MITO measurements of the Sunyaev-Zeldovich Effect in the Coma cluster of galaxies

Details MITO measurements of the Sunyaev-Zeldovich Effect in the Coma cluster of galaxies MITO measurements of the Sunyaev-Zeldovich Effect in the Coma cluster of galaxies

2002-03-19

arxiv.org/abs/astro-ph/0203303v2

Astrophys.J.574:L119-L122,2002

Astronomy and Astrophysics

Astrophysics

Ap.J.Letters accepted, 4 pages, 2 figures

Scientific paper

10.1086/342418

We have measured the Sunyaev-Zeldovich effect towards the Coma cluster (A1656) with the MITO experiment, a 2.6-m telescope equipped with a 4-channel 17 arcminute (FWHM) photometer. Measurements at frequency bands 143+/-15, 214+/-15, 272+/-16 and 353+/-13 GHz, were made during 120 drift scans of Coma. We describe the observations and data analysis that involved extraction of the S-Z signal by employing a spatial and spectral de-correlation scheme to remove a dominant atmospheric component. The deduced values of the thermal S-Z effect in the first three bands are DT_{0} = -179+/-38,-33+/-81,170+/-35 microKelvin in the cluster center. The corresponding optical depth, tau=(4.1+/-0.9) 10^{-3}, is consistent (within errors) with both the value from a previous low frequency S-Z measurement, and the value predicted from the X-ray deduced gas parameters.

Affiliated with

Also associated with

No associations

Rating

MITO measurements of the Sunyaev-Zeldovich Effect in the Coma cluster of galaxies 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 MITO measurements of the Sunyaev-Zeldovich Effect in the Coma cluster of galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MITO measurements of the Sunyaev-Zeldovich Effect in the Coma cluster of galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-620546