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Comparison of the COBE DMR and Tenerife Data

Bibcode
1995ApJ...448..482L
DOI
10.1086/175978
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.
Referencia bibliográfica

Astrophysical Journal v.448, p.482

Fecha de publicación:
8
1995
Número de autores
9
Número de autores del IAC
1
Número de citas
36
Número de citas referidas
27
Descripción
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%.
Tipo
Con árbitro
Cosmología
Radiación difusa

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