2013A&A...550A.134P

Query : 2013A&A...550A.134P

2013A&A...550A.134P - Astronomy and Astrophysics, volume 550A, 134-134 (2013/2-1)

Planck intermediate results. VIII. Filaments between interacting clusters.

PLANCK COLLABORATION, ADE P.A.R., AGHANIM N., ARNAUD M., ASHDOWN M., ATRIO-BARANDELA F., AUMONT J., BACCIGALUPI C., BALBI A., BANDAY A.J., BARREIRO R.B., BARTLETT J.G., BATTANER E., BENABED K., BENOIT A., BERNARD J.-P., BERSANELLI M., BHATIA R., BIKMAEV I., BOEHRINGER H., BONALDI A., BOND J.R., BORRILL J., BOUCHET F.R., BOURDIN H., BURENIN R., BURIGANA C., CABELLA P., CARDOSO J.-F., CASTEX G., CATALANO A., CAYON L., CHAMBALLU A., CHARY R.-R., CHIANG L.-Y., CHON G., CHRISTENSEN P.R., CLEMENTS D.L., COLAFRANCESCO S., COLOMBO L.P.L., COMIS B., COULAIS A., CRILL B.P., CUTTAIA F., DA SILVA A., DAHLE H., DANESE L., DAVIS R.J., DE BERNARDIS P., DE GASPERIS G., DE ZOTTI G., DELABROUILLE J., DEMOCLES J., DESERT F.-X., DIEGO J.M., DOLAG K., DOLE H., DONZELLI S., DORE O., DOERL U., DOUSPIS M., DUPAC X., EFSTATHIOU G., ENSSLIN T.A., ERIKSEN H.K., FINELLI F., FLORES-CACHO I., FORNI O., FRAILIS M., FRANCESCHI E., FROMMERT M., GALEOTTA S., GANGA K., GENOVA-SANTOS R.T., GIARD M., GILFANOV M., GIRAUD-HERAUD Y., GONZALEZ-NUEVO J., GORSKI K.M., GREGORIO A., GRUPPUSO A., HANSEN F.K., HARRISON D., HEMPEL A., HENROT-VERSILLE S., HERNANDEZ-MONTEAGUDO C., HERRANZ D., HILDEBRANDT S.R., HIVON E., HOBSON M., HOLMES W.A., HOVEST W., HURIER G., JAFFE T.R., JAFFE A.H., JAGEMANN T., JONES W.C., JUVELA M., KHAMITOV I., KISNER T.S., KNEISSL R., KNOCHE J., KNOX L., KUNZ M., KURKI-SUONIO H., LAGACHE G., LAMARRE J.-M., LASENBY A., LAWRENCE C.R., LE JEUNE M., LEONARDI R., LILJE P.B., LINDEN-VORNLE M., LOPEZ-CANIEGO M., LUBIN P.M., LUZZI G., MACIAS-PEREZ J.F., MAFFEI B., MAINO D., MANDOLESI N., MARIS M., MARLEAU F., MARSHALL D.J., MARTINEZ-GONZALEZ E., MASI S., MASSARDI M., MATARRESE S., MATTHAI F., MAZZOTTA P., MEI S., MELCHIORRI A., MELIN J.-B., MENDES L., MENNELLA A., MITRA S., MIVILLE-DESCHENES M.-A., MONETI A., MONTIER L., MORGANTE G., MUNSHI D., MURPHY J.A., NASELSKY P., NATI F., NATOLI P., NORGAARD-NIELSEN H.U., NOVIELLO F., NOVIKOV D., NOVIKOV I., OSBORNE S., PAJOT F., PAOLETTI D., PASIAN F., PATANCHON G., PERDEREAU O., PEROTTO L., PERROTTA F., PIACENTINI F., PIAT M., PIERPAOLI E., PIFFARETTI R., PLASZCZYNSKI S., POINTECOUTEAU E., POLENTA G., PONTHIEU N., POPA L., POUTANEN T., PRATT G.W., PRUNET S., PUGET J.-L., RACHEN J.P., REBOLO R., REINECKE M., REMAZEILLES M., RENAULT C., RICCIARDI S., RILLER T., RISTORCELLI I., ROCHA G., ROMAN M., ROSSET C., ROSSETTI M., RUBINO-MARTIN J.A., RUSHOLME B., SANDRI M., SAVINI G., SCHAEFER B.M., SCOTT D., SMOOT G.F., STARCK J.-L., SUDIWALA R., SUNYAEV R., SUTTON D., SUUR-USKI A.-S., SYGNET J.-F., TAUBER J.A., TERENZI L., TOFFOLATTI L., TOMASI M., TRISTRAM M., VALENZIANO L., VAN TENT B., VIELVA P., VILLA F., VITTORIO N., WADE L.A., WANDELT B.D., WELIKALA N., WHITE S.D.M., YVON D., ZACCHEI A. and ZONCA A.

