A resolved image of the Sunyaev-Zel'dovich effect in Abell 1413

Details A resolved image of the Sunyaev-Zel'dovich effect in Abell 1413 A resolved image of the Sunyaev-Zel'dovich effect in Abell 1413

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996mnras.278l..17g&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 278, Issue 1, pp. L17-L22.

Astronomy and Astrophysics

Astronomy

37

Radiative Transfer, Galaxies: Clusters: Individual: Abell 1413, Intergalactic Medium, Cosmic Microwave Background, X-Rays: General

Scientific paper

Following observations of the cluster Abell 1413 with the Ryle Telescope (RT) at 15 GHz, we report the detection of a resolved decrement in the cosmic microwave background arising from the Sunyaev-Zel'dovich (S-Z) effect with a significance of 8sigma. The position and shape of the S-Z decrement are in good agreement with the X-ray image from the ROSAT satellite. Because of the cluster ellipticity and the presence of a strong cooling flow, we defer H_0 estimation from A1413 until suitably sophisticated analysis methods are developed. We detail the tailoring of the east-west RT array carried out to optimize the observations of this low-declination cluster. We also describe our strategy for removing the contaminant sources in the field that are variable.

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