Detection of an X-ray jet in 3C 371 with Chandra

被引:44
作者
Pesce, JE
Sambruna, RM
Tavecchio, F
Maraschi, L
Cheung, CC
Urry, CM
Scarpa, R
机构
[1] George Mason Univ, Dept Phys & Astron, Fairfax, VA 22030 USA
[2] Eureka Sci, Oakland, CA 94602 USA
[3] George Mason Univ, Sch Computat Sci, Fairfax, VA 22030 USA
[4] Osserv Astron Brera, I-20121 Milan, Italy
[5] Brandeis Univ, Dept Phys, Waltham, MA 02454 USA
[6] Space Telescope Sci Inst, Baltimore, MD 21218 USA
[7] European So Observ, Santiago 19001, Chile
基金
美国国家航空航天局;
关键词
galaxies : active; galaxies : individual (3C 371); galaxies : jets; X-rays : galaxies;
D O I
10.1086/322939
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report the detection at X-rays of the radio/optical jet of 3C 371 from a short (10 ks) Chandra exposure in 2000 March. We also present a new MERLIN observation at 1.4 GHz together with a reanalysis of the archival Hubble Space Telescope Wide Field Planetary Camera 2 F555W image. Despite the limited signal-to-noise ratio of the Chandra data, the X-ray morphology is clearly different from that of the radio/optical emission, with the brightest X-ray knot at 1."7 from the nucleus and little X-ray emission from the brightest radio/optical knot at 3."1. We construct the spectral energy distributions for the two emission regions at 1."7 and 3."1. Both show that the X-ray flux is below the extrapolation from the radio-to-optical continuum, suggesting a moderately beamed synchrotron from an electron population with a decreasing high-energy cutoff as a plausible emission mechanism.
引用
收藏
页码:L79 / L82
页数:4
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