Solving for closure errors due to polarization leakage in radio interferometry of unpolarized sources

Details Solving for closure errors due to polarization leakage in radio interferometry of unpolarized sources Solving for closure errors due to polarization leakage in radio interferometry of unpolarized sources

2001-06-20

arxiv.org/abs/astro-ph/0106348v1

Astronomy and Astrophysics

Astrophysics

8 pages, 3 figures. Accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20010799

Mechanical and electronic imperfections can result into polarization leakage in individual antennas of a radio interferometer. Such leakages manifest themselves as closure errors even in co-polar visibility measurements of unpolarized sources. This paper describes and tests a method for the study of polarization leakage for radio interferometric telescopes using {\it only} the nominally co-polar visibilities for unpolarized calibrators. Interpretation of the resulting closure phases on the Poincar\'e sphere is presented. Since unpolarized sources are used, the actual solutions for leakage parameters is subject to a degeneracy which is discussed. This however, does not affect the correction of closure errors in our scheme.

Affiliated with

Also associated with

No associations

Rating

Solving for closure errors due to polarization leakage in radio interferometry of unpolarized sources does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Solving for closure errors due to polarization leakage in radio interferometry of unpolarized sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solving for closure errors due to polarization leakage in radio interferometry of unpolarized sources will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-517168