CHANDRA OBSERVATIONS OF 3C RADIO SOURCES WITH z < 0.3: NUCLEI, DIFFUSE EMISSION, JETS, AND HOTSPOTS

被引：59
作者：
Massaro, F. [1 ]
Harris, D. E. [1 ]
Tremblay, G. R. [2 ]
Axon, D. [2 ,3 ]
Baum, S. A. [4 ]
Capetti, A. [5 ]
Chiaberge, M. [6 ,7 ]
Gilli, R. [8 ]
Giovannini, G. [7 ,9 ]
Grandi, P. [10 ]
Macchetto, F. D. [6 ]
O'Dea, C. P. [2 ]
Risaliti, G. [11 ]
Sparks, W. [6 ]
机构：
[1] Harvard Smithsonian Astrophys Observ, Cambridge, MA 02138 USA
[2] Rochester Inst Technol, Dept Phys, Carlson Ctr Imaging Sci, Rochester, NY 14623 USA
[3] Univ Sussex, Sch Math & Phys Sci, Brighton BN2 9BH, E Sussex, England
[4] Carlson Ctr Imaging Sci 76 3144, Rochester, NY 14623 USA
[5] INAF Osservatorio Astron Torino, I-10025 Pino Torinese, Italy
[6] Space Telescope Sci Inst, Baltimore, MD 21218 USA
[7] INAF Ist Radioastron Bologna, I-40129 Bologna, Italy
[8] INAF Osservatorio Astron Bologna, I-40127 Bologna, Italy
[9] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy
[10] INAF IASF Ist Astrofis Spaziale & Fis Cosm Bologn, I-40129 Bologna, Italy
[11] INAF Osservatorio Astron Arcetri, I-50125 Florence, Italy
来源：
ASTROPHYSICAL JOURNAL | 2010年 / 714卷 / 01期
关键词：
galaxies: active; radio continuum: galaxies; X-rays: general; X-RAY-EMISSION; PHOTON IMAGING CAMERA; FIELD NORTH SURVEY; XMM-NEWTON; COMPLETE SAMPLE; SURFACE PHOTOMETRY; LINE REGION; GALAXIES; GAS; SPECTRUM;
D O I：
10.1088/0004-637X/714/1/589
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report on our Chandra Cycle 9 program to observe half of the 60 (unobserved by Chandra) 3C radio sources at z < 0.3 for 8 ks each. Here we give the basic data: the X-ray intensity of the nuclei and any features associated with radio structures such as hotspots and knots in jets. We have measured fluxes in soft, medium, and hard bands and are thus able to isolate sources with significant intrinsic column density. For the stronger nuclei, we have applied the standard spectral analysis which provides the best-fit values of X-ray spectral index and column density. We find evidence for intrinsic absorption exceeding a column density of 10(22) cm(-2) for one-third of our sources.
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页码：589 / 604
页数：16
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