C-Band All-Sky Survey: a first look at the Galaxy

We present an analysis of the diffuse emission at 5 GHz in the first quadrant of the Galactic plane using two months of preliminary intensity data taken with the C-Band All-Sky Survey (C-BASS) northern instrument at the Owens Valley Radio Observatory, California. Combining C-BASS maps with ancillary...

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Bibliographic Details
Published in:	Monthly notices of the Royal Astronomical Society 2015-04, Vol.448 (4), p.3572-3586
Main Authors:	Irfan, M. O, Dickinson, C, Davies, R. D, Copley, C, Davis, R. J, Ferreira, P. G, Holler, C. M, Jonas, J. L, Jones, Michael E, King, O. G, Leahy, J. P, Leech, J, Leitch, E. M, Muchovej, S. J. C, Pearson, T. J, Peel, M. W, Readhead, A. C. S, Stevenson, M. A, Sutton, D, Taylor, Angela C, Zuntz, J
Format:	Article
Language:	eng
Subjects:	Astronomical instruments Astronomy Diffusion Emission Planes Radiation Radio Spectral emissivity Stars & galaxies Symbols Synchrotrons Temperature Valleys
Online Access:	Get full text
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Summary:	We present an analysis of the diffuse emission at 5 GHz in the first quadrant of the Galactic plane using two months of preliminary intensity data taken with the C-Band All-Sky Survey (C-BASS) northern instrument at the Owens Valley Radio Observatory, California. Combining C-BASS maps with ancillary data to make temperature–temperature plots, we find synchrotron spectral indices of β = −2.65 ± 0.05 between 0.408 and 5 GHz and β = −2.72 ± 0.09 between 1.420 and 5 GHz for −10°
ISSN:	0035-8711 1365-2966