The discrete X-ray source population of the nearby Sculptor Group Galaxy NGC 55 as revealed by the Chandra X-ray Observatory

Thomas Pannuti, J. P. Napier, E. M. Schlegel, S. J. Laine, M. D. Filipovic, S. A. Griffith, W. D. Staggs

    Research output: Chapter in Book / Conference PaperConference Paper

    Abstract

    ![CDATA[We are conducting a multi-wavelength campaign to search for supernova remnants (SNRs) in nearby galaxies. Here we present the analysis of an archival Chandra X-ray Observatory observation of the nearby Sculptor Group galaxy NGC 55. In about 60 kiloseconds of observing time we detected 99 discrete point sources: the limiting unabsorbed luminosity of our observation is approximately 2x10^35 ergs/sec (assuming a distance to the galaxy of 1.8 Mpc). Of these, seven were detected with a sufficient number of counts (200 or more) to permit at least a basic spectral analysis. We find 36 sources in common between the high spatial resolution and high sensitivity Chandra observations and earlier lower resolution and lower sensitivity XMM-Newton X-ray telescope observations, and eight sources in common between Chandra, XMM-Newton and the even lower resolution ROSAT X-ray telescope. We are also analyzing radio and mid-infrared (namely Spitzer) observations of this galaxy to extend the search for resident SNRs and to estimate the star-formation rate of this galaxy. Initial results are presented and discussed. American Astronomical Society, AAS Meeting #221, #249.21)]]
    Original languageEnglish
    Title of host publicationAbstracts of the American Astronomical Society 221st Meeting, 6-10 January 2013, Long Beach, California, USA
    PublisherAmerican Astronomical Society
    Number of pages1
    Publication statusPublished - 2013
    EventAmerican Astronomical Society. Meeting -
    Duration: 1 Jan 2013 → …

    Conference

    ConferenceAmerican Astronomical Society. Meeting
    Period1/01/13 → …

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