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Correction to "Lorentzian ion exosphere model"

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JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 103, NO. A3, PAGE 4117, MARCH 1, 1998

Correction to "Lorentzian ion exosphere model"

V. Pierrard and J. Lemaire

In the paper "Lorentzian ion exosphere model" by V. Pierrard and J. Lemaire (Journal of Geophysical Research, 101(A4), 7923-7934, 1996) the real expres- sion of (28) or (39) is

(

rim noA• I'i; 1/2 W s I q- --

8

ß •'-2 1+•

n-1

(1) Identically, the real expression of (44) or (49) is

E(r) - rlmnoA•nl/•wS

8

n -

n n-1

•-

n-2

-

w2n(n- 1)

)

(2)

A problem can also occur when R + nw 2 < 0 in expressions (40) to (44). In this case, correct expres- sions are obtained by replacing in these expressions 1 + R/•w •, d, b • and f• by their norm and by replac-

ing (1- t) by (1- t). sign(•l + R/•w •) in (23) and

(24) i.e. the definitions of •(x) and •4(x) ß

We thank Nicole Meyer-Vernet for pointing out this error in the expressions of our model.

V. Pierrard and J. Lemaire, Institut d'A•ronomie Spatiale de Belgique, B-1180, Brussels, Belgium.

(Received September 1, 1997.)

Copyright 1998 by the American Geophysical Union.

Paper number 97JA02665.

0148-0227/98/97JA-02665 $09.00

4117

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