Search for Spatial and Spectral Fluctuations of the Cosmic Microwave Background Radiation Using the RATAN-600 Radio Telescope

Details Search for Spatial and Spectral Fluctuations of the Cosmic Microwave Background Radiation Using the RATAN-600 Radio Telescope Search for Spatial and Spectral Fluctuations of the Cosmic Microwave Background Radiation Using the RATAN-600 Radio Telescope

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002arep...46..543g&link_type=abstract

Astronomy Reports, Vol. 46, Issue 7, pp. 543-550

Astronomy and Astrophysics

Astronomy

3

Scientific paper

We report the results of a search for spatial and spectral fluctuations of the cosmic microwave background in the region of the North celestial pole carried out at 6.2 cm using the RATAN-600 radio telescope in 1999 2000. The spatial spectrum is flat and has no features exceeding ΔT/T =10-3 in a ˜1 MHz frequency band for spatial periods from 0.5′ to 16′. If this estimate is adopted as an upper limit for emission associated with the first rotational transition of primordial LiH at z=90.7, we obtain an upper limit for the LiH abundance of about 3×10-14 for protocluster masses of about 1013 M &sun;.

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