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2005MNRAS.359..455R - Mon. Not. R. Astron. Soc., 359, 455-463 (2005/May-2)
A Chandra view of the anomalous half-merger NGC 520.
READ A.M.
Abstract (from CDS):
Although only half of NGC 520 appears in X-rays as other mergers do, there is still a wealth of structure and detail: 15 X-ray sources are detected within the system, many of them showing long-term variability, including a small number of bright ULXs that flatten the source X-ray luminosity function to a level similar to that of the Antennae and other mergers. Lastly, to see what appears to be a starburst-driven diffuse galactic wind, with a spectrum entirely consistent with that of other known galactic winds, although unusually, emanating from only one of the nuclei, is a surprise, given that one might have expected such structures to have distorted very quickly in such a rapidly evolving environment. The wind is larger and more massive than structures seen in evolutionarily earlier systems (e.g. the Mice), but smaller and less massive than as seen in later systems (e.g. the Antennae) or classic starbursts. Perhaps these structures can survive for longer than was previously thought.
Abstract Copyright: 2005 RAS
Journal keyword(s): ISM: jets and outflows - galaxies: haloes - galaxies: individual: NGC 520 - galaxies: ISM - galaxies: starburst - X-rays: galaxies
Nomenclature: Table 2: [R2005b] NN N=15 among (Nos 7-26).
Simbad objects: 31