A newly discovered radio halo in merging cluster MACS J2243.3-0935 | |
Cantwell, T. M.1; Scaife, A. M. M.1; Oozeer, N.2,3,4; Wen, Z. L.5; Han, J. L.5 | |
刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
2016-05-11 | |
卷号 | 458期号:2页码:1803-1814 |
关键词 | galaxies: clusters: intracluster medium |
英文摘要 | We report the discovery of a radio halo in the massive merging cluster MACSJ2243.3-0935, as well as a new radio relic candidate, using the Giant Meterwave Radio Telescope and the Karoo Array Telescope-7 telescope. The radio halo is coincident with the cluster X-ray emission and has a largest linear scale of approximately 0.9 Mpc. We measure a flux density of 10.0 +/- 2.0 mJy at 610 MHz for the radio halo. We discuss equipartition estimates of the cluster magnetic field and constrain the value to be of the order of 1 mu G. The relic candidate is detected at the cluster virial radius where a filament meets the cluster. The relic candidate has a flux density of 5.2 +/- 0.8 mJy at 610 MHz. We discuss possible origins of the relic candidate emission and conclude that the candidate is consistent with an infall relic. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000374569600052 |
内容类型 | 期刊论文 |
源URL | [http://ir.bao.ac.cn/handle/114a11/5369] |
专题 | 国家天文台_射电天文研究部 |
作者单位 | 1.Jodrell Bank, Ctr Astrophys, Alan Turing Bldg,Oxford Rd, Manchester M13 9PL, Lancs, England 2.SKA South Africa, Pk Rd, ZA-7405 Cape Town, South Africa 3.African Inst Math Sci, 6-8 Melrose Rd, ZA-7945 Muizenberg, South Africa 4.North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa 5.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China |
推荐引用方式 GB/T 7714 | Cantwell, T. M.,Scaife, A. M. M.,Oozeer, N.,et al. A newly discovered radio halo in merging cluster MACS J2243.3-0935[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,458(2):1803-1814. |
APA | Cantwell, T. M.,Scaife, A. M. M.,Oozeer, N.,Wen, Z. L.,&Han, J. L..(2016).A newly discovered radio halo in merging cluster MACS J2243.3-0935.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,458(2),1803-1814. |
MLA | Cantwell, T. M.,et al."A newly discovered radio halo in merging cluster MACS J2243.3-0935".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 458.2(2016):1803-1814. |
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