SIMBAD references

2011A&A...525A.138G - Astronomy and Astrophysics, volume 525A, 138-138 (2011/1-1)

All-sky galactic radiation at 45 MHz and spectral index between 45 and 408 MHz.

GUZMAN A.E., MAY J., ALVAREZ H. and MAEDA K.

Abstract (from CDS):

We study the Galactic large-scale synchrotron emission by generating a reliable all-sky spectral index map and temperature map at 45MHz. We use our observations, the published all-sky map at 408MHz, and a bibliographical compilation to produce a map corrected for zero-level offset and extragalactic contribution.We present full sky maps of the Galactic emission at 45MHz and the Galactic spectral index between 45 and 408MHz with an angular resolution of 5°. The spectral index varies between 2.1 and 2.7, reaching values below 2.5 at low latitude because of thermal free-free absorption and its maximum in the zone next to the Northern Spur.

Abstract Copyright:

Journal keyword(s): Galaxy: structure - radio continuum: ISM - radiation mechanisms: non-thermal - ISM: magnetic fields - cosmic rays

VizieR on-line data: <Available at CDS (J/A+A/525/A138): wlb45.fits>

Simbad objects: 20

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2019.09.16-01:18:12

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