Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997pobeo..57..129v&link_type=abstract
Publications of the Astronical Observatory of Belgrade, No. 57, p. 129 - 132
Astronomy and Astrophysics
Astronomy
Solar Spectrographs: Line Profiles
Scientific paper
The apparatus function of Belgrade solar spectrograph for different entrance slit widths is determined using the He-Ne laser 633 nm line. CCD spectrograms of 0.25 nm wavelength interval at λ = 630 nm were taken with different entrance slit widths. The Fourier transform method is applied for deconvolution of corresponding instrumental profiles. It is shown that the central intensity and the full width at half maximum of reconstructed line profiles of strong spectral lines do not depend on the entrance slit width, but for week spectral lines such a dependence is evident for entrance slit widths wider than 150 μm. The equivalent with is invariant with respect to the entrance slit width variation.
Jevremovic Darko
Kubicela A.
Popovic Luka C.
Vince Istvan
Vince Oliver
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