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Nose whistler dispersion as a measure of magnetosphere electron temperature

1965; The National Institute of Standards and Technology; Volume: 69D; Issue: 11 Linguagem: Inglês

10.6028/jres.069d.152

2376-5771

H. Guthart,

Earthquake Detection and Analysis

Th e frac tional d eviation of nose whi s tle r group delay from th e ze ro-tempe rature model has bee n calc ulat ed ass umin g a Maxwellian magne tos phere and a gyrofre qu e ncy electron de nsit y di s tributio n; i. e., th e electro n d e ns it y vari es as th e inverse c ube with di s tan ce from th e e arth 's ce nte r.Th e the rm a l c orrec ti on to th e ze ro-te mpe rature gro up refract ive ind ex has bee n in se r\ed int o the nose-whi stle r g roup d e lay int egra l to de te rmin e th e modifi ed group de lay.S ignifi ca nt dev ia tion s from th e ze rote mpera ture group de lay for frequ e nc ies a bov e th e nflse fre qu e ncy have bee n ca lcul a ted .S in ce dev ia tion s from th ,.. ze ro -te mpe rature di s pe rs ion o f a few pe rce nt a re rea di ly di s c e rnibl e_ noSe whi s tl er data s lwuld pro vide a t lea s t an es tim a te of th e uppe r bound on mag ne tos piJ e rl' te mpe ra ture.T we nt ythree whi s tl e rs have bee n a nal yzed a nd all uppe r bound on magne tos plwrc te mpe rat li n' of 2(1 0. 1 ) OK has bet'n de te rmined.' >