Planck 中期结果 IV：新 Planck 星系团候选体的 XMM-Newton 验证计划
宇宙学与河外天体物理
2016-08-14 v3
摘要
我们展示了针对新 Planck 星系团候选体的 XMM-Newton 验证跟踪观测的最终结果。我们在 15.5 个月的 Planck 名义巡天中观测了 15 个新候选体，其信噪比介于 4.0 到 6.1 之间。候选体的选择利用了源自 ROSAT 全天巡天（RASS）和数字化全天巡天图的辅助数据标记，旨在深入低 SZ 流量、高红移区域，并测试 RASS 标记作为候选体可靠性指标的有效性。XMM 探测到了 14 个新星系团，其中包括 2 个双重系统。红移范围在 0.2 到 0.9 之间，其中 6 个星系团位于 z>0.5。估计的 M500 范围从 2.5 10^14 到 8 10^14 Msun。我们在完整的 XMM 验证计划背景下讨论我们的结果，该计划共探测到 51 个新星系团。其中包括 4 个双重系统和 2 个三重系统，其中一些是不同红移星系团在天空中的偶然投影。我们发现，与 RASS-BSC 源相关联是候选体可靠性的稳健指标，而与 FSC 源相关联并不能保证 SZ 候选体是真正的星系团。尽管如此，大多数 Planck 星系团出现在 RASS 图中，显著性大于 2 sigma 是候选体为真实星系团的良好指示。完整样本给出的 Planck 灵敏度阈值为 Y500 ~ 4 10^-4 arcmin^2，并表明在此水平以下的 YX-Y500 关系中存在 Malmquist 偏差。相应的质量阈值取决于 z。在 z > 0.5 时，M500 > 5 10^14 Msun 的系统很容易被 Planck 探测到。新探测到的星系团遵循从 X 射线选择样本导出的 YX-Y500 关系。与 X 射线选择的星系团相比，新星系团在其质量下的平均 X 射线光度较低。在 X 射线与 SZ 的标度性质方面，没有迹象表明偏离标准的自相似演化。（摘要删节）
引用
@article{arxiv.1205.3376,
title = {Planck Intermediate Results. IV. The XMM-Newton validation programme for new Planck galaxy clusters},
author = {Planck Collaboration and P. A. R. Ade and N. Aghanim and M. Arnaud and M. Ashdown and J. Aumont and C. Baccigalupi and A. Balbi and A. J. Banday and R. B. Barreiro and J. G. Bartlett and E. Battaner and K. Benabed and A. Benoît and J. -P. Bernard and M. Bersanelli and I. Bikmaev and H. Böhringer and A. Bonaldi and J. R. Bond and S. Borgani and J. Borrill and F. R. Bouchet and M. L. Brown and C. Burigana and R. C. Butler and P. Cabella and P. Carvalho and A. Catalano and L. Cayón and A. Chamballu and R. -R. Chary and L. -Y Chiang and G. Chon and P. R. Christensen and D. L. Clements and S. Colafrancesco and S. Colombi and A. Coulais and B. P. Crill and F. Cuttaia and A. Da Silva and H. Dahle and R. J. Davis and P. de Bernardis and G. de Gasperis and G. de Zotti and J. Delabrouille and J. Démoclès and F. -X. Désert and J. M. Diego and K. Dolag and H. Dole and S. Donzelli and O. Doré and M. Douspis and X. Dupac and T. A. Enßlin and H. K. Eriksen and F. Finelli and I. Flores-Cacho and O. Forni and M. Frailis and E. Franceschi and M. Frommert and S. Galeotta and K. Ganga and R. T. Génova-Santos and Y. Giraud-Héraud and J. González-Nuevo and R. González-Riestra and K. M. Górski and A. Gregorio and A. Gruppuso and F. K. Hansen and D. Harrison and A. Hempel and S. Henrot-Versillé and C. Hernández-Monteagudo and D. Herranz and S. R. Hildebrandt and E. Hivon and M. Hobson and W. A. Holmes and A. Hornstrup and W. Hovest and K. M. Huffenberger and G. Hurier and A. H. Jaffe and T. Jagemann and W. C. Jones and M. Juvela and R. Kneissl and J. Knoche and L. Knox and M. Kunz and H. Kurki-Suonio and G. Lagache and J. -M. Lamarre and A. Lasenby and C. R. Lawrence and M. Le Jeune and S. Leach and R. Leonardi and A. Liddle and P. B. Lilje and M. Linden-Vørnle and M. López-Caniego and G. Luzzi and J. F. Macías-Pérez and D. Maino and N. Mandolesi and R. Mann and M. Maris and F. Marleau and D. J. Marshall and E. Martínez-González and S. Masi and M. Massardi and S. Matarrese and P. Mazzotta and S. Mei and P. R. Meinhold and A. Melchiorri and J. -B. Melin and L. Mendes and A. Mennella and S. Mitra and M. -A. Miville-Deschênes and A. Moneti and G. Morgante and D. Mortlock and D. Munshi and P. Naselsky and F. Nati and P. Natoli and H. U. Nørgaard-Nielsen and F. Noviello and S. Osborne and F. Pajot and D. Paoletti and O. Perdereau and F. Perrotta and F. Piacentini and M. Piat and E. Pierpaoli and R. Piffaretti and S. Plaszczynski and P. Platania and E. Pointecouteau and G. Polenta and L. Popa and T. Poutanen and G. W. Pratt and S. Prunet and J. -L. Puget and M. Reinecke and M. Remazeilles and C. Renault and S. Ricciardi and G. Rocha and C. Rosset and M. Rossetti and J. A. Rubiño-Martín and B. Rusholme and M. Sandri and G. Savini and D. Scott and G. F. Smoot and A. Stanford and F. Stivoli and R. Sudiwala and R. Sunyaev and D. Sutton and A. -S. Suur-Uski and J. -F. Sygnet and J. A. Tauber and L. Terenzi and L. Toffolatti and M. Tomasi and M. Tristram and L. Valenziano and B. Van Tent and P. Vielva and F. Villa and N. Vittorio and L. A. Wade and B. D. Wandelt and N. Welikala and J. Weller and S. D. M. White and D. Yvon and A. Zacchei and A. Zonca},
journal= {arXiv preprint arXiv:1205.3376},
year = {2016}
}
备注
accepted by A&A