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The effects of the vision on the central opacity and the positions of the curves invers for the brightness of the assumed elliptic sphere | ||
| Journal of Education and Science | ||
| Article 18, Volume 18, Issue 1, 2006, Pages 79-96 PDF (0 K) | ||
| DOI: 10.33899/edusj.2006.78665 | ||
| Authors | ||
| Saad Younis; Omer Salih | ||
| Abstract | ||
| The seeing effects on spherical symmetric Elliptical galaxy type EO following the r1/4- model has been calculated by using two type of the point spread function the Gaussian and Moffat functions . This study showed that the amount of central dimming Au;(0) for the seeing convolved Elliptical galaxy have an exponentially relationship with the reduced central dispersion value (a / re) of the point spread function , also the same proportion has been found for changeable positions r± for the seeing convolved surface brightness profiles . The relationships for the central dimming Au(0) and the changeable positions r± as a function of the reduced central dispersion have been found. | ||
| Keywords | ||
| central opacity; spherical symmetric Elliptical galaxy | ||
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