2006MNRAS.369L...1A

Query : 2006MNRAS.369L...1A

2006MNRAS.369L...1A - Mon. Not. R. Astron. Soc., 369, L1-L4 (2006/June-2)

High-significance Sunyaev-Zel'dovich measurement: Abell 1914 seen with the Arcminute Microkelvin Imager.

AMI COLLABORATION, BARKER R., BIDDULPH P., BLY D., BOYSEN R., BROWN A., CLEMENTSON C., CROFTS M., CULVERHOUSE T., CZERES J., DACE R., D'ALESSANDRO R., DOHERTY P., DUFFETT-SMITH P., DUGGAN K., ELY J., FELVUS M., FLYNN W., GEISBUSCH J., GRAINGE K., GRAINGER W., HAMMET D., HILLS R., HOBSON M., HOLLER C., JILLEY R., JONES M.E., KANEKO T., KNEISSL R., LANCASTER K., LASENBY A., MARSHALL P., NEWTON F., NORRIS O., NORTHROP I., POOLEY G., QUY V., SAUNDERS R.D.E., SCAIFE A., SCHOFIELD J., SCOTT P., SHAW C., TAYLOR A.C., TITTERINGTON D., VELIC M., WALDRAM E., WEST S., WOOD B., YASSIN G. and ZWART J.

Abstract (from CDS):

We report the first detection of a Sunyaev-Zel'dovich (S-Z) decrement using the Arcminute Microkelvin Imager (AMI). We have made commissioning observations towards the cluster of galaxies A1914 and detected the S-Z effect with a significance of 17σ in a uv-tapered map at a mean frequency of 15.75 GHz. The integrated S-Z flux density of -8.6±0.5 mJy is consistent with a simple X-ray derived model for the intracluster gas. We find that the spectrum of the decrement, measured in the six channels between 13.5-18 GHz, fits well to that expected for the S-Z effect. The sensitivity of the telescope is consistent with the figures used in our simulations of cluster surveys with AMI.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): galaxies: clusters: individual: A1914 - cosmic microwave background

Nomenclature: Table 1, Fig.4: [ABB2006] A (Nos A-R).

Simbad objects: 20

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Number of rows : 20
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
2 [ABB2006] M Rad 14 24 18.00 +37 56 18.0           ~ 1 0
3 [ABB2006] L Rad 14 25 06.40 +37 53 50.0           ~ 1 0
4 [ABB2006] B Rad 14 25 40.70 +37 45 46.4           ~ 1 0
5 [BGB2013] 73 rG 14 25 47.7928384228 +37 47 47.975421099           ~ 4 0
6 [ABB2006] E Rad 14 25 48.00 +37 41 51.0           ~ 1 0
7 [ABB2006] F Rad 14 25 49.50 +37 34 06.0           ~ 1 0
8 [ABB2006] C Rad 14 25 50.80 +37 44 51.0           ~ 1 0
9 [ABB2006] R Rad 14 25 52.60 +37 52 49.0           ~ 1 0
10 [ABB2006] K Rad 14 25 53.30 +38 02 51.0           ~ 1 0
11 [ABB2006] P Rad 14 25 54.00 +37 48 13.1           ~ 1 0
12 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
13 [ABB2006] D Rad 14 25 58.40 +37 43 51.0           ~ 1 0
14 [ABB2006] N Rad 14 26 06.00 +37 53 21.0           ~ 1 0
15 [ABB2006] Q Rad 14 26 06.50 +37 50 41.6           ~ 1 0
16 [ABB2006] A Rad 14 26 18.60 +37 45 51.0           ~ 1 0
17 [ABB2006] J Rad 14 26 49.10 +37 55 50.2           ~ 1 0
18 [ABB2006] H Rad 14 26 50.20 +37 48 35.0           ~ 1 0
19 [ABB2006] I Rad 14 27 10.53 +37 55 14.0           ~ 1 0
20 [ABB2006] G Rad 14 27 24.82 +37 46 33.1           ~ 1 0

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