2 papers
astro-ph2001
The Low-Energy Spectral Response of the ACIS CCDs
Paul P. Plucinsky, Richard J. Edgar, Shanil N. Virani +2
The flight calibration of the spectral response of the Advanced CCD Imaging Spectrometer (ACIS) below 1.5 keV is difficult because of the lack of strong lines in the calibration so…
astro-ph2000
Non-equilibrium Ionization and FIP Effect Diagnostics
Richard J. Edgar, Ruth Esser
We examine the accuracy of a common FIP effect diagnostic, the ratio of Ne VI to Mg VI lines in the solar transition region. Since the two ions have quite similar contribution func…