The variation of spectral index across the radio galaxy 3C 452

Recent maps of the radio galaxy 3C 452 made with the Cambridge One-Mile telescope at 408 and 1407 MHz have been compared with published maps at 2.7 and 5.0 GHz made with the same telescope. The spectral index is found to increase from 0.7 at the outer ends of the source to ≈ 1.7 at the centre. This...

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Bibliographic Details
Published inMonthly notices of the Royal Astronomical Society Vol. 180; no. 4; pp. 623 - 629
Main Author Burch, S. F.
Format Journal Article
LanguageEnglish
Published Oxford, UK Oxford University Press 01.10.1977
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Summary:Recent maps of the radio galaxy 3C 452 made with the Cambridge One-Mile telescope at 408 and 1407 MHz have been compared with published maps at 2.7 and 5.0 GHz made with the same telescope. The spectral index is found to increase from 0.7 at the outer ends of the source to ≈ 1.7 at the centre. This behaviour is probably caused by synchrotron losses in the radiating electrons and the observations are consistent with a simple model based on this assumption.
Bibliography:istex:AFB647CA8469AC4A60FF14B9E3FB803382385FC3
ark:/67375/HXZ-MLGF96JH-Q
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/180.4.623