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@article{Ade:2016:0004-6361/201527743,
author = {Ade, PAR and Aghanim, N and Arnaud, M and Ashdown, M and Aumont, J and Baccigalupi, C and Banday, AJ and Barreiro, RB and Bartolo, N and Battaner, E and Benabed, K and Benoit-Levy, A and Bernard, J-P and Bersanelli, M and Bielewicz, P and Bonaldi, A and Bonavera, L and Bond, JR and Borrill, J and Bouchet, FR and Burigana, C and Butler, RC and Calabrese, E and Cardoso, J-F and Catalano, A and Chamballu, A and Chiang, HC and Christensen, PR and Churazov, E and Clements, DL and Colombo, LPL and Combet, C and Comis, B and Couchot, F and Coulais, A and Crill, BP and Curto, A and Cuttaia, F and Danese, L and Davies, RD and Davis, RJ and de, Bernardis P and de, Rosa A and de, Zotti G and Delabrouille, J and Dickinson, C and Diego, JM and Dolag, K and Dole, H and Donzelli, S and Dore, O and Douspis, M and Ducout, A and Dupac, X and Efstathiou, G and Elsner, F and Ensslin, TA and Eriksen, HK and Finelli, F and Forni, O and Frailis, M and Fraisse, AA and Franceschi, E and Galeotta, S and Galli, },
doi = {0004-6361/201527743},
journal = {Astronomy and Astrophysics},
title = {Planck intermediate results XL. The Sunyaev-Zeldovich signal from the Virgo cluster},
url = {http://dx.doi.org/10.1051/0004-6361/201527743},
volume = {596},
year = {2016}
}

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TY  - JOUR
AB  - The Virgo cluster is the largest Sunyaev-Zeldovich (SZ) source in the sky, both in terms of angular size and total integrated flux. Planck’s wide angular scale and frequency coverage, together with its high sensitivity, enable a detailed study of this big object through the SZ effect. Virgo is well resolved by Planck, showing an elongated structure that correlates well with the morphology observed from X-rays, but extends beyond the observed X-ray signal. We find good agreement between the SZ signal (or Compton parameter, yc) observed by Planck and the expected signal inferred from X-ray observations and simple analytical models. Owing to its proximity to us, the gas beyond the virial radius in Virgo can be studied with unprecedented sensitivity by integrating the SZ signal over tens of square degrees. We study the signal in the outskirts of Virgo and compare it with analytical models and a constrained simulation of the environment of Virgo. Planck data suggest that significant amounts of low-density plasma surround Virgo, out to twice the virial radius. We find the SZ signal in the outskirts of Virgo to be consistent with a simple model that extrapolates the inferred pressure at lower radii, while assuming that the temperature stays in the keV range beyond the virial radius. The observed signal is also consistent with simulations and points to a shallow pressure profile in the outskirts of the cluster. This reservoir of gas at large radii can be linked with the hottest phase of the elusivewarm/hot intergalactic medium. Taking the lack of symmetry of Virgo into account, we find that a prolate model is favoured by the combination of SZ and X-ray data, in agreement with predictions. Finally, based on the combination of the same SZ and X-ray data, we constrain the total amount of gas in Virgo. Under the hypothesis that the abundance of baryons in Virgo is representative of the cosmic average, we also infer a distance for Virgo of approximately 18 Mpc, in g