Abstract (from CDS):

About half of the baryons of the Universe are expected to be in the form of filaments of hot and low-density intergalactic medium. Most of these baryons remain undetected even by the most advanced X-ray observatories, which are limited in sensitivity to the diffuse low-density medium. The Planck satellite has provided hundreds of detections of the hot gas in clusters of galaxies via the thermal Sunyaev-Zel'dovich (tSZ) effect and is an ideal instrument for studying extended low-density media through the tSZ effect. In this paper we use the Planck data to search for signatures of a fraction of these missing baryons between pairs of galaxy clusters. Cluster pairs are good candidates for searching for the hotter and denser phase of the intergalactic medium (which is more easily observed through the SZ effect). Using an X-ray catalogue of clusters and the Planck data, we selected physical pairs of clusters as candidates. Using the Planck data, we constructed a local map of the tSZ effect centred on each pair of galaxy clusters. ROSAT data were used to construct X-ray maps of these pairs. After modelling and subtracting the tSZ effect and X-ray emission for each cluster in the pair, we studied the residuals on both the SZ and X-ray maps. For the merging cluster pair A399-A401 we observe a significant tSZ effect signal in the intercluster region beyond the virial radii of the clusters. A joint X-ray SZ analysis allows us to constrain the temperature and density of this intercluster medium. We obtain a temperature of kT=7.1±0.9keV (consistent with previous estimates) and a baryon density of (3.7±0.2)x10–4cm–3. The Planck satellite mission has provided the first SZ detection of the hot and diffuse intercluster gas.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: general - large-scale structure of Universe

CDS comments: Table 1 RXJ G304.324+31.534, PLCK 12.8+49.7, A 2384A, PLCK11.3+49.43 not found (incorrect format). ACO 3395E and ACO 3395SW are not in Simbad.

Simbad objects: 47

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Number of rows : 47
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ACO 21 ClG 00 20 38.75 +28 41 40.5           ~ 106 0
2 PSZ2 G114.90-34.35 GrG 00 21 24.6149 +28 03 01.550   17.8       ~ 22 0
3 ACO 209 ClG 01 31 52.9 -13 36 53           ~ 295 0
4 ACO 222 ClG 01 37 31.1 -12 59 30           ~ 140 1
5 ACO 223 ClG 01 37 55.9 -12 49 11           ~ 122 1
6 ACO 399 ClG 02 57 56.4 +13 00 59           ~ 396 0
7 ACO 401 ClG 02 58 56.9 +13 34 56           ~ 566 0
8 ACO 3391 ClG 06 26 15.4 -53 40 52           ~ 202 1
9 ACO 3395 ClG 06 27 31.1 -54 23 58           ~ 209 0
10 CIZA J0812.5-5714 ClG 08 12 30.3 -57 14 06           ~ 15 0
11 CIZA J0820.9-5704 ClG 08 20 59.6 -57 04 47           ~ 11 0
12 RBS 1175 ClG 12 52 34.93 -31 15 56.8           ~ 22 0
13 BAX 193.5900-29.0100 ClG 12 54 22.1 -29 00 46           ~ 38 0
14 BAX 193.6700-29.2254 ClG 12 54 40.6 -29 13 44           ~ 61 0
15 ACO 3530 ClG 12 55 36.0 -30 20 49           ~ 97 0
16 ACO 3532 ClG 12 57 19.2 -30 22 13           ~ 168 2
17 NAME SHAPLEY-CENTAURUS CL SCG 13 06.0 -33 04           ~ 607 0
18 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 442 2
19 ACO 1758 ClG 13 32 32.1 +50 30 37           ~ 251 2
20 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 314 1
21 MCXC J1359.5+6219 ClG 13 59 34.0 +62 19 01           ~ 11 0
22 ZwCl 1358+6245 ClG 13 59 54.3 +62 30 36     18.5     ~ 361 0
23 ACO 2029 ClG 15 10 56.2 +05 44 42           ~ 943 0
24 ACO 2033 ClG 15 11 23.50 +06 19 08.4           ~ 93 0
25 ACO 2061 ClG 15 21 19.90 +30 37 13.0           ~ 191 1
26 ACT-CL J1521.8+0742 ClG 15 21 55.14 +07 41 27.2     15.13     ~ 311 0
27 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 397 2
28 ACO 2067 ClG 15 23 14 +30 54.4           ~ 107 1
29 NAME Corona Borealis SCG 15 25 +29.5           ~ 135 0
30 ACO 2147 ClG 16 02 11.96 +15 55 11.5           ~ 403 0
31 ACO 2152 ClG 16 05 22.4 +16 26 55           ~ 159 0
32 ACO 2256 ClG 17 03 09.4 +78 39 36           ~ 885 1
33 ACO 2271 ClG 17 17 17.5 +78 01 00           ~ 69 0
34 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 117 0
35 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 255 0
36 NPM1G +30.0453 ClG 18 24 09.6 +30 29 31           ~ 14 0
37 CIZA J1825.3+3026 ClG 18 25 22.8 +30 26 32           ~ 49 0
38 ACO 3694 ClG 20 34 39.4 -34 04 39           ~ 27 0
39 ACO 3695 ClG 20 34 47.7 -35 49 39           ~ 86 2
40 RXC J2152.2-1942 ClG 21 52 14.2 -19 42 20           ~ 10 0
41 ACO 3854 ClG 22 17 45.72 -35 43 31.4           ~ 67 0
42 BAX 334.5845-03.8281 ClG 22 18 20.3 -03 49 41     16.0     ~ 28 1
43 BAX 334.7042-02.9686 ClG 22 18 54.01 -02 59 01.2           ~ 14 0
44 ACO 3866 ClG 22 20 29.9 -35 09 53           ~ 25 0
45 ACO 2440 ClG 22 23 52.6 -01 35 47           ~ 125 1
46 [FMV2006] A2572a ClG 23 17 13 +18 42.0           ~ 10 0
47 ACO 2572 ClG 23 18 31.2 +18 41 52           ~ 140 1

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