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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
Source PublicationASTRONOMY & ASTROPHYSICS
Volume381Issue:2Pages:401-407
AbstractThree 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.
KeywordGalaxies : High Redshift Galaxies : Magnetic Fields Galaxies : Jets
DOI10.1051/0004-6361:20011579
Indexed BySCI
Language英语
WOS IDWOS:000173343100005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8544
Collection射电天文研究部
Affiliation1.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
Recommended Citation
GB/T 7714
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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