Chandra X-ray detection of the radio hot spots of 3C 295

被引：83

作者：

Harris, DE

Nulsen, PEJ

Ponman, TJ

Bautz, M

Cameron, RA

David, LP

Donnelly, RH

Forman, WR

Grego, L

Hardcastle, MJ

Henry, JP

Jones, C

Leahy, JP

Markevitch, M

Martel, AR

McNamara, BR

Mazzotta, P

Tucker, W

Virani, SN

Vrtilek, J

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[2] Univ Wollongong, Dept Engn Phys, Wollongong, NSW 2522, Australia

[3] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[4] MIT, Ctr Space Res, Cambridge, MA 02139 USA

[5] Univ Bristol, Dept Phys, Bristol BS8 1TL, Avon, England

[6] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

[7] Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England

[8] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

ASTROPHYSICAL JOURNAL | 2000年 / 530卷 / 02期

基金：

美国国家航空航天局;

关键词：

galaxies : individual (3C 295); magnetic fields; radiation mechanisms : nonthermal;

D O I：

10.1086/312503

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An observation of the radio galaxy 3C 295 during the calibration phase of the Chandra X-Ray Observatory reveals X-ray emission from the core of the galaxy, from each of the two prominent radio hot spots, and from the previously known cluster gas. We discuss the possible emission processes for the hot spots and argue that a synchrotron self-Compton (SSC) model is preferred for most or all of the observed X-ray emission. SSC models with near-equipartition fields thus explain the X-ray emission from the hot spots in the two highest surface brightness FR II radio galaxies, Cygnus A and 3C 295. This lends weight to the assumption of equipartition and suggests that relativistic protons do not dominate the particle energy density.

引用

页码：L81 / L84

页数：4

共 10 条

[1] THE RADIO TO X-RAY-SPECTRUM OF THE M87 JET AND NUCLEUS [J].