Speaker
Laurent Dolla
(Royal Observatory of Belgium)
Description
In addition to the polarised and unpolarised wideband filters (white light continuum), The PROBA-3/ASPIICS coronagraph has two narrowband filters (NBF) centered on specific spectral lines: Fe XIV (530.45 nm; FWHM 0.5 nm; imaging the corona around 1.5-2 MK) and He I D3 (587.72 nm; FWHM 2 nm; imaging prominences). Because the wideband filter is quasi-free of any coronal emission line, it is possible to separate, in the NBF channels, the spectral line and continuum contributions. We will present the most recent calibration of the NBF and the analysis of the images after continuum subtraction.
Author
Laurent Dolla
(Royal Observatory of Belgium)
