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  • 标题:A Complex Stellar Line-of-Sight Velocity Distribution in the Lenticular Galaxy NGC 524
  • 本地全文:下载
  • 作者:I. Katkov ; I. Chilingarian ; O. Sil’chenko
  • 期刊名称:Open Astronomy
  • 电子版ISSN:2543-6376
  • 出版年度:2011
  • 卷号:20
  • 期号:3
  • 页码:453-458
  • DOI:10.1515/astro-2017-0318
  • 语种:English
  • 出版社:Walter de Gruyter GmbH & Co. KG
  • 摘要:AbstractWe 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.
  • 关键词:Keywordsgalaxieskinematics and dynamicsindividual NGC 524
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