AU  - Ade,PAR
AU  - Aghanim,N
AU  - Arnaud,M
AU  - Ashdown,M
AU  - Aumont,J
AU  - Baccigalupi,C
AU  - Banday,AJ
AU  - Barreiro,RB
AU  - Bartolo,N
AU  - Battaner,E
AU  - Benabed,K
AU  - Benoit-Levy,A
AU  - Bernard,J-P
AU  - Bersanelli,M
AU  - Bielewicz,P
AU  - Bonaldi,A
AU  - Bonavera,L
AU  - Bond,JR
AU  - Borrill,J
AU  - Bouchet,FR
AU  - Burigana,C
AU  - Butler,RC
AU  - Calabrese,E
AU  - Cardoso,J-F
AU  - Catalano,A
AU  - Chamballu,A
AU  - Chiang,HC
AU  - Christensen,PR
AU  - Churazov,E
AU  - Clements,DL
AU  - Colombo,LPL
AU  - Combet,C
AU  - Comis,B
AU  - Couchot,F
AU  - Coulais,A
AU  - Crill,BP
AU  - Curto,A
AU  - Cuttaia,F
AU  - Danese,L
AU  - Davies,RD
AU  - Davis,RJ
AU  - de,Bernardis P
AU  - de,Rosa A
AU  - de,Zotti G
AU  - Delabrouille,J
AU  - Dickinson,C
AU  - Diego,JM
AU  - Dolag,K
AU  - Dole,H
AU  - Donzelli,S
AU  - Dore,O
AU  - Douspis,M
AU  - Ducout,A
AU  - Dupac,X
AU  - Efstathiou,G
AU  - Elsner,F
AU  - Ensslin,TA
AU  - Eriksen,HK
AU  - Finelli,F
AU  - Forni,O
AU  - Frailis,M
AU  - Fraisse,AA
AU  - Franceschi,E
AU  - Galeotta,S
AU  - Galli,S
AU  - Gangal,K
AU  - Giard,M
AU  - Giraud-Heraud,Y
AU  - Gjerlow,E
AU  - Gonzalez-Nuevo,J
AU  - Gorski,KM
AU  - Gregorio,A
AU  - Gruppuso,A
AU  - Gudmundsson,JE
AU  - Hansen,FK
AU  - Harrison,DL
AU  - Helou,G
AU  - Hernandez-Monteagudo,C
AU  - Herranz,D
AU  - Hildebrandt,SR
AU  - Hivon,E
AU  - Hobson,M
AU  - Hornstrup,A
AU  - Hovest,W
AU  - Huffenberger,KM
AU  - Hurier,G
AU  - Jaffe,AH
AU  - Jaffe,TR
AU  - Jones,WC
AU  - Keihanen,E
AU  - Keskitalo,R
AU  - Kisner,TS
AU  - Kneissl,R
AU  - Knoche,J
AU  - Kunz,M
AU  - Kurki-Suonio,H
AU  - Lagache,G
AU  - Lamarre,J-M
AU  - Lasenby,A
AU  - Lattanzi,M
AU  - Lawrence,CR
AU  - Leonardi,R
AU  - Levrier,F
AU  - Liguori,M
AU  - Lilje,PB
AU  - Linden-Vornle,M
AU  - Lopez-Caniego,M
AU  - Lubin,PM
AU  - Macias-Perez,JF
AU  - Maffei,B
AU  - Maggio,G
AU  - Maino,D
AU  - Mandolesi,N
AU  - Mangilli,A
AU  - Marcos-Caballero,A
AU  - Maris,M
AU  - Martin,PG
AU  - Martinez-Gonzalez,E
AU  - Masi,S
AU  - Matarrese,S
AU  - Mazzotta,P
AU  - Meinhold,PR
AU  - Melchiorri,A
AU  - Mennella,A
AU  - Migliaccio,M
AU  - Mitra,S
AU  - Miville-Deschenes,M-A
AU  - Moneti,A
AU  - Montier,L
AU  - Morgante,G
AU  - Mortlock,D
AU  - Munshi,D
AU  - Murphy,JA
AU  - Naselsky,P
AU  - Nati,F
AU  - Natoli,P
AU  - Noviello,F
AU  - Novikov,D
AU  - Novikov,I
AU  - Oppermann,N
AU  - Oxborrow,CA
AU  - Pagano,L
AU  - Pajot,F
AU  - Paoletti,D
AU  - Pasian,F
AU  - Pearson,TJ
AU  - Perdereau,O
AU  - Perotto,L
AU  - Pettorino,V
AU  - Piacentini,F
AU  - Piat,M
AU  - Pierpaoli,E
AU  - Plaszczynski,S
AU  - Pointecouteau,E
AU  - Polenta,G
AU  - Ponthieu,N
AU  - Pratt,GW
AU  - Prunet,S
AU  - Puget,J-L
AU  - Rachen,JP
AU  - Reinecke,M
AU  - Remazeilles,M
AU  - Renault,C
AU  - Renzi,A
AU  - Ristorcelli,I
AU  - Rocha,G
AU  - Rosset,C
AU  - Rossetti,M
AU  - Roud
DO  - 0004-6361/201527743
PY  - 2016///
SN  - 0004-6361
TI  - Planck intermediate results XL. The Sunyaev-Zeldovich signal from the Virgo cluster
T2  - Astronomy and Astrophysics
UR  - http://dx.doi.org/10.1051/0004-6361/201527743
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000390797900009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/60006
VL  - 596
ER  -

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