The edge of the M 87 halo and the kinematics of the diffuse light in the Virgo cluster core
Aims. We study the kinematics and dynamics of the extreme outer halo of M 87, the central galaxy in the Virgo cluster; and its transition to the intracluster light (ICL). Methods. We present high resolution FLAMES/VLT spectroscopy of intracluster planetary nebula (PN) candidates, targeting three new fields in the Virgo cluster core with surface brightness down to μB = 28.5. Based on the projected phase space information (sky positions and line-of-sight velocities) we separate galaxy and cluster...[Show more]
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|Source:||Astronomy and Astrophysics|
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