F. Atriobarandela et L. Cayon, IS A HARRISON-ZELDOVICH POWER SPECTRUM COMPATIBLE WITH THE TENERIFE COSMIC MICROWAVE BACKGROUND EXPERIMENT, The Astrophysical journal, 465(2), 1996, pp. 523-526
We analyze whether the large variance of the temperature held measured
by the Tenerife experiment can be obtained by sampling an active regi
on of a cosmic microwave sky characterized by a matter power spectrum
with slope n = 1. We employ the technique of constrained realizations
of Gaussian random fields to generate sky maps, smoothed to COBE Diffe
rential Microwave Radiometer scales, containing a hot spot at a prespe
cified location. We show that when Tenerife is normalized to Q(rms-PS)
= 20 mu K, the high variance can be explained at the 68% confidence l
evel as originating from a 2.5 sigma or larger deviation from a scale-
invariant power spectrum.