SIMBAD references

2002MNRAS.337.1207G - Mon. Not. R. Astron. Soc., 337, 1207-1214 (2002/December-3)

A maximum-likelihood approach to removing radio sources from observations of the Sunyaev-Zel'dovich effect, with application to Abell 611.

GRAINGER W.F., DAS R., GRAINGE K., JONES M.E., KNEISSL R., POOLEY G.G. and SAUNDERS R.D.E.

Abstract (from CDS):

We describe a maximum-likelihood technique for the removal of contaminating radio sources from interferometric observations of the Sunyaev-Zel'dovich (SZ) effect. This technique, based on a simultaneous fit for the radio sources and extended SZ emission, is also compared to techniques previously applied to Ryle Telescope observations and is found to be robust. The technique is then applied to new observations of the cluster Abell 611, and a decrement of -540±125 µJy beam –1 is found. This is combined with a ROSAT HRI image and a published ASCA temperature to give an H0estimate of 52+24 –16km/s/Mpc.

Abstract Copyright: RAS

Journal keyword(s): methods: data analysis - galaxies: clusters: individual: Abell 611 - cosmic microwave background - cosmology: observations - distance scale - X-rays: galaxies: clusters

Simbad objects: 3

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