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Author : Herbert J. Wiehl
Publisher : Unknown
Page : 120 pages
File Size : 47,9 Mb
Release : 1983
Category : Solar flares
ISBN : NASA:31769000559438
Author : Anonim
Publisher : Unknown
Page : 64 pages
File Size : 46,5 Mb
Release : 1987
Category : Microwave emmissions
ISBN : UIUC:30112106616177
Author : R. Starr
Publisher : Unknown
Page : 64 pages
File Size : 52,5 Mb
Release : 1987
Category : Microwaves
ISBN : NASA:31769000573553
Author : S. W. Kahler
Publisher : Unknown
Page : 34 pages
File Size : 51,9 Mb
Release : 1981
Category : Correlation (Statistics)
ISBN : UOM:39015095143478
In previous studies correlating E> 10 MeV proton fluxes and spectra with various associated microwave burst parameters, the resulting high correlations were assumed to reflect a common acceleration process for the protons and the microwave-emitting electrons. We suggest and test an alternative explanation for these correlations, which we term the Big Flare Syndrome (BFS), that states that, statistically, energetic flare phenomena are more intense in larger flares, regardless of the detailed physics. Peak 1-8 A X-ray fluxes, characteristic of the thermal flare, are correlated with peak proton fluxes to derive correlation coefficients characteristics of the BFS. Of all microwave parameters tested for the 1973-1979 period, only the time-integrated flux densities at 8800 and 15400 MHz may be significantly larger than expected form the BFS. We fail to confirm previous results associating peak proton spectra with peak microwave spectral characteristics, thus finding no evidence that peak microwave fluxes are indicative of proton acceleration. We extend this conclusion to peak hard X-ray correlations. The strongly nonlinear relationship deduced between flare energy and proton production also appears invalid.
Author : S. Böhme,U. Esser,Prof. Dr. W. Fricke,H. Hefele,Inge Heinrich,W. Hofmann,R. Krahn,V. R. Matas,Dr. Lutz D. Schmadel,G. Zech
Publisher : Springer Science & Business Media
Page : 1157 pages
File Size : 41,5 Mb
Release : 2013-12-11
Category : Science
ISBN : 9783662123522
Astronomy and Astrophysics Abstracts aims to present a comprehensive documen tation of the literature concerning all aspects of astronomy, astrophysics, and their border fields. It is devoted to the recording, summarizing, and indexing of the relevant publications throughout the world. Astronomy and Astrophysics Abstracts is prepared by a special department of the Astronomisches Rechen-Institut under the auspices of the International Astronomical Union. Volume 39 records literature published in 1985 and received before August 15, 1985. Some older documents which we received late and which are not surveyed in earlier volumes are included too. We acknowledge with thanks contributions of our colleagues all over the world. We also express our gratitude to all organiza tions, observatories, and publishers which provide us with complimentary copies of their publications. On account of the introduction of an object index the scope of index information will be considerably enlarged beginning with this volume. In connection with the subject index an additional source to satisfy the needs of retrieval is opened up. Starting with Volume 33, all the recording, correction, and data processing work was done by means of computers. The recording was done by our technical staff members Ms. Helga Ballmann, Ms. Mona El-Choura, Ms. Monika Kohl, Ms. Sylvia Matyssek. Ms. Karin Burkhardt, Ms. Susanne Schlotelburg, and Mr. Stefan Wagner supported our task by careful proofreading. It is a pleasure to thank them all for their encouragement. Heidelberg, September 1985 The Editors Contents Introduction . . . . . . . . . . . .
Author : C. de Jager,Zdenek Svestka
Publisher : Springer Science & Business Media
Page : 617 pages
File Size : 46,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400945883
Author : R. Ramaty,Robert Gilbert Stone
Publisher : Unknown
Page : 666 pages
File Size : 43,5 Mb
Release : 1973
Category : Government publications
ISBN : STANFORD:36105008982519
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.
