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

被引：8

作者：

Grainger, WF ^{[1
]}

Das, R ^{[1
]}

Grainge, K ^{[1
]}

Jones, ME ^{[1
]}

Kneissl, R ^{[1
]}

Pooley, GG ^{[1
]}

Saunders, RDE ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2002年 / 337卷 / 04期

关键词：

methods : data analysis; galaxies : clusters : individual : Abell 611; cosmic microwave background; cosmology : observations; distance scale; X-rays : galaxies : clusters;

D O I：

10.1046/j.1365-8711.2002.05815.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 muJy beam(-1) is found. This is combined with a ROSAT HRI image and a published ASCA temperature to give an H-0 estimate of 52(-16)(+24) km s(-1) Mpc(-1).

引用

页码：1207 / 1214

页数：8

共 21 条

[1] THE DISTRIBUTION OF RICH CLUSTERS OF GALAXIES [J].

ABELL, GO .

ASTRONOMICAL JOURNAL, 1957, 62 (01) :2-2

[2]

[Anonymous], ASP C SER

[3] The ROSAT point spread functions and associates [J].

Boese, FG .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 2000, 141 (03) :507-521

[4] The northern ROSAT All-Sky (NORAS) galaxy cluster survey.: I.: X-ray properties of clusters detected as extended X-ray sources [J].

Böhringer, H ;

Voges, W ;

Huchra, JP ;

McLean, B ;

Giacconi, R ;

Rosati, P ;

Burg, R ;

Mader, J ;

Schuecker, P ;

Simiç, D ;

Komossa, S ;

Reiprich, TH ;

Retzlaff, J ;

Trümper, J .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2000, 129 (02) :435-474

[5] Radio sources in galaxy clusters at 28.5 GHz [J].

Cooray, AR ;

Grego, L ;

Holzapfel, WL ;

Joy, M ;

Carlstrom, JE .

ASTRONOMICAL JOURNAL, 1998, 115 (04) :1388-1399

[6] OPTICAL SPECTROSCOPY OF THE ROSAT X-RAY BRIGHTEST CLUSTERS .2. [J].

CRAWFORD, CS ;

EDGE, AC ;

FABIAN, AC ;

ALLEN, SW ;

BOHRINGER, H ;

EBELING, H ;

MCMAHON, RG ;

VOGES, W .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1995, 274 (01) :75-84

[7]

DAS R, 1999, THESIS CAMBRIDGE U

[8] Measuring the Hubble constant from Ryle Telescope and X-ray observations, with application to Abell 1413 [J].

Grainge, K ;

Jones, ME ;

Pooley, G ;

Saunders, R ;

Edge, A ;

Grainger, WF ;

Kneissl, R .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2002, 333 (02) :318-326

[9] Mapping of the Sunyaev-Zel'dovich effect in the cluster Cl 0016+6 with the Ryle Telescope [J].

Grainge, K ;

Grainger, WF ;

Jones, ME ;

Kneissl, R ;

Pooley, GG ;

Saunders, R .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2002, 329 (04) :890-896

[10]

Grainge K., 1996, THESIS CAMBRIDGE U

← 1 2 3 →