Large and Small Scale Gas Motions in the Virgo/M87 System

Details Large and Small Scale Gas Motions in the Virgo/M87 System Large and Small Scale Gas Motions in the Virgo/M87 System

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.3415f&link_type=abstract

American Astronomical Society, HEAD meeting #11, #34.15; Bulletin of the American Astronomical Society, Vol. 41, p.713

Astronomy and Astrophysics

Astronomy

Scientific paper

We present XMM-Newton, Suzaku, and Chandra observations of the Virgo/M87 system that show the gas dynamics and galaxy motions on scales from 10's to 100's of kpc. We find ram pressure stripped X-ray "tails" indicating galaxy motions in the Virgo cluster core surrounding M87 and compare these tails to HI and H-alpha emission. We discuss a large scale cold front at a radius of 90 kpc from the center of M87 indicating motion of the gas in the cluster core, in relation to the galaxy motions. We present gas temperature, density, and abundance profiles from combined Chandra and XMM-Newton observations and discuss the cold front and the distribution of heavy elements in the context of "gas sloshing" (most likely driven by galaxy mergers). On small scales, we describe a detailed model for the 13 kpc shock centered on M87, which constrains the properties of the supermassive black hole outburst including the outburst age, total energy and duration.

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