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Dissecting Kinematics and Stellar Populations of Counter-Rotating Galaxies with 2-Dimensional Spectroscopy

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arxiv 1402.5346 v1 pith:IUBUJDMS submitted 2014-02-21 astro-ph.GA astro-ph.CO

classification astro-ph.GAastro-ph.CO
keywords galaxiescounter-rotatingstellardecompositiondiskskinematicspopulationsspectral
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We present a spectral decomposition technique and its applications to a sample of galaxies hosting large-scale counter-rotating stellar disks. Our spectral decomposition technique allows to separate and measure the kinematics and the properties of the stellar populations of both the two counter-rotating disks in the observed galaxies at the same time. Our results provide new insights on the epoch and mechanism of formation of these galaxies.

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