Maximum entropy imaging of polarization in very long baseline interferometry

Details Maximum entropy imaging of polarization in very long baseline interferometry Maximum entropy imaging of polarization in very long baseline interferometry

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1351..714h&link_type=abstract

IN: Digital image synthesis and inverse optics; Proceedings of the Meeting, San Diego, CA, July 9-13, 1990 (A92-18776 05-74). Be

Astronomy and Astrophysics

Astronomy

1

Image Enhancement, Image Processing, Linear Polarization, Maximum Entropy Method, Radio Astronomy, Very Long Base Interferometry, Brightness Distribution, Data Reduction, Optimization, Point Spread Functions

Scientific paper

Simultaneous deconvolution of the Stokes parameter images I, Q, and U from a shift invariant point spread function is achieved by extending the maximum entropy algorithm of Cornwell and Evans (1985) to deal with linear polarization. This algorithm is used to image very long baseline interferometer (VLBI) total intensity and linear polarization data. Unresolved features can be removed from the data via other methods prior to maximum entropy deconvolution, or the data can be tapered with a Gaussian beam to smooth any point sources.

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