atmospheric physics, middle atmospheric physics, and solar physics. It also provided the opportunity to support future experimental programs within NRL's Space Physics Division such as RAIDS, SSULI, SUSIM, MAHRSI, and POAM. Support was in the form of laboratory work, data simulations, and development of algorithms for retrieving geophysical information from the listed instruments. On the SSULI task, e.g., extensive calculations of the dayglow from 834 A to 1800 A were made to estimate signal strengths and investigate the sensitivity of O+ 834 A to O+ in the F-region. Under the SUSIM task, an entirely new retrieval algorithm was developed which performs an inversion of the occultation data to determine number density profiles in a model independent manner. In addition, a great deal of work went into the development of an accurate forward model code which has been used extensively in the pre-flight phase to generate realistic simulations of the SUSIM occultation data sets. Under the task involving remote sensing at millimeter wavelengths, the META code has developed to the point where it provides accurate simulations of the ground based millimeter wave emission measurements being performed by NRL.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309313953
Category : Science
Languages : en
Pages : 37
Get Book Here
Book Description
In 2010, NASA and the National Science Foundation asked the National Research Council to assemble a committee of experts to develop an integrated national strategy that would guide agency investments in solar and space physics for the years 2013-2022. That strategy, the result of nearly 2 years of effort by the survey committee, which worked with more than 100 scientists and engineers on eight supporting study panels, is presented in the 2013 publication, Solar and Space Physics: A Science for a Technological Society. This booklet, designed to be accessible to a broader audience of policymakers and the interested public, summarizes the content of that report.
Author: National Research Council (U.S.). Commission on Physical Sciences, Mathematics, and Resources. Committee on Solar Physics
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 76
Get Book Here
Book Description
Exciting new observational and theoretical advances lead today's solar physicists to challenge many of the predictions of even recent models. This volume summarizes the major questions at the forefront of solar physics theory and observations, and proposes priority recommendations to explore these questions. The study also addresses serious institutional issues that have beset solar physics including the role of the universities in the national solar observations, structural barriers to careers in solar physics, and the leadership role of the federal funding agencies for ground-based solar research.
Author: Hannu Koskinen
Publisher: Springer Science & Business Media
ISBN: 3642003192
Category : Science
Languages : en
Pages : 431
Get Book Here
Book Description
This unique , authoritative book introduces and accurately depicts the current state-of-the art in the field of space storms. Professor Koskinen, renowned expert in the field, takes the basic understanding of the system, together with the pyhsics of space plasmas, and produces a treatment of space storms. He combines a solid base describing space physics phenomena with a rigourous theoretical basis. The topics range from the storms in the solar atmosphere through the solar wind, magnetosphere and ionosphere to the production of the storm-related geoelectric field on the ground. The most up-to-date information available ist presented in a clear, analytical and quantitative way. The book is divided into three parts. Part 1 is a phenomenological introduction to space weather from the Sun to the Earth. Part 2 comprehensively presents the fundamental concepts of space plasma physics. It consists of discussions of fundamental concepts of plasma physics, starting from underlying electrodynamics and statistical physics of charged particles and continuing to single particle motion in homogeneous electromagnetic fields, waves in cold plasma approximation, Vlasov theory, magnetohydrodynamics, instabilities in space plasmas, reconnection and dynamo. Part 3 bridges the gap between the fundamental plasma physics and research level physics of space storms. This part discusses radiation and scattering processes, transport and diffiusion, shocks and shock acceleration, storms on the Sun, in the magnetosphere, the coupling to the atmosphere and ground. The book is concluded wtih a brief review of what is known of space stroms on other planets. One tool for building this briege ist extensive cross-referencing between the various chapters. Exercise problems of varying difficulty are embedded within the main body of the text.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309089727
Category : Science
Languages : en
Pages : 262
Get Book Here
Book Description
This volume, The Sun to the Earth-and Beyond: Panel Reports, is a compilation of the reports from five National Research Council (NRC) panels convened as part of a survey in solar and space physics for the period 2003-2013. The NRC's Space Studies Board and its Committee on Solar and Space Physics organized the study. Overall direction for the survey was provided by the Solar and Space Physics Survey Committee, whose report, The Sun to the Earth-and Beyond: A Decadal Research Strategy in Solar and Space Physics, was delivered to the study sponsors in prepublication format in August 2002. The final version of that report was published in June 2003. The panel reports provide both a detailed rationale for the survey committee's recommendations and an expansive view of the numerous opportunities that exist for a robust program of exploration in solar and space physics.
Author:
Publisher: Academic Press
ISBN: 0080963137
Category : Science
Languages : en
Pages : 497
Get Book Here
Book Description
Our subject is, of course, nothing more than applied physics and chemistry. But in addition to those basic sciences the student of planetary atmospheres needs an overview of atmospheric structure and physical processes as presently understood. This book is intended to help fill that need for both graduate students and research scientists. Although the approach is mainly theoretical, very little basic physics is developed here. Material that is standard fare in third- and fourth-year physics courses is simply absorbed where needed.
