Spatially resolved stellar population parameters in the BCGs of two fossil groups

Robert N Proctor,Claudia Mendes De Oliveira,Paul Eigenthaler

Monthly Notices of the Royal Astronomical Society（2014）

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摘要

We report the results of Gemini/GMOS long-slit spectroscopic observations along the major and minor axes of the central galaxies in two fossil groups, SDSS J073422.21+265133.9 and SDSS J075828.11+374711.8 (the NGC 2484 group). Spatially resolved kinematics and stellar population parameters (ages, metallicities and α-element abundance ratios) derived using ∼20 Lick indices are presented. Despite re...

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关键词

galaxies: elliptical and lenticular, cD,galaxies: groups: general,galaxies: kinematics and dynamics,galaxies: stellar content

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