Author : Anonim
Publisher : Unknown
Page : 240 pages
File Size : 41,7 Mb
Release : 1990
Category : Aeronautics
ISBN : MINN:30000001485071
Author : S. Böhme,Prof. Dr. Walter Fricke,H. Hefele,I. Heinrich,W. Hofmann,D. Krahn,V. R. Matas,Dr. Lutz D. Schmadel,G. Zech
Publisher : Springer Science & Business Media
Page : 825 pages
File Size : 45,5 Mb
Release : 2013-11-11
Category : Science
ISBN : 9783662111840
Astronomy and Astrophysics Abstracts aims to present a comprehensive documen tation of the literature concerning all aspects of astronomy, astrophysics, and their border fields. It is devoted to the recording, summarizing, and indexing of the relevant publications throughout the world. Astronomy and Astrophysics Abstracts is prepared by a special department of the Astronomisches Rechen-Institut under the auspices of the International Astronomical Union. Volume 33 records literature published in 1983 and received before August 1, 1983. Some older documents which we received late and which are not surveyed in earlier volumes are included too. We acknowledge with thanks contributions of our colleagues all over the world. We also express our gratitude to all organizations, observatories, and publishers which provide us with complimentary copies of their publications. Starting with Volume 33, all the recording, correction, and data processing work was done by means of computers. The recording was done by our technical staff members Ms. Helga Ballmann, Ms. Mona El-Choura, Ms. Monika Kohl, and Ms. Sylvia Matyssek. Mr. Martin Schlotelburg and Mr. Ulrich Uberall supported our task by careful proofreading. It is a pleasure to thank them all for their encouragement. Heidelberg, September 1983 The Editors Contents Introduction . . . . . . . . . . . . 1 Concordance Relation: ICSU-AB-AAA 3 Abbreviations 10 Periodicals, Proceedings, Books, Activities 001 Periodicals . . . . . . . . . . . 15 002 Bibliographical Publications, Documentation, Catalogues, Atlases 47 003 Books ...... . 51 004 History of Astronomy 58 005 Biography . . 64 006 Personal Notes 65 007 Obituaries . . .
Author : National Aeronautics and Space Adm Nasa
Publisher : Unknown
Page : 26 pages
File Size : 48,7 Mb
Release : 2018-10-18
Category : Electronic
ISBN : 1728893577
The expected ratio of synchrotron microwave radiation to bremsstrahlung X-rays for thick target, thin target, and multithermal solar flare models is calculated. The calculations take into account the variation of the microwave to X-ray ratio with X-ray spectral index. The theoretical results are compared with observed ratios of a sample of 51 solar flares with well known spectral index. From this it is concluded that the nonthermal thick target model with a loop length of and order of 10 to the 9th power cm and a magnetic field of 500 + or - 200 G provides the best fit to the data. The thin target and multithermal models require unreasonably large density or pressure and/or low magnetic field to match the data. Lu, Edward T. and Petrosian, Vahe Unspecified Center NSF ATM-87-05084; NSG-7092...
Author : Anonim
Publisher : Unknown
Page : 66 pages
File Size : 54,6 Mb
Release : 1983
Category : Science
ISBN : STANFORD:36105024768546
Author : Anonim
Publisher : Unknown
Page : 48 pages
File Size : 53,8 Mb
Release : 1987
Category : Microwave emissions
ISBN : NASA:31769000573546
Author : Anonim
Publisher : Unknown
Page : 548 pages
File Size : 48,5 Mb
Release : 1990
Category : Power resources
ISBN : MINN:30000006336733
Author : Zdenek Svestka
Publisher : Springer Science & Business Media
Page : 414 pages
File Size : 46,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401014595
This book is the first part of the originally planned publication by Z. Svestka and L. D. de Feiter 'Solar High Energy Photon and Particle Emission'. The second part, with the original title, was to be published by de Feiter in about one year from now. However, to the deep sorrow of all of us, Dr de Feiter died suddenly and unexpectedly when the present book was in print. Thus, unfortunately, de Feiter's second part may not appear. Due to the fact that the originally planned publication was divided into two parts, the present book is mainly descriptive and concerned with the flare morphology. It was expected that theoretical interpretations would be extensively developed in the second part, prepared by de Feiter. In particular, this refers to the theoretical back grounds of radio emissions, particle acceleration and particle propagation in space. Only in Chapter II, concerning the 'low-temperature' flare, do we go deeper into the theoretical interpretations, anticipating that de Feiter would have been concerned mainly with the 'high-energy' physics. Still, the book includes discussions on all important aspects of flares and thus can present the reader with a complete picture of the complex flare phenomenon. It is clear that many observed data on flares can be interpreted in different ways.
Author : Mukul Ranjan Kundu,Bruce Woodgate
Publisher : Unknown
Page : 450 pages
File Size : 40,6 Mb
Release : 1987
Category : Solar flares
ISBN : UOM:39015015941050