AAS 197, January 2001
Session 17. Frontiers of Astrophysics IV
Display, Monday, January 8, 2001, 9:30am-7:00pm, Exhibit Hall

[Previous] | [Session 17] | [Next]

[17.08] Observations of Polarization in the Cosmic Microwave Background: A Progress Report for the POLAR Experiment

C. O'Dell (Univ. of Wisconsin-Madison), B. Keating (California Institute of Technology), P. Timbie (Univ. of Wisconsin-Madison)

While the temperature anisotropy power spectrum of the Cosmic Microwave Background (CMB) is being measured with ever-increasing accuracy, polarization in the CMB has yet to be seen. The CMB is expected to be polarized at a low level due to Thomson scattering at the time of recombination. CMB polarization encodes a wealth of information separate from that of temperature anisotropy, and is particularly sensitive to the duration of recombination as well as the redshift of reionization. In addition, a CMB polarization experiment can characterize the polarization of galactic foregrounds such as synchrotron radiation and dust emission.

The POLAR experiment is a ground-based correlation radiometer designed to see CMB polarization in the Ka-band (26-36 GHz) at large angular scales. In this paper, we will describe the POLAR experiment and report on recent observations made from Madison, Wisconsin in the spring of 2000.

If you would like more information about this abstract, please follow the link to http://cmb.physics.wisc.edu/polar. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: odell@cmb.physics.wisc.edu

[Previous] | [Session 17] | [Next]