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|Title:||Limitations of the tangent plane approximation for wide-field imaging|
Udaya Shankar, N.
Point Spread Function,
Tangent Plane Approximation
|Citation:||Astrophysics and Space Science, 2002, Vol.282, p43-55|
|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.|
|Copyright:||(2002) Kluwer Academic Publishers.|
|Appears in Collections:||Research Papers (A&A)|
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|2002 A&SS V282 p43.pdf|
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