A newly discovered radio halo in merging cluster MACS J2243.3-0935

	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.