Synchrotron Emission from the Galaxy

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

6 pages, LaTeX, 1 figure. To appear in "Fundamental Parameters in Cosmology", proceedings of the Rencontres de Moriond 1998

Scientific paper

Galactic synchrotron emission is a potentially confusing foreground, both in total power and in polarization, to the Cosmic Microwave Background Radiation. It also contains much physical information in its own right. This review examines the amplitude, angular power spectrum and frequency spectrum of the synchrotron emission as derived from the presently available de-striped maps. There are as yet no maps at arcminute resolution at frequencies above 2.4 GHz. This incomplete information is supplemented with data from supernovae, which are thought to be the progenitors of the loops and spurs found in the Galactic emission. The possible variations of the frequency spectral index from pixel to pixel are highlighted. The relative contributions of free-free and synchrotron radiation are compared, and it is concluded that the free-free contribution may be smaller than had been predicted by COBE. New high resolution polarization surveys of the Galactic plane suggest detail on all scales so far observed. At high latitudes the large percentage polarisation means that the foreground contamination of the polarised CMB signal will be more serious than for the unpolarized radiation.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Synchrotron Emission from the Galaxy 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 Synchrotron Emission from the Galaxy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchrotron Emission from the Galaxy will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-130385

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.