THE SCALING RELATIONS AND THE FUNDAMENTAL PLANE FOR RADIO HALOS AND RELICS OF GALAXY CLUSTERS
文献类型:期刊论文
作者 | Yuan, Z. S.1,2; Han, J. L.1; Wen, Z. L.1 |
刊名 | ASTROPHYSICAL JOURNAL |
出版日期 | 2015-11-01 |
卷号 | 813期号:1 |
关键词 | galaxies: clusters: general galaxies: clusters: intracluster medium |
英文摘要 | Diffuse radio emission in galaxy clusters is known to be related to cluster mass and cluster dynamical state. We collect the observed fluxes of radio halos, relics, and mini-halos for a sample of galaxy clusters from the literature, and calculate their radio powers. We then obtain the values of cluster mass or mass proxies from previous observations, and also obtain the various dynamical parameters of these galaxy clusters from optical and X-ray data. The radio powers of relics, halos, and mini-halos are correlated with the cluster masses or mass proxies, as found by previous authors, while the correlations concerning giant radio halos are in general the strongest. We found that the inclusion of dynamical parameters as the third dimension can significantly reduce the data scatter for the scaling relations, especially for radio halos. We therefore conclude that the substructures in X-ray images of galaxy clusters and the irregular distributions of optical brightness of member galaxies can be used to quantitatively characterize the shock waves and turbulence in the intracluster medium responsible for re-accelerating particles to generate the observed diffuse radio emission. The power of radio halos and relics is correlated with cluster mass proxies and dynamical parameters in the form of a fundamental plane. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000365284100077 |
源URL | [http://ir.bao.ac.cn/handle/114a11/5525] |
专题 | 国家天文台_射电天文研究部 |
作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Yuan, Z. S.,Han, J. L.,Wen, Z. L.. THE SCALING RELATIONS AND THE FUNDAMENTAL PLANE FOR RADIO HALOS AND RELICS OF GALAXY CLUSTERS[J]. ASTROPHYSICAL JOURNAL,2015,813(1). |
APA | Yuan, Z. S.,Han, J. L.,&Wen, Z. L..(2015).THE SCALING RELATIONS AND THE FUNDAMENTAL PLANE FOR RADIO HALOS AND RELICS OF GALAXY CLUSTERS.ASTROPHYSICAL JOURNAL,813(1). |
MLA | Yuan, Z. S.,et al."THE SCALING RELATIONS AND THE FUNDAMENTAL PLANE FOR RADIO HALOS AND RELICS OF GALAXY CLUSTERS".ASTROPHYSICAL JOURNAL 813.1(2015). |
入库方式: OAI收割
来源:国家天文台
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