A radio continuum survey of the southern sky at 1420 MHz

Free access article

Issue		A&A Volume 376, Number 3, September IV 2001


Page(s)		861 - 877
Section		Galactic structure and dynamics
DOI		http://dx.doi.org/10.1051/0004-6361:20011000

A&A 376, 861-877 (2001)
DOI: 10.1051/0004-6361:20011000

The atlas of contour maps

P. Reich¹, J. C. Testori² and W. Reich¹

¹ Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
² Instituto Argentino de Radioastronomía, C.C. 5, 1894 Villa Elisa (Prov. de Bs. As.), Argentina

(Received 22 May 2001 / Accepted 22 June 2001)

Abstract
The results of an absolutely calibrated radio continuum survey of the South Celestial Hemisphere at a frequency of 1420 MHz are presented. Contour maps show the area $\rm0^h \leq RA \leq 24^h$ for the declination range $-90\degr$ to $-10\degr$ . Contour steps (50 mK T_B; 3 $\times$ rms noise) and angular resolution (HPBW 35 $\farcm$ 4) of the maps match the already existing Stockert northern sky survey at the same frequency. We compare flux densities of compact and extended sources with published data from the Parkes 64-m telescope and find excellent agreement in general. The survey maps are sensitive enough to constrain synchrotron and thermal emission components which might influence studies of the cosmic microwave background.

Key words: surveys -- Galaxy: general -- radio continuum: general

Offprint request: P. Reich, preich@mpifr-bonn.mpg.de

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