A pan-chromatic view of the galaxy cluster XMMU J1230.3+1339 at z = 0.975 - Observing the assembly of a massive system
A pan-chromatic view of the galaxy cluster XMMU J1230.3+1339 at z = 0.975 - Observing the assembly of a massive system
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星系团 XMMU J1230 3 1339 在 z = 0 975 处的全色视图 - 观察大规模系统的组装
DOI:
10.1051/0004-6361/201015204
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发表时间:
2011
影响因子:
6.5
通讯作者:
Nastasi
中科院分区:
文献类型:
--
作者:
Fassbender;Böhringer;Santos;Šuhada;Kohnert;Lerchster;Rovilos;Pierini;Schwope;Mühlegger;Rosati;Quintana;Nastasi
ContextObservations of the formation and evolution of massive galaxy clusters and their matter components provide crucial constraints on cosmic structure formation, the thermal history of the intracluster medium (ICM), galaxy evolution, transformation processes, and gravitational and hydrodynamic interaction physics of the subcomponents.AimsWe characterize the global multi-wavelength properties of the X-ray selected galaxy cluster XMMU J1230.3+1339 atz= 0.975, a new system discovered within the XMM-NewtonDistant Cluster Project (XDCP). We measure and compare various widely used mass proxies and identify multiple cluster-associated components from the inner core region out to the large-scale structure environment.MethodsWe present a comprehensive galaxy cluster study based on a joint analysis of X-ray data, optical imaging and spectroscopy observations, weak lensing results, and radio properties for achieving a detailed multi-component view on a system atz~ 1.ResultsWe find an optically very rich and massive system withM200≃ (4.2 ± 0.8) × 1014M⊙, \hbox{} keV, and \hbox{} × 1044erg s-1. We have identified a central fly-through group close to core passage and find marginally extended 1.4 GHz radio emission possibly associated with the turbulent wake region of the merging event. On the cluster outskirts we see evidence for an on-axis infalling group with a second brightest cluster galaxy (BCG) and indications for an additional off-axis group accretion event. We trace two galaxy filaments beyond the nominal cluster radius and provide a tentative reconstruction of the 3D-accretion geometry of the system.ConclusionsIn terms of total mass, ICM structure, optical richness, and the presence of two dominant BCG-type galaxies, the newly confirmed cluster XMMU J1230.3+1339 is likely the progenitor of a system very similar to the local Coma cluster, differing by 7.6 Gyr of structure evolution. This new system is an ideally suited astrophysical model laboratory for in-depth follow-up studies on the aggregation of baryons in the cold and hot phases.
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DOI:
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发表时间:
2007
期刊:
--
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1088/0004-637x/701/2/l114
发表时间:
2009
期刊:
The Astrophysical Journal
影响因子:
--
作者:
D. Marrone;Graham P. Smith;J. Richard;M. Joy;M. Bonamente;N. Hasler;V. Hamilton;J. Kneib;T. Culverhouse;J. Carlstrom;C. Greer;D. Hawkins;R. Hennessy;J. Lamb;E. Leitch;M. Loh;Amber D. Miller;T. Mroczkowski;S. Muchovej;C. Pryke;M. Sharp;D. Woody
通讯作者:
D. Woody
影响因子:
2.6
作者:
G. Voit
通讯作者:
G. Voit
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
M. Pierre;F. Pacaud;P. Duc;J. Willis;S. Andreon;I. Valtchanov;B. Altieri;G. Galaz;A. Gueguen;J. Fèvre;O. Fèvre;T. Ponman;P. Sprimont;J. Surdej;C. Adami;A. Alshino;M. Bremer;L. Chiappetti;A. Detal;O. Garcet;E. Gosset;C. Jean;D. Maccagni;C. Marinoni;A. Mazure;H. Quintana;A. Read
通讯作者:
A. Read
DOI:
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发表时间:
2003
期刊:
影响因子:
--
作者:
P. Tozzi;P. Rosati;S. Ettori;S. Borgani;V. Mainieri;C. Norman
通讯作者:
C. Norman