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Author : Rajesh Kumar Mishra
Publisher :
ISBN 13 : 9783346983206
Total Pages : 0 pages
Book Rating : 4.9/5 (832 download)
Download or read book Cosmic Ray Modulation and Interplanetary Turbulences written by Rajesh Kumar Mishra and published by . This book was released on 2023-12-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rajesh Kumar Mishra
Publisher : GRIN Verlag
ISBN 13 : 3346983196
Total Pages : 39 pages
Book Rating : 4.3/5 (469 download)
Download or read book Cosmic ray modulation and interplanetary turbulences written by Rajesh Kumar Mishra and published by GRIN Verlag. This book was released on 2023-12-12 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Document from the year 2023 in the subject Physics - Other, , language: English, abstract: A lot of efforts have been made to find out the possible origin of the ‘high amplitude anisotropic wave trains’ of enhanced diurnal variation of cosmic rays and to develop a suitable realistic theoretical model, which can explain the different harmonics in individual days. The main objective of this work is to study the first three harmonics of high amplitude wave trains of cosmic ray intensity over the period 1981-1994 for Deep River neutron monitoring station and their association with different solar and interplanetary transients. The amplitude of all the three harmonics (diurnal/semi-diurnal/tri-diurnal) of HAE events significantly remains quite high and statistically constant as compared to the annual average amplitude for majority of the events, whereas the time of maximum significantly shifts towards earlier hours for first harmonic and towards later hours for second and third harmonic as compared to the co-rotational direction for majority of the events. The occurrence of HAE events is dominant, when the value of interplanetary magnetic field (B) remains in the range (4 -10 nT); the product Ap x Dst remains negative only the ion density remains 20. It is noteworthy that the occurrence of high amplitude day is dominant during solar activity minimum years (1986-87) and solar activity maximum years (1991-92). The amplitude as well as time of maximum of the cosmic ray diurnal anisotropy is positively correlated to the sunspot numbers during HAEs.
Author : Jiasheng Chen
Publisher :
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.:/5 (213 download)
Download or read book Long-term Modulation of Cosmic Rays in Interplanetary Magnetic Turbulence written by Jiasheng Chen and published by . This book was released on 1989 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P.C. Frisch
Publisher : Springer Science & Business Media
ISBN 13 : 1402045573
Total Pages : 430 pages
Book Rating : 4.4/5 (2 download)
Download or read book Solar Journey: The Significance of Our Galactic Environment for the Heliosphere and Earth written by P.C. Frisch and published by Springer Science & Business Media. This book was released on 2006-09-12 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by experts who created the field, this volume explores uncharted scientific territory, with articles discussing the effect of our galactic environment on the heliosphere, planetary system and Earth. Leading experts in diverse fields discuss the physical changes expected as the heliosphere adjusts to its galactic environment. Topics include the interaction between solar wind and interstellar dust and gas, cosmic ray modulation, magnetospheres, variations in the solar environment, and the cosmic ray isotope record preserved in paleoclimate data.
Author : Thomas Joseph Birmingham
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (31 download)
Download or read book Cosmic Ray Diffusion written by Thomas Joseph Birmingham and published by . This book was released on 1975 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics discussed and summarized are: cosmic ray measurements as related to diffusion theory; quasi-linear theory, nonlinear theory, and computer simulation of cosmic ray pitch-angle diffusion; and magnetic field fluctuation measurements as related to diffusion theory.
