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    NGC 741 - Mergers and AGN Feedback on a Galaxy-group Scale

    Access Status
    Fulltext not available
    Authors
    Schellenberger, G.
    Vrtilek, J.
    David, L.
    O'Sullivan, E.
    Giacintucci, S.
    Johnston-Hollitt, Melanie
    Duchesne, Stefan
    Raychaudhury, S.
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Schellenberger, G. and Vrtilek, J. and David, L. and O'Sullivan, E. and Giacintucci, S. and Johnston-Hollitt, M. and Duchesne, S. et al. 2017. NGC 741 - Mergers and AGN Feedback on a Galaxy-group Scale. Astrophysical Journal. 845 (1).
    Source Title
    Astrophysical Journal
    DOI
    10.3847/1538-4357/aa7f2e
    ISSN
    0004-637X
    School
    Curtin Institute of Radio Astronomy (Physics)
    URI
    http://hdl.handle.net/20.500.11937/71398
    Collection
    • Curtin Research Publications
    Abstract

    © 2017. The American Astronomical Society. All rights reserved. Low-mass galaxy cluster systems and groups will play an essential role in upcoming cosmological studies, such as those to be carried out with eROSITA. Though the effects of active galactic nuclei (AGNs) and merging processes are of special importance to quantify biases like selection effects or deviations from hydrostatic equilibrium, they are poorly understood on the galaxy-group scale. We present an analysis of recent deep Chandra and XMM-Newton integrations of NGC 741 that provides an excellent example of a group with multiple concurrent phenomena: both an old central radio galaxy and a spectacular infalling head-tail source, strongly bent jets, a 100-kpc radio trail, intriguing narrow X-ray filaments, and gas-sloshing features. Supported principally by X-ray and radio continuum data, we address the merging history of the group, the nature of the X-ray filaments, the extent of gas-stripping from NGC 742, the character of cavities in the group, and the roles of the central AGN and infalling galaxy in heating the intra-group medium.

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