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1 results

  • A Chandra Observation of the Nearby Sculptor Group Sd Galaxy NGC 7793

  • Thomas G. Pannuti, Eric M. Schlegel, Christina K. Lacey
  • Journal:
    Proceedings of the International Astronomical Union / Volume 1 / Issue S230 / August 2005
    Published online by Cambridge University Press:
    12 May 2006, pp. 197-198
    Print publication:
    August 2005
    • Article
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  • We present the results of a Chandra observation made of the nearby spiral galaxy NGC 7793: the effective exposure time of this observation was 49094 seconds. Twenty-two discrete sources were identified at a minimum of a 3$\sigma$ level to an estimated limiting luminosity of ∼$2\times10^{36}$ ergs sec$^{-1}$. We have performed a spectral analysis of the known ultraluminous X-ray source (ULX) in this galaxy: statistically-acceptable fits to the spectrum can be obtained with either a power law model, a bremsstrahlung model or a DISKBB model. We have also searched for counterparts at multiple wavelengths to these sources: based on this search, we have classified two supernova remnants, one HII region and two foreground stars.