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39. The anisotropy of primary cosmic radiation and the electromagnetic state in interplanetary space

Published online by Cambridge University Press:  18 July 2016

V. Sarabhai ,
N. W. Nerurkar ,
S. P. Duggal  and
T. S. G. Sastry
V. Sarabhai
Affiliation:
Physical Research Laboratory, Ahmedabad, India
N. W. Nerurkar
Affiliation:
Physical Research Laboratory, Ahmedabad, India
S. P. Duggal
Affiliation:
Physical Research Laboratory, Ahmedabad, India
T. S. G. Sastry
Affiliation:
Physical Research Laboratory, Ahmedabad, India

Abstract

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Study of the anisotropy of cosmic rays from the measurement of the daily variation of meson intensity has demonstrated that there are significant day-today changes in the anisotropy of the radiation. New experimental data pertaining to these changes and their solar and terrestrial relationships are discussed.

An interpretation of these changes of anisotropy in terms of the modulation of cosmic rays by streams of matter emitted by the sun is given. In particular, an explanation for the existence of the recently discovered types of daily variations exhibiting day and night maxima respectively, can be found by an extension of some ideas of Alfvén, Nagashima, and Davies. An integrated attempt is made to interpret the known features of the variation of cosmic ray intensity in conformity with ideas developed above.

Type
Part V: Electromagnetic State in Interplanetary Space
Information
Symposium - International Astronomical Union , Volume 6: Electromagnetic Phenomena in Cosmical Physics , 1958 , pp. 377 - 385
Copyright
Copyright © Cambridge University Press 1958 

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