2018A&A...612A..43K


Query : 2018A&A...612A..43K

2018A&A...612A..43K - Astronomy and Astrophysics, volume 612A, 43-43 (2018/4-1)

Studying the highly bent spectra of FR II-type radio galaxies with the KDA EXT model.

KULIGOWSKA E.

Abstract (from CDS):


Context. The Kaiser, Dennett-Thorpe & Alexander (KDA, 1997MNRAS.292..723K) EXT model, that is, the extension of the KDA model of Fanaroff & Riley (FR) II-type source evolution, is applied and confronted with the observational data for selected FR II-type radio sources with significantly aged radio spectra.
Aims. A sample of FR II-type radio galaxies with radio spectra strongly bent at their highest frequencies is used for testing the usefulness of the KDA EXT model.
Methods. The dynamical evolution of FR II-type sources predicted with the KDA EXT model is briefly presented and discussed. The results are then compared to the ones obtained with the classical KDA approach, assuming the source's continuous injection and self-similarity.
Results. The results and corresponding diagrams obtained for the eight sample sources indicate that the KDA EXT model predicts the observed radio spectra significantly better than the best spectral fit provided by the original KDA model.

Abstract Copyright: © ESO 2018

Journal keyword(s): galaxies: active - galaxies: evolution - galaxies: jets - radio continuum: galaxies

Simbad objects: 12

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Number of rows : 12
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 3C 6.1 BLL 00 16 31.60 +79 16 51.7   22       ~ 120 1
2 2C 92 Sy2 01 08 17.0 -16 04 20     20     ~ 66 1
3 3C 41.0 rG 01 26 44.30 +33 13 11.0   21       ~ 164 1
4 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2697 2
5 LEDA 2823181 Sy2 02 37 43.5 -19 32 35     21.3     ~ 70 0
6 NAME Per B AGN 04 37 04.37510272 +29 40 13.8184969   21.7       ~ 498 2
7 NGC 1692 AGN 04 55 23.7155967168 -20 34 16.066069536   14.21 14.0 12.70   ~ 90 1
8 3C 217 Rad 09 08 50.958 +37 48 18.28   22       ~ 122 1
9 3C 247 QSO 10 58 58.70 +43 01 23.0   21.5       ~ 154 1
10 3C 300 SyG 14 22 59.85648 +19 35 36.7152   19.66 18.73     ~ 192 2
11 7C 154914.09+625020.00 QSO 15 49 59.206 +62 41 18.31   21.92 20.70     ~ 133 2
12 3C 401 SyG 19 40 25.2 +60 41 34   19.1       ~ 196 1

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2022.10.03-04:51:45

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