首页> 外文期刊>The Astrophysical Journal. Supplement Series >Spatially Resolved Spectroscopy of Coma Cluster Early-Type Galaxies. IV. Completing the Data Set1
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Spatially Resolved Spectroscopy of Coma Cluster Early-Type Galaxies. IV. Completing the Data Set1

机译:昏迷星团早期类型星系的空间分辨光谱。 IV。完成数据集1

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摘要

The long-slit spectra obtained along the minor axis, offset major axis, and diagonal axis are presented for 12 E and S0 galaxies of the Coma Cluster drawn from a magnitude-limited sample studied before. The rotation curves, velocity dispersion profiles, and the and coefficients of the Hermite decomposition of the line-of-sight velocity distribution are derived. The radial profiles of the Hβ, Mg, and Fe line strength indices are measured too. In addition, the surface photometry of the central regions of a subsample of four galaxies recently obtained with the Hubble Space Telescope is presented. The data will be used to construct dynamical models of the galaxies and study their stellar populations.
机译:给出了从以前研究的幅度有限的样本中提取出来的12个E和S0星系的彗星星团沿短轴,偏移长轴和对角轴获得的长缝光谱。得出了视线速度分布的旋转曲线,速度色散分布图以及Hermite分解的和系数。还测量了Hβ,Mg和Fe线强度指数的径向分布。此外,还介绍了最近用哈勃太空望远镜获得的四个星系子样本中心区域的表面光度。这些数据将用于构建星系的动力学模型并研究其恒星种群。

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