Title
Some Aspects Of Ion-Acoustic Whistlers In The Ionosphere In The Presence Of Negative Ions
Keywords
critical frequency; group travel time; Ion-acoustic whistlers
Abstract
A study is made of the propagation of ion-acoustic whistlers in the atmosphere including the effects of negative ions. The dispersion relation, phase and group velocities of whistlers are discussed. It is shown that the presence of negative ions introduces a critical frequency which, for equal ionic masses, is equal to the ion-cyclotron frequency. Special attention is given to the group travel time of whistlers at mid-latitude and equator so that the role of negative ions on the group travel time can be determined. The cyclotron damping of whistlers in the presence of negative ions has been studied. The velocity distribution, total attenuation and the induced magnetic field are calculated from the temporal as well as spatial cyclotron damping. It is suggested that the attenuation of whistlers may cause heating of the ionosphere. It is also indicated that the measurement of the group travel time from its source to the observer at the satellite would help to diagnose the ionospheric parameters. The results of the analysis are presented by several graphical presentations. © 1989, Hindawi Publishing Corporation. All rights reserved.
Publication Date
1-1-1989
Publication Title
International Journal of Mathematics and Mathematical Sciences
Volume
12
Issue
4
Number of Pages
749-772
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1155/S0161171289000931
Copyright Status
Unknown
Socpus ID
85016401761 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/85016401761
STARS Citation
Sur, A. K.; Das, G. C.; and Chakraborty, B., "Some Aspects Of Ion-Acoustic Whistlers In The Ionosphere In The Presence Of Negative Ions" (1989). Scopus Export 1980s. 317.
https://stars.library.ucf.edu/scopus1980/317