IS A HARRISON-ZELDOVICH POWER SPECTRUM COMPATIBLE WITH THE TENERIFE COSMIC MICROWAVE BACKGROUND EXPERIMENT

Citation
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
Citations number
18
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
0004637X
Volume
465
Issue
2
Year of publication
1996
Part
1
Pages
523 - 526
Database
ISI
SICI code
0004-637X(1996)465:2<523:IAHPSC>2.0.ZU;2-K
Abstract
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.