Planck intermediate results: VI. The dynamical structure of PLCKG214.6+37.0, a Planck discovered triple system of galaxy clusters

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[1] Ade, P.A.R.
[2] Aghanim, N.
[3] Arnaud, M.
[4] 7,Ashdown, M.
[5] Atrio-Barandela, F.
[6] Aumont, J.
[7] Baccigalupi, C.
[8] Balbi, A.
[9] 10,Banday, A.J.
[10] Barreiro, R.B.
[11] 1,Bartlett, J.G.
[12] Battaner, E.
[13] 61,Benabed, K.
[14] Benoît, A.
[15] Bernard, J.-P.
[16] 36,Bersanelli, M.
[17] Bhatia, R.
[18] 3,Bikmaev, I.
[19] Böhringer, H.
[20] Bonaldi, A.
[21] Bond, J.R.
[22] 15,Borrill, J.
[23] 61,Bouchet, F.R.
[24] Bourdin, H.
[25] Burenin, R.
[26] 34,Burigana, C.
[27] Cabella, P.
[28] 1,61,Cardoso, J.-F.
[29] Castex, G.
[30] 74,Catalano, A.
[31] Cayón, L.
[32] Chamballu, A.
[33] Chiang, L.-Y.
[34] Chon, G.
[35] 40,Christensen, P.R.
[36] Clements, D.L.
[37] Colafrancesco, S.
[38] 61,Colombi, S.
[39] 25,Colombo, L.P.L.
[40] Comis, B.
[41] Coulais, A.
[42] 69,Crill, B.P.
[43] Cuttaia, F.
[44] Da Silva, A.
[45] 12,Dahle, H.
[46] Danese, L.
[47] Davis, R.J.
[48] De Bernardis, P.
[49] De Gasperis, G.
[50] 47,De Zotti, G.
来源：
Rossetti, M. (mariachiara.rossetti@unimi.it) | 1600年 / EDP Sciences卷 / 550期
关键词：
The survey of galaxy clusters performed by Planck through the Sunyaev-Zeldovich effect has already discovered many interesting objects; thanks to its full sky coverage. One of the SZ candidates detected inthe early months of the mission near to the signal-to-noise threshold; PLCKG214.6+37.0; was later revealed by XMM-Newton to be a triple system of galaxy clusters. We present the results from a deep XMM-Newton re-observation of PLCKG214.6+37.0; part of a multi-wavelength programme to investigate Planck discovered superclusters. The characterisation of the physical properties of the three components has allowed us to build a template model to extract the total SZ signal of this system with Planck data. We have partly reconciled the discrepancy between the expected SZ signal derived from X-rays and the observed one; which are now consistent within 1.2σ. We measured the redshift of the three components with the iron lines in the X-ray spectrum; and confirm that the three clumps are likely part of the same supercluster structure. The analysis of the dynamical state of the three components; as well as the absence of detectable excess X-ray emission; suggests that we are witnessing the formation of a massive cluster at an early phase of interaction. © ESO; 2013;
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  • [1] Planck intermediate results VI. The dynamical structure of PLCKG214.6+37.0, a Planck discovered triple system of galaxy clusters
    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.
    Chiang, L. -Y
    Chon, G.
    Christensen, P. R.
    Clements, D. L.
    Colafrancesco, S.
    Colombi, 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.
    ASTRONOMY & ASTROPHYSICS, 2013, 550
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    Ashdown, M.
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