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J/A+A/525/A138      All-sky Galactic radiation at 45MHz      (Guzman+, 2011)

All-sky Galactic radiation at 45 MHz and spectral index between 45 and 408 MHz. Guzman A.E., May J., Alvarez H., Meada K. <Astron. Astrophys. 525, A138 (2011)> =2011A&A...525A.138G
ADC_Keywords: Surveys ; Radio continuum Keywords: Galaxy: structure - radio continuum: ISM - radiation mechanisms: non-thermal - ISM: magnetic fields - cosmic rays Abstract: We study the Galactic large-scale synchrotron emission by generating a reliable all-sky spectral index map and temperature map at 45MHz. Description: 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. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file list.dat 84 2 List of fits files fits/* 0 2 Individual fits files
Byte-by-byte Description of file: list.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Nx Number of pixels along X-axis 6- 8 I3 --- Ny Number of pixels along Y-axis 10- 13 I4 Kibyte size Size of FITS file 15- 26 A12 --- FileName Name of FITS file, in subdirectory fits 28- 84 A57 --- Title Title of the FITS file
Acknowledgements: Andres Guzman, aguzman(at) History: 10-Dec-2010: On-line version 02-Nov-2016: File b45-408.fits added
(End) Patricia Vannier [CDS] 09-Dec-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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