On Removal of the Gradual Component in Analyses of Solar Impulsive Bursts
Abstract
Three methods are considered for the removal of the gradual component in solar flare time profiles. It is emphasized that a time-dependent gradual component can introduce apparent delays between impulsive extrema which may be misinterpreted in terms of physical processes. Running mean subtraction always produces negligible delays in comparison with the period of the fast component; thus, it has major advantages compared with second derivatives and Fourier filtering for recovering the impulsive component.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- June 1990
- DOI:
- 10.1086/191451
- Bibcode:
- 1990ApJS...73..191C
- Keywords:
-
- Solar Flares;
- Solar Radio Bursts;
- Filtration;
- Fourier Analysis;
- Solar X-Rays;
- Solar Physics;
- SUN: FLARES;
- SUN: RADIO RADIATION;
- SUN: X-RAYS