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Detailed Reference Information |
Pryor, W.R., Barth, C.A., Hord, C.W., Stewart, A.I.F., Simmons, K.E., Gebben, J.J., McClintock, W.E., Lineaweaver, S., Ajello, J.M., Tobiska, W.K., Naviaux, K.L., Edberg, S.J., White, O.R. and Sandel, B.R. (1996). Latitude variations in interplanetary Lyman-a data from the Galileo EUVS modeled with solar He 1083 nm images. Geophysical Research Letters 23: doi: 10.1029/96GL01978. issn: 0094-8276. |
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Observations of interplanetary Lyman-&agr; obtained by the Galileo Extreme Ultraviolet Spectrometer (EUVS) experiment near solar maximum in 1990 show a distinct migration in the upwind brightness maximum from 36¿5 ¿N to 6¿5 ¿N ecliptic latitude over a period of several months. Our earlier models based on solar Lyman-&agr; flux proxies appropriate for use in the ecliptic plane (Pryor et al., 1992; Ajello et al., 1994) capture the solar rotation effects present in the data, but do not reproduce this latitude migration. We introduce a new type of model that uses He 1083 nm images to produce a proxy for Lyman-&agr; as a function of both solar longitude and latitude. This model reproduces the observed latitude migration of the Lyman-&agr; brightness maximum. ¿ American Geophysical Union 1996 |
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Abstract |
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Keywords
Interplanetary Physics, Interstellar gas, Solar Physics, Astrophysics, and Astronomy, Ultraviolet emissions |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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