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Limitations Of The Tangent Plane Approximation For Wide-field Imaging Using The Mauritius Radio Telescope

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Abstract

The Mauritius Radio Telescope (MRT) is a Fourier synthesis, non-coplanar T array. The primary objective of the telescope is to survey the southern sky at 151.5 MHz in the declination range -70° to -10°. Due to non-coplanarity, wide-field imaging and deconvolution of wide field images made using MRT are challenging problems in applications of radio interferometric techniques. This paper discusses the usefulness and limitations of the tangent plane approximation in transforming the measured visibilities to wide field images and in estimating the point spread function (PSF) required for the deconvolution.

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Authors and Affiliations

  1. Department of Physics, University of Mauritius, Reduit, Mauritius

    N. Oozeer

  2. Raman Research Institute, Sadashivanagar, Bangalore, 560080, India

    N. Udaya Shankar

Authors
  1. N. Oozeer
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  2. N. Udaya Shankar
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Oozeer, N., Udaya Shankar, N. Limitations Of The Tangent Plane Approximation For Wide-field Imaging Using The Mauritius Radio Telescope. Astrophysics and Space Science 282, 43–55 (2002). https://doi.org/10.1023/A:1021129931737

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  • DOI: https://doi.org/10.1023/A:1021129931737

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