Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2011-06-13
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
6 pages, 4 figures, proceedings of 8th SCSLSA, to appear in Baltic Astronomy
Scientific paper
We present the detailed study of the stellar and gaseous kinematics of the luminous early-type galaxy NGC 524 derived from the long-slit spectroscopic observations obtained with the Russian 6-m telescope and the IFU data from the SAURON survey. The stellar line-of-sight velocity distribution (LOSVD) of NGC 524 exhibits strong asymmetry. We performed the comprehensive analysis of the LOSVD using two complementary approaches implemented on top of the nbursts full spectral fitting technique, (a) a nonparametric LOSVD recovery and (b) a parametric recovery of two Gaussian kinematical components having different stellar populations. We discuss the origin of the complex stellar LOSVD of NGC 524.
Afanasiev Victor
Chilingarian Igor
Katkov I. I.
Sil'chenko Olga
Zasov Anatoly
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