2007MNRAS.378..673L

Query : 2007MNRAS.378..673L

2007MNRAS.378..673L - Mon. Not. R. Astron. Soc., 378, 673-680 (2007/June-3)

Preliminary Sunyaev-Zel'dovich observations of galaxy clusters with OCRA-p.

LANCASTER K., BIRKINSHAW M., GAWRONSKI M.P., BROWNE I., FEILER R., KUS A., LOWE S., PAZDERSKI E. and WILKINSON P.

Abstract (from CDS):

We present 30-GHz Sunyaev-Zel'dovich (SZ) observations of a sample of four galaxy clusters with a prototype of the One Centimetre Receiver Array (OCRA-p) which is mounted on the Torun 32-m telescope. The clusters (Cl0016+16, MS0451.6-0305, MS1054.4-0321 and Abell 2218) are popular SZ targets and serve as commissioning observations. All four are detected with clear significance (4 -6σ) and values for the central temperature decrement are in good agreement with measurements reported in the literature. We believe that systematic effects are successfully suppressed by our observing strategy. The relatively short integration times required to obtain these results demonstrate the power of OCRA-p and its successors for future SZ studies.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): galaxies: clusters: individual: Cl0016+16 - galaxies: clusters: individual: MS0451.6-0305 - galaxies: clusters: individual: MS1054.4-0321 - galaxies: clusters: individual: A2218 - cosmic microwave background - cosmology: observations

Nomenclature: Table 3, Fig.1: [LBG2007] MS 0451.6-0305 N (Nos 1-2), [LBG2007] MS 1054.4-0321 N (Nos 1-4), [LBG2007] ACO 2218 N (Nos 1-3).

Simbad objects: 15

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Number of rows : 15
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 ClG 0016+16 ClG 00 18 33.3 +16 26 36           ~ 517 0
2 ClG 0451-03 ClG 04 54 10.9 -03 01 07     20.0     ~ 368 0
3 NVSS J045422-030123 Rad 04 54 22.05 -03 01 23.9           ~ 3 1
4 NVSS J045430-030044 Rad 04 54 30.67 -03 00 39.8           ~ 2 1
5 [BVF2002] C20 rG 10 56 48.59 -03 40 07.2           ~ 2 0
6 CXOMP J105648.9-033725 rG 10 56 48.8712858984 -03 37 25.905719136   18.678   18.539   ~ 10 0
7 [BVF2002] C8 G 10 56 57.93 -03 38 58.0           ~ 2 0
8 [BVF2002] C1 GiC 10 56 59.66 -03 37 27.8           ~ 12 0
9 ClG 1054-03 ClG 10 57 00.2 -03 37 27     22     ~ 458 0
10 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
11 [LBG2007] ACO 2218 1 Rad 16 35 21.976 +66 13 19.71           ~ 6 0
12 NVSS J163546+661447 rG 16 35 47.3321206104 +66 14 44.487530016   20.105 18.517     ~ 16 0
13 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 827 1
14 Z 320-33 GiC 16 36 15.3699244272 +66 14 24.139733064   14.98       ~ 28 0
15 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2541 1

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