Abstract
Observations of the Virgo Cluster galaxy NGC 4569 in soft X-rays and in Hα reveal both an asymmetrically distributed hot gaseous halo and a giant filament of diffuse emission, respectively, extending from the same side of the disk, the latter one to at least 8.8 kpc. A deep longslit spectrum along the filament shows velocities systematically different from the systemic velocity of NGC 4569. With the inclination of the disk one can determine the Hα spur as a giant outflow in NGC 4569.
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Hensler, G., Tschöke, D., Bomans, D. et al. The gaseous Halo of the Virgo Cluster Galaxy 45. Astrophysics and Space Science 284, 467–470 (2003). https://doi.org/10.1023/A:1024091824291
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DOI: https://doi.org/10.1023/A:1024091824291