A search for the Sunyaev-Zel'dovich effect at millimeter wavelengths

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

20

Background Radiation, Cosmic Plasma, Electron Scattering, Light Scattering, Photons, Energy Transfer, Galactic Clusters, High Temperature Plasmas, Millimeter Waves, Radio Sources (Astronomy)

Scientific paper

It is believed that X-ray emission from clusters of galaxies represents thermal bremsstrahlung from a hot plasma. According to Sunyaev and Zel'dovich (1972), the plasma column density and temperature derived from this model imply a measurable distortion of the cosmic background radiation (CBR) in the cluster direction. This distortion results from the Compton scattering of the CBR photons by the electrons in the plasma, resulting in an average increase of each photon. This process, known as the Sunyaev-Zel'dovich effect, is photon conserving and 'shifts' the CBR spectrum to higher frequencies. The result is a decrease of flux at frequencies below 7.5 per cm (the Rayleigh-Jeans region), and an increase above. The investigation is concerned with measurements of the Sunyaev-Zel'dovich effect at frequencies in the range from 3 to 10 per cm. Attention is given to the employed observing and analysis technique, and an initial null result for the cluster Abell 1795.

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

A search for the Sunyaev-Zel'dovich effect at millimeter wavelengths 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 search for the Sunyaev-Zel'dovich effect at millimeter wavelengths, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A search for the Sunyaev-Zel'dovich effect at millimeter wavelengths will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-741692

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