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A 327 MHz VLBI study of high redshift radio galaxies 1345+245, 1809+407 and 2349+289
Cai, Z; Nan, R; Schilizzi, RT; Miley, GK; Bremer, MAR; van Dam, B; Rottgering, HJA; Liang, H; Chambers, KC; Gurvits, LI; Zhang, HY
2002
发表期刊ASTRONOMY & ASTROPHYSICS
卷号381期号:2页码:401-407
摘要Three high redshift radio galaxies, 1345+245 (4C 24.28, z = 2.889), 1809+407 (4C 40.36, z = 2.267) and 2349+289 (4C 28.58, z = 2.905) were observed with VLBI at 327 MHz giving an angular resolution of similar or equal to40-100 mas and yielding images with the off-source noise level of 3sigma similar or equal to 3.5 mJy/beam. On the centiarcsecond scale, the three sources are each characterized by two components with asymmetry both in flux density and in size. The compact components in the VLBI maps correspond to the hot spots in the VLA maps. No radio cores have been detected. The physical parameters for the components derived are consistent with a model in which shocks accelerate electrons in the hotspots.
关键词Galaxies : High Redshift Galaxies : Magnetic Fields Galaxies : Jets
DOI10.1051/0004-6361:20011579
收录类别SCI
语种英语
WOS记录号WOS:000173343100005
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8544
专题射电天文研究部
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing Astron Observ, Beijing 100012, Peoples R China
2.VLBI Europe, Joint Inst, NL-7990 AA Dwingeloo, Netherlands
3.Leiden Univ, NL-2300 RA Leiden, Netherlands
4.Space Res Org Netherlands, NL-3584 CA Utrecht, Netherlands
5.Shanghai Astron Observ, Shanghai 200030, Peoples R China
6.Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
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Cai, Z,Nan, R,Schilizzi, RT,et al. A 327 MHz VLBI study of high redshift radio galaxies 1345+245, 1809+407 and 2349+289[J]. ASTRONOMY & ASTROPHYSICS,2002,381(2):401-407.
APA Cai, Z.,Nan, R.,Schilizzi, RT.,Miley, GK.,Bremer, MAR.,...&Zhang, HY.(2002).A 327 MHz VLBI study of high redshift radio galaxies 1345+245, 1809+407 and 2349+289.ASTRONOMY & ASTROPHYSICS,381(2),401-407.
MLA Cai, Z,et al."A 327 MHz VLBI study of high redshift radio galaxies 1345+245, 1809+407 and 2349+289".ASTRONOMY & ASTROPHYSICS 381.2(2002):401-407.
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