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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/011/03/0323-0410

    • Keywords

       

      radio continuum; synthesis mapping; wide-field; low-frequency

    • Abstract

       

      This paper describes a wide-field survey made at 34.5 MHz using GEETEE,1 the low frequency telescope at Gauribidanur (latitude 13°36′12′′N). This telescope was used in the transit mode and by per forming 1-D synthesis along the north-south direction the entire observable sky was mapped in a single day. This minimized the problems that hinder wide-field low-frequency mapping. This survey covers the declination range of-50° to + 70° (- 33° to +61° without aliasing) and the complete 24 hours of right ascension. The synthesized beam has a resolution of 26′ x 42′ sec (δ- 14°. 1). The sensitivity of the survey is 5 Jy/beam (1σ). Special care has been taken to ensure that the antenna responds to all angular scale structures and is suitable for studies of both point sources and extended objects

    • Author Affiliations

       

      K. S. Dwarakanath1 N. Udaya Shankar1

      1. Raman Research Institute, Bangalore - 560080
    • Dates

       
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