A Chandra Observation of the Nearby Sculptor Group Sd Galaxy NGC 7793
2005; Cambridge University Press; Volume: 1; Issue: S230 Linguagem: Inglês
10.1017/s1743921306008192
ISSN1743-9221
AutoresT. G. Pannuti, E. M. Schlegel, C. K. Lacey,
Tópico(s)Astrophysical Phenomena and Observations
ResumoWe 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. 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.
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