Other
Scientific paper
Aug 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.257..507c&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 257, no. 3, Aug. 1, 1992, p. 507-512. Research supporte
Other
15
Background Radiation, Cosmology, Diffuse Radiation, Quasars, X Ray Sources, Autocorrelation, Energy Spectra, Isotropy, Red Shift, Rosat Mission
Scientific paper
Recent studies of the autocorrelation function of the soft X-ray background on arcmin scales, carried out with imaging instruments (basically the Rosat PSPC), are used to constrain the clustering properties of the sources of the residual background, namely what is left after sources brighter than about 10 exp -14 erg/sq cm s in the 0.5-2 keV band have been removed. It is concluded that sources clustering like optically selected QSOs cannot provide more than about 60 percent of the residual intensity. If, on the other hand, it is assumed that galaxies produce the bulk of the residual background, then on very general grounds it is concluded that the evolution of their spatial correlation function has to be extremely rapid (not less than the rate of stable clustering) at the relevant redshifts of 0.5-3. Future studies of the autocorrelation function on these scales leading to smaller upper limits will show whether clusters are stable or still growing, either linearly or nonlinearly, at these redshifts.
Barcons Xavier
Carrera Francisco J.
No associations
LandOfFree
The spatial distribution of cosmic X-ray sources from the isotropy of the soft X-ray background does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The spatial distribution of cosmic X-ray sources from the isotropy of the soft X-ray background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The spatial distribution of cosmic X-ray sources from the isotropy of the soft X-ray background will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1167872