Author : I.N. Toptygin
Publisher : Springer Science & Business Media
ISBN 13 : 9400952570
Total Pages : 388 pages
Book Rating : 4.4/5 (9 download)
Download or read book Comic Rays in Interplanetary Magnetics Fields written by I.N. Toptygin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fast particles of natural or1g1n (cosmic rays) have been used for a long time as an important source of astrophysical and geophysical information. A study of cosmic ray spectra, time variations, abundances, gradients, and anisotropy provides a wealth of data on physical conditions in the regions of cosmic ray generation as well as in the media through which cosmic rays propagate. Astrophysical aspects of cosmic ray physics have been considered in a number of monograpqs. The most detailed seems to be "The Origin of Cosmic Rays" by V. L. Ginzburg and S. 1. Syrovatskij (1964) which is, however, concerned mainly with galactic cosmic rays. The physics of the circumsolar space is discussed in this book only rather briefly. Several other monographs have been devoted mostly to the physics of the interplanetary medium and cosmic rays in interplanetary space. These include the books by Dorman (1963, 1975a, b), Parker (1963), Dorman and Miroshnichenko (1968). The present monograph differs from the above mentioned books in two main aspects: (i) It presents a unified theoretical approach to analys{ng the properties of fast particles in interplanetary space, based upon consideration of cosmic rays as a highly energetic component of the interplane~ary plasma, which makes use of the plasma physics methods to describe the behaviour of cosmic rays.
Author : L.A. Fisk
Publisher : Springer Science & Business Media
ISBN 13 : 9401711895
Total Pages : 376 pages
Book Rating : 4.4/5 (17 download)
Download or read book Cosmic Rays in the Heliosphere written by L.A. Fisk and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: In every scientific discipline there are milestones - periods of significant accom plishment when it is appropriate to pause and summarize the state of the field. Such is the case for the study of the behavior of cosmic rays in the heliosphere. We are just passing through solar minimum conditions, when the heliosphere has a well-ordered and relatively simple configuration. We have been fortunate to have an array of spacecraft - unprecedented in the history of space exploration and unlikely to be repeated for generations - to provide comprehensive measurements of cosmic rays throughout the heliosphere. Ulysses has completed its historic first exploration of the heliosphere at high heliographic latitudes. Pioneer and Voyager have been exploring the outer heliosphere. The durable IMP-8 and now the WIND spacecraft have provided detailed baseline measurements at Earth. Concurrently, there has been a steady improvement in theoretical understanding of cosmic ray behavior through the use of ever more sophisticated numerical models. This milestone in cosmic ray studies was celebrated with a Workshop on Cos mic Rays in the Heliosphere which was convened by L. A. Fisk, J. R. Jokipii.
Author : I.N. Toptygin
Publisher : Springer
ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.:/5 (41 download)
Download or read book Cosmic Rays in Interplanetary Magnetic Fields written by I.N. Toptygin and published by Springer. This book was released on 1985-12-31 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fast particles of natural or1g1n (cosmic rays) have been used for a long time as an important source of astrophysical and geophysical information. A study of cosmic ray spectra, time variations, abundances, gradients, and anisotropy provides a wealth of data on physical conditions in the regions of cosmic ray generation as well as in the media through which cosmic rays propagate. Astrophysical aspects of cosmic ray physics have been considered in a number of monograpqs. The most detailed seems to be "The Origin of Cosmic Rays" by V. L. Ginzburg and S. 1. Syrovatskij (1964) which is, however, concerned mainly with galactic cosmic rays. The physics of the circumsolar space is discussed in this book only rather briefly. Several other monographs have been devoted mostly to the physics of the interplanetary medium and cosmic rays in interplanetary space. These include the books by Dorman (1963, 1975a, b), Parker (1963), Dorman and Miroshnichenko (1968). The present monograph differs from the above mentioned books in two main aspects: (i) It presents a unified theoretical approach to analys{ng the properties of fast particles in interplanetary space, based upon consideration of cosmic rays as a highly energetic component of the interplane~ary plasma, which makes use of the plasma physics methods to describe the behaviour of cosmic rays.
Author : Lev Dorman
Publisher : Springer Science & Business Media
ISBN 13 : 1402051018
Total Pages : 877 pages
Book Rating : 4.4/5 (2 download)
Download or read book Cosmic Ray Interactions, Propagation, and Acceleration in Space Plasmas written by Lev Dorman and published by Springer Science & Business Media. This book was released on 2006-09-02 with total page 877 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 1 briefly describes the main properties of space plasmas and primary CR. Chapter 2 considers the problem of CR propagation in space plasmas described by the kinetic equation and different types of diffusion approximations. Chapter 3 is devoted to CR non-linear effects in space plasmas caused by CR pressure and CR kinetic stream instabilities with the generation of Alfvèn turbulence. In Chapter 4 different processes of CR acceleration in space plasmas are considered. The book ends with a list providing more than 1,300 full references, a discussion on future developments and unsolved problems, as well as Object and Author indexes.
