Baltic astronomy | |
A Complex Stellar Line-of-Sight Velocity Distribution in the Lenticular Galaxy NGC 524 | |
article | |
I. Katkov1  I. Chilingarian2  O. Sil’chenko1  A. Zasov1  V. Afanasiev3  | |
[1] Sternberg Astronomical Institute, Moscow State University;CDS – Observatoire de Strasbourg, CNRS UMR 7550, Universit´e de Strasbourg;Russian Academy of Sciences | |
关键词: galaxies; kinematics and dynamics; individual NGC 524; | |
DOI : 10.1515/astro-2017-0318 | |
来源: Institute of Theoretical Physics and Astronomy | |
【 摘 要 】
We present a detailed study of the stellar and gaseous kinematics in 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 a comprehensive analysis of the LOSVD using two complementary approaches by the nbursts full spectral fitting technique: (a) a non-parametric 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.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO202108210000120ZK.pdf | 641KB | download |