THE DOUBLE-LOBED BLAZAR 3C-371

被引:31
作者
WROBEL, JM
LIND, KR
机构
[1] NATL RADIO ASTRON OBSERV,CHARLOTTESVILLE,VA 22903
[2] NEW MEXICO INST MIN & TECHNOL,DEPT PHYS,ASTROPHYS RES CTR,SOCORRO,NM 87801
关键词
Galaxies: individual (3C 371); Galaxies: nuclei; Galaxies: structure; Polarization; Radio sources: galaxies;
D O I
10.1086/168220
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
High dynamic range VLA imaging reveals, for the first time, that the blazar 3C 371 exhibits very low surface brightness twin radio lobes. These lobes straddle the dominant compact core and have a projected extent of ∼42h-1 kpc. A weak component located in the western lobe shares the morphology, size, and inferred magnetic field configuration of radio source hot spots. A continuous wiggling jet connects this hot spot with the compact core. Double lobes, hot spots, and one-sided jets are traits of extended, edge-brightened radio sources. The discovery of corresponding components in 3C 371's extended emission suggests that this emission is an edge-brightened double, viewed at a large enough angle to the line of sight that the radio lobes do not overlap. A moderate viewing angle is consistent with 3C 371's low bolometric luminosity for a blazar. The diffuse radio halo that surrounds the twin lobes may be related to the fat bridges or bridge distortions shown by edge-brightened doubles with similar radio powers.
引用
收藏
页码:135 / 140
页数:6
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