Spectral index distribution over radio lobes of 4C 14.11 using astrophysical data in FITS format
| Autor: | Vesna Borka Jovanović, Duško Borka, Arsenije Arsenić, Predrag Jovanović |
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| Rok vydání: | 2023 |
| Předmět: |
Atmospheric Science
non-thermal [Radiation mechanisms] active [Galaxies] general [Radio continuum] Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences Aerospace Engineering Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Surveys Astrophysics Astrophysics - Astrophysics of Galaxies Geophysics Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) General Earth and Planetary Sciences jets [Galaxies] Astrophysics::Galaxy Astrophysics |
| Zdroj: | Advances in Space Research |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/j.asr.2022.05.062 |
| Popis: | The goal of this paper is to investigate the flux and spectral index distribution of FR II radio galaxy 4C 14.11. We focused on the distribution of flux and spectral indices over the lobes, as well as in their hot spots. For that purpose, we used publicly available observations of this radio galaxy given at 1450 and 8440 MHz. Particularly, we used Leahy's Atlas of radio-emitting double radio sources, Jodrell Bank Centre for Astrophysics in Manchester, as well as NASA/IPAC Extragalactic Database. We found that the non-thermal (synchrotron) radiation dominates over the areas of the lobes. Distinction between hot spots and rest of the lobes are much smaller in the spectral index than in the flux. We also found that over the inner parts of both lobes, spectral index $\alpha$ is flat in average and significantly higher than 1.2, indicating that 4C 14.11 is old AGN. Comment: 8 pages, 5 figures, 1 FITS file. Accepted for publication in Adv. Space Res |
| Databáze: | OpenAIRE |
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