Astrophysics

    

Evaluating the Alignment of Astronomical Linear Polarization Data, Intermediate Level Software Version 2

Authors: Richard Shurtleff

The Hub Tests are two polarization alignment tests, designed with polarized astronomical sources in mind. By analogy, if the polarization directions were magnetic needle compass directions, then one test finds the best virtual North Pole and determines how well the polarization directions correlate with Local North. That is the 'alignment test'. The second test, the 'avoidance' test, asks how well the directions correlate with Local East. The tests are further described in an article, arXiv:1311.6118, where the tests are applied to an online data set measured, analyzed and published by others. This Mathematica notebook is meant to serve as a practical introduction to the Hub Tests. By replacing the DATA used here, a USER can evaluate other data sets.

Comments: 84 pages, Mathematica Notebook, 32 figures, 1 table

Download: PDF

Submission history

[v1] 2021-01-24 16:31:49
[v2] 2023-07-10 11:49:24

Unique-IP document downloads: 206 times

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