A1 Refereed original research article in a scientific journal
Planck intermediate results VI. The dynamical structure of PLCKG214.6+37.0, a Planck discovered triple system of galaxy clusters
Authors: Ade PAR, Aghanim N, Arnaud M, Ashdown M, Atrio-Barandela F, Aumont J, Baccigalupi C, Balbi A, Banday AJ, Barreiro RB, Bartlett JG, Battaner E, Benabed K, Benoit A, Bernard JP, Bersanelli M, Bhatia R, Bikmaev I, Bohringer H, Bonaldi A, Bond JR, Borrill J, Bouchet FR, Bourdin H, Burenin R, Burigana C, Cabella P, Cardoso JF, Castex G, Catalano A, Cayon L, Chamballu A, Chiang LY, Chon G, Christensen PR, Clements DL, Colafrancesco S, Colombi S, Colombo LPL, Comis B, Coulais A, Crill BP, Cuttaia F, Da Silva A, Dahle H, Danese L, Davis RJ, de Bernardis P, de Gasperis G, de Zotti G, Delabrouille J, Democles J, Diego JM, Dolag K, Dole H, Donzelli S, Dore O, Dorl U, Douspis M, Dupac X, Efstathiou G, Ensslin TA, Eriksen HK, Finelli F, Flores-Cacho I, Forni O, Frailis M, Franceschi E, Frommert M, Galeotta S, Ganga K, Genova-Santos RT, Giard M, Gilfanov M, Giraud-Heraud Y, Gonzalez-Nuevo J, Gorski KM, Gregorio A, Gruppuso A, Hansen FK, Harrison D, Heinamaki P, Hempel A, Henrot-Versille S, Hernandez-Monteagudo C, Herranz D, Hildebrandt SR, Hivon E, Hobson M, Holmes WA, Hurier G, Jaffe TR, Jaffe AH, Jagemann T, Jones WC, Juvela M, Keihanen E, Khamitov I, Kisner TS, Kneissl R, Knoche J, Knox L, Kunz M, Kurki-Suonio H, Lagache G, Lahteenmaki A, Lamarre JM, Lasenby A, Lawrence CR, Le Jeune M, Leonardi R, Lilje PB, Lopez-Caniego M, Luzzi G, Macias-Perez JF, Maino D, Mandolesi N, Maris M, Marleau F, Marshall DJ, Martinez-Gonzalez E, Masi S, Massardi M, Matarrese S, Mazzotta P, Mei S, Melchiorri A, Melin JB, Mendes L, Mennella A, Mitra S, Miville-Deschenes MA, Moneti A, Montier L, Morgante G, Mortlock D, Munshi D, Murphy JA, Naselsky P, Nati F, Natoli P, Norgaard-Nielsen HU, 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 GW, Prunet S, Puget JL, Rachen JP, Rebolo R, Reinecke M, Remazeilles M, Renault C, Ricciardi S, Riller T, Ristorcelli I, Rocha G, Roman M, Rosset C, Rossetti M, Rubino-Martin JA, Rusholme B, Sandri M, Savini G, Scott D, Smoot GF, Starck JL, Sudiwala R, Sunyaev R, Sutton D, Suur-Uski AS, Sygnet JF, Tauber JA, Terenzi L, Toffolatti L, Tomasi M, Tristram M, Tuovinen J, Valenziano L, Van Tent B, Vielva P, Villa F, Vittorio N, Wade LA, Wandelt BD, Welikala N, Yvon D, Zacchei A, Zaroubi S, Zonca A
Publisher: EDP SCIENCES S A
Publication year: 2013
Journal: Astronomy and Astrophysics
Journal name in source: ASTRONOMY & ASTROPHYSICS
Journal acronym: ASTRON ASTROPHYS
Article number: ARTN A132
Volume: 550
Number of pages: 14
ISSN: 0004-6361
DOI: https://doi.org/10.1051/0004-6361/201220039
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 in the 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 1.2 sigma. 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.
