Gas-Dynamics of a High Speed Encounter: The Interaction of NGC 6872 with the Pavo Group

Details Gas-Dynamics of a High Speed Encounter: The Interaction of NGC 6872 with the Pavo Group Gas-Dynamics of a High Speed Encounter: The Interaction of NGC 6872 with the Pavo Group

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.2049m&link_type=abstract

Chandra Proposal ID #07610299

Physics

Chandra Proposal Id #07610299

Scientific paper

Studies of interactions in nearby galaxy groups provide templates for similar processes at high redshift when structure was rapidly evolving. We will use a deep ACIS-I observation to study the supersonic passage of NGC6872 through the Pavo Group core, traced by the 100 kpc long X-ray trail along its path. We will use surface brightess and temperature maps to determine the importance of tidal, ram-pressure, and turbulent-viscous stripping and gravitational focusing for trail formation and evolution of NGC6872, search for the predicted bow-shock, identify ULX's in/near the affected galaxies, and investigate the effect of this encounter on the Pavo Group IGM. Physical models will be refined using new adaptive hydrodynamics simulations.

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