Author : Marius S. Potgieter
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (255 download)
Download or read book Heliospheric Cosmic Ray Transport, Modulation and Turbulence written by Marius S. Potgieter and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marius S. Potgieter
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.3/5 (91 download)
Download or read book Heliospheric Cosmic Ray Transport, Modulation and Turbulence written by Marius S. Potgieter and published by . This book was released on 2005 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lennard Ayres Fisk (Jr.)
Publisher :
ISBN 13 :
Total Pages : 428 pages
Book Rating : 4.:/5 (318 download)
Download or read book The Behavior of Cosmic Rays in the Interplanetary Medium written by Lennard Ayres Fisk (Jr.) and published by . This book was released on 1969 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert Karl Schaefer
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (739 download)
Download or read book The Modulation of Relativistic Cosmic Rays by the Interplanetary Magnetic Field written by Robert Karl Schaefer and published by . This book was released on 1981 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bernd Heber
Publisher : Springer
ISBN 13 : 9781461492016
Total Pages : 403 pages
Book Rating : 4.4/5 (92 download)
Download or read book Cosmic Rays in the Heliosphere written by Bernd Heber and published by Springer. This book was released on 2013-08-26 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a comprehensive synopsis of the current state of cosmic rays, their modulation and their effects in the Earth’s atmosphere. Leading scientists in the field assess the current state of our understanding of the spatial and temporal variations of galactic and anomalous cosmic rays in the Heliosphere, and their relation to effects of the Sun. The main objective is to understand the spatial and temporal variation of galactic and anomalous cosmic rays in the light of recent observations, theory and modeling by identifying the key mechanism(s) of cosmic ray modulation and how changes on the Sun relate to changes in the observed characteristics of cosmic rays in the Heliosphere; examining the current long-lasting solar minimum and understand its implications for solar-cycle variations and long-term variations; and interpreting the long-term variations of cosmogenic radionuclides in terms of solar variability and climate change on Earth. This volume is aimed at graduate students active in the fields of solar physics, space science, and cosmic ray physics. Originally published in Space Science Reviews journal, Vol. 176/1-4, 2013.
Author : Reinhard Schlickeiser
Publisher : Springer Science & Business Media
ISBN 13 : 3662048140
Total Pages : 521 pages
Book Rating : 4.6/5 (62 download)
Download or read book Cosmic Ray Astrophysics written by Reinhard Schlickeiser and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the first part, the book gives an up-to-date summary of the observational data. In the second part, it deals with the kinetic description of cosmic ray plasma. The underlying diffusion-convection transport equation, which governs the coupling between cosmic rays and the background plasma, is derived and analyzed in detail. In the third part, several applications of the solutions of the transport equation are presented and how key observations in cosmic ray physics can be accounted for is demonstrated.
Author : J. G. Luhmann
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (227 download)
Download or read book A Quasi-Linear Kinetic Equation for Cosmic Rays in the Interplanetary Medium written by J. G. Luhmann and published by . This book was released on 1976 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: A kinetic equation for interplanetary cosmic rays is set up with the aid of weak plasma turbulence theory for an idealized radially symmetric model of the interplanetary magnetic field. As a starting point, this treatment invokes the Vlasov equation instead of the traditional Fokker-Planck equation. Quasilinear theory is applied to obtain a momentum diffusion equation, for the heliocentric frame of reference, which describes the interaction of cosmic rays with convecting magnetic irregularities in the solar wind plasma. Under restricted conditions, the well known equation of solar modulation can be obtained from the kinetic equation.
Author :
Publisher :
ISBN 13 :
Total Pages : 256 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
