Electron Density from white light coronal observations

Using WSM white light observations from SOHO/LASCO and Mauna Loa Mark 3, we determine the electron density distributions .

We use data from August 17 (DOY 230) , August 18 (DOY 231) , August 19 (DOY 232) , August 20 (DOY 233) . and August 24 (DOY 237) .

West limb streamer density radial profiles

August 17 (DOY 230) - densities averaged over 10 degrees latitude

August 18 (DOY 231) - densities averaged over 10 degrees latitude

August 19 (DOY 232) - densities averaged over 10 degrees latitude

August 20 (DOY 233) - densities avewraged over 10 degrees latitude

August 17-20 (DOY 230-233) - densities averaged over four days (approx. 56 degrees longitude) and 10 degrees latitude

Temperatures (and densities again) calculated assuming radial hydrostatic equilibrium and the ideal gas law for August 17-20, 1996, West limb colatitude 265-275.

Original pB data and fit for August 17-20, 1996, West limb colatitude 265-275.

Shortcut to the coefficients for radial profile of equatorial streamer average density averaged over August 17-20, 1996, West limb colatitude 265-275.

North coronal hole density radial profiles

August 24 (DOY 237) - densities averaged over 10 degrees latitude

Temperatures (and densities again) calculated assuming radial hydrostatic equilibrium and the ideal gas law for August 24, 1996, North pole colatitudes 350 - 360.

Original pB data and fit August 24, 1996, North pole colatitudes 350 - 359.

Shortcut to the coefficients for radial profile of north coronal hole average density averaged over August 24, 1996, North pole colatitude 350 - 359.

NEW south coronal hole average density averaged over August 17, 1996, south pole colatitude 175 - 185.