Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP

Details Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP

2010-07-16

arxiv.org/abs/1007.2874v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

13 pages, 10 figures and 2 tables. To appear in Proceedings of SPIE Astronomical Telescopes and Instrumentation 2010

Scientific paper

We present a method of cross-calibrating the polarization angle of a polarimeter using BICEP Galactic observations. \bicep\ was a ground based experiment using an array of 49 pairs of polarization sensitive bolometers observing from the geographic South Pole at 100 and 150 GHz. The BICEP polarimeter is calibrated to +/-0.01 in cross-polarization and less than +/-0.7 degrees in absolute polarization orientation. BICEP observed the temperature and polarization of the Galactic plane (R.A= 100 degrees ~ 270 degrees and Dec. = -67 degrees ~ -48 degrees). We show that the statistical error in the 100 GHz BICEP Galaxy map can constrain the polarization angle offset of WMAP Wband to 0.6 degrees +\- 1.4 degrees. The expected 1 sigma errors on the polarization angle cross-calibration for Planck or EPIC are 1.3 degrees and 0.3 degrees at 100 and 150 GHz, respectively. We also discuss the expected improvement of the BICEP Galactic field observations with forthcoming BICEP2 and Keck observations.

Affiliated with

Also associated with

No associations

Rating

Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP 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 Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-658306