Spectral index determination between 408 MHz and 5 GHz in the northern sky

Details Spectral index determination between 408 MHz and 5 GHz in the northern sky Spectral index determination between 408 MHz and 5 GHz in the northern sky

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001mnras.327..545j&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 327, Issue 2, pp. 545-551.

Astronomy and Astrophysics

Astronomy

5

Radiation Mechanisms: General, Surveys, Cosmic Microwave Background, Cosmology: Observations, Radio Continuum: General, Radio Continuum: Ism

Scientific paper

We present the joint analysis of two 5-GHz interferometric surveys of the northern sky, taken with different baselines. The two surveys were carried out on the Jodrell Bank 5-GHz interferometer based at Manchester. The Maximum Entropy Method is used to check the consistency of the two surveys and the final two-dimensional maps are used, together with low-frequency full sky surveys, to put constraints on the Galactic spectral index. It is found that synchrotron emission is the dominant process at high Galactic latitudes below 5GHz.

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