A Limit on the Polarized Anomalous Microwave Emission of Lynds 1622

Details A Limit on the Polarized Anomalous Microwave Emission of Lynds 1622 A Limit on the Polarized Anomalous Microwave Emission of Lynds 1622

2009-01-02

arxiv.org/abs/0901.0133v2

Astrophys.J.697:1187-1193,2009

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

replaced with version accepted by ApJ

Scientific paper

10.1088/0004-637X/697/2/1187

The dark cloud Lynds 1622 is one of a few specific sites in the Galaxy where, relative to observed free-free and vibrational dust emission, there is a clear excess of microwave emission. In order to constrain models for this microwave emission, and to better establish the contribution which it might make to ongoing and near-future microwave background polarization experiments, we have used the Green Bank Telescope to search for linear polarization at 9.65 Ghz towards Lynds 1622. We place a 95.4% upper limit of 88 micro-Kelvin (123 micro-Kelvin at 99.7 confidence) on the total linear polarization of this source averaged over a 1'.3 FWHM beam. Relative to the observed level of anomalous emission in Stokes I these limits correspond to fractional linear polarizations of 2.7% and 3.5%.

Affiliated with

Also associated with

No associations

Rating

A Limit on the Polarized Anomalous Microwave Emission of Lynds 1622 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 A Limit on the Polarized Anomalous Microwave Emission of Lynds 1622, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Limit on the Polarized Anomalous Microwave Emission of Lynds 1622 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-380639