Fluctuations in the soft X-ray background
Eight overlapping Rosat position sensitive proportional counter (PSPC) observations are discussed. The data concern the Lockman hole region and were analyzed in the 0.1 keV to 0.4 keV band. The contribution of noncosmic contaminants and bright discrete sources were removed from the data. A strong anticorrelation with column density was detected. Evidence for significant excess fluctuations superimposed on this anticorrelation was found. The fluctuations' possible origins are discussed.
Barber, C. R.↗