A 1400 MHz sky survey. I - Confusion-limited maps covering 7h 30 M less than alpha less than 19h 30m, -5 deg less than delta less than 82 deg

Details A 1400 MHz sky survey. I - Confusion-limited maps covering 7h 30 M less than alpha less than 19h 30m, -5 deg less than delta less than 82 deg A 1400 MHz sky survey. I - Confusion-limited maps covering 7h 30 M less than alpha less than 19h 30m, -5 deg less than delta less than 82 deg

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90.2540c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 90, Dec. 1985, p. 2540-2549.

Astronomy and Astrophysics

Astronomy

84

Astronomical Maps, Northern Sky, Radio Sources (Astronomy), Sky Surveys (Astronomy), Continuous Radiation, Data Reduction, Errors, Galactic Structure, Point Sources, Telescopes

Scientific paper

The NRAO 91 m transit telescope and rebuilt four-feed receiver were used to make a 1400 MHz continuum survey covering -5 deg less than delta less than +82 deg with 12.7 arcmin x 11.1 arcmin resolution. Maps of the right ascension range 7h 30m less than alpha less than 19h 30m (= 3.4 sr) have been produced, with 100 arcmin baselines subtracted to reveal point sources, while suppressing galactic structures extending more than about 1 deg in declination. These maps contain about 3000 sources per sr stronger than 0.15 Jy, which is six times the rms extragalactic confusion and more than ten times the rms noise. They are available on FITS tapes and can be studied with standard AIPS display and analysis programs. The total-power receiver baselines are quite stable, so that emission as extended as the galactic plane is accurately represented in the scan data. Other maps, which highlighted extended galactic structures and cover the remaining right ascension range, are in preparation.

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