OptiPol

Polarization Calibrators

• Paul Smith’s polarization standards list at U. Arizona
• Nordic Optical Telescope high-polarization standards
• Nordic Optical Telescope zero-polarization standards

Favorites of B-G Andersen: Zero pol: HD 212311 and BD+28 4211 — High pol: HD 204827 and HD19820

OptiPol Startup instructions

Some explanatory documents on polarization data

• An undergraduate lab explanation
• Wollaston prism simple technique
• Wollaston prism better Tinbergen technique
• Error propogation
• Error propogation Tinbergen technique

Chip’s polphot.py to do photometry on CCDproceed images (CR cleaning, bias, dark, flat already done) and compute stokes parameters for 00/22/45/67 sets of four.