2001/05/07 by A. M. Read, W. Pietsch · 1 citation
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Black hole (networking) #Galaxies: Formation, Evolution, Phenomena #Galaxy #Hubble sequence #Luminosity #Point source #ROSAT #Spiral galaxy #Supernova #astro-ph
paper · pdf · doi:10.1051/0004-6361:20010636
12 pages, latex file, 7 compressed postscript figures, to appear in A&A
arxiv created 2001/05/07 · openalex publication_date 2001/07/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report here the results of a full analysis of all the ROSAT PSPC spectral imaging observations and all the ROSAT HRI high resolution imaging observations of the very nearby ( Mpc) Sculptor galaxy, NGC 300. Many point sources are detected within the field, several of them showing evidence for variability, and we present full source lists detailing their X-ray properties, and attempt to classify them on the basis of their temporal, spectral and multi-wavelength characteristics. A black hole X-ray binary candidate, a supersoft source and several supernova remnants and H ii regions are detected in X-rays, as is unresolved, possibly diffuse emission, accounting for perhaps ~20% of the total NGC 300 X-ray (0.1-2.4 keV) luminosity ( erg s-1). We compare the X-ray source luminosity distribution of NGC 300 with that of other nearby galaxies, and we also compare NGC 300 with its Sculptor neighbours, concluding that it is a quite an unremarkable system, showing no unusual X-ray (or other multi-wavelength) properties. It may be one of the best examples of a completely typical normal quiescent late-type spiral galaxy.