UNIVERSITY OF CAMBRIDGE
Department of Applied Mathematics
and Theoretical Physics
CDS data analysis + spectroscopy using CHIANTI - MEDOC 2003
Giulio Del Zanna
1 Introduction
2 CDS
2.1 Slits and movements
2.2 Pointings
2.3 Solar rotation
2.4 NIS
2.5 GIS
2.6 More on GIS
2.7 GIS effects
2.8 Designing CDS studies
2.9 The CDS data
3 The normal incidence spectrometer
3.1 Which data windows are available ?
3.2 NIS scattered light
3.3 Subtraction of the CCD bias
3.4 Cosmic ray removal
3.5 Corrections for flat-fielding, burn-in and nonlinear effects, using VDS_CALIB
3.6 Correction for geometric distortions, using VDS_ROTATE / NIS_ROTATE
3.7 Other geometric effects to remember
3.8 Wavelengths
3.9 Spatial resolution and binning along the slit
3.10 Spectral resolution and line profiles. Pre/post-recovery
3.11 Line-fitting
4 CDS Radiometric Calibration
4.1 The absolute sensitivity as a function of wavelength.
4.2 Details on the sensitivities
4.3 NIS and GIS sensitivities
4.4 The telescope aperture At(mir, l)
4.5 Other factors
4.6 The Radiometric Calibration in practice
4.7 Error estimates.
5 A selection of NIS and GIS spectra, with synthetic spectra
5.1 Post-recovery
6 Compare CDS images with other solar data
7 CDS Line lists
8 GIS
9 Diagnostics
9.1 Optically thin emission lines
9.2 Density and temperature diagnostics from line intensities
9.3 The emission measure loci approach
9.4 The EM approximations
UNIVERSITY OF CAMBRIDGE
UNIVERSITY OF CAMBRIDGE