تقرير
A Multi-Wavelength Mass Analysis of RCS2 J232727.6-020437, a ~3x10$^{15}$M$_{\odot}$ Galaxy Cluster at z=0.7
| العنوان: | A Multi-Wavelength Mass Analysis of RCS2 J232727.6-020437, a ~3x10$^{15}$M$_{\odot}$ Galaxy Cluster at z=0.7 |
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| المؤلفون: | Sharon, K., Gladders, M. D., Marrone, D. P., Hoekstra, H., Rasia, E., Bourdin, H., Gifford, D., Hicks, A. K., Greer, C., Mroczkowski, T., Barrientos, L. F., Bayliss, M., Carlstrom, J. E., Gilbank, D. G., Gralla, M., Hlavacek-Larrondo, J., Leitch, E., Mazzotta, P., Miller, C., Muchovej, S. J. C., Schrabback, T., Yee, H. K. C. |
| سنة النشر: | 2015 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies |
| الوصف: | We present an initial study of the mass and evolutionary state of a massive and distant cluster, RCS2 J232727.6-020437. This cluster, at z=0.6986, is the richest cluster discovered in the RCS2 project. The mass measurements presented in this paper are derived from all possible mass proxies: X-ray measurements, weak-lensing shear, strong lensing, Sunyaev Zel'dovich effect decrement, the velocity distribution of cluster member galaxies, and galaxy richness. While each of these observables probe the mass of the cluster at a different radius, they all indicate that RCS2 J232727.6-020437 is among the most massive clusters at this redshift, with an estimated mass of M_200 ~3 x10^15 h^-1 Msun. In this paper, we demonstrate that the various observables are all reasonably consistent with each other to within their uncertainties. RCS2 J232727.6-020437 appears to be well relaxed -- with circular and concentric X-ray isophotes, with a cool core, and no indication of significant substructure in extensive galaxy velocity data. Comment: 19 pages, 15 figures, submitted to ApJ on March 5, 2015; in press. Manuscript revised following the referee review |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/0004-637X/814/1/21 |
| الوصول الحر: | http://arxiv.org/abs/1503.07188Test |
| رقم الانضمام: | edsarx.1503.07188 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/0004-637X/814/1/21 |
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