Bibcode
DOI
Lineweaver, C. H.; Hancock, S.; Smoot, G. F.; Lasenby, A. N.; Davies, R. D.; Banday, A. J.; Gutierrez de La Cruz, C. M.; Watson, R. A.; Rebolo, R.
Bibliographical reference
Astrophysical Journal v.448, p.482
Advertised on:
8
1995
Citations
36
Refereed citations
27
Description
We have compared the Tenerife data with the COBE Differential Microwave
Radiometer (DMR) 2 year data in the declination +40° region of the
sky observed by the Tenerife experiment. Using the Galactic plane signal
at ˜30 GHz, we show that the two data sets are cross-calibrated to
within 5%. The high Galactic latitude data were investigated for the
presence of common structures with the properties of cosmic microwave
background (CMB) fluctuations. The most prominent feature in the
Tenerife data (ΔT ˜ 80 μK) appears to be present in both
the 53 and 90 GHz DMR maps and has the Planckian spectrum expected for
CMB anisotropy. The cross-correlation function of the Tenerife and DMR
scans is indicative of common structure and at zero lag has the value
C(0)½ = 34+13-15 μK. The
combination of the spatial and spectral information from the two data
sets is consistent with the presence of cosmic microwave background
anisotropies common to both. The probability that noise could produce
the observed agreement is less than 5%.