Study of Compact Radio Galaxies in the 7C II Field

Abrahamyan, H. V.; Andreasyan, R. R.; Hovhannisyan, M. A.; Paronyan, G. M.

doi:10.1007/s10511-014-9341-x

Cited by 2 publications

(7 citation statements)

References 9 publications

(9 reference statements)

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“…Similar work was carried out by Abrahamyan et al (2014). The authors investigated 7C (Hales et al 2007) catalogs and separated 26 radio galaxies, as well as estimated radio spectral indices of those objects.…”

Section: Resultssupporting

confidence: 68%

“…The authors investigated 7C (Hales et al 2007) catalogs and separated 26 radio galaxies, as well as estimated radio spectral indices of those objects. We have compared our list to the list proposed by Abrahamyan et al (2014). As a result, the objects have not been identified.…”

Section: Resultsmentioning

confidence: 99%

“…Several authors have estimated the radio spectral index for quasars and radio galaxies. In our work, we have estimated radio spectral indices for 198 radio objects and compared our results with some authors (e.g., with Abrahamyan et al 2014, Tiwari 2019, etc. ).…”

Section: Radio Properties Of Active Galaxiesmentioning

confidence: 87%

“…Abrahamyan et al (2014) investigated the radio sources in the 7C II field and estimated radio spectral indices for 26 radio sources.…”

Section: Introductionmentioning

confidence: 99%

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The nature of active galaxies based on their radio properties

Abrahamyan

2020

Astron Nachr

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In this paper, we investigate radio properties of active galaxies taken from the reference [Véron‐Cetty & Véron (2010)] catalog. The galaxies are limited to magnitudes in the range of 12m − 19m. We have cross‐correlated the list with radio catalogs and selected those galaxies that have data on six or more radio fluxes at different wavelengths. As a result, we have 198 galaxies that satisfy these conditions. Using SDSS DR15, we have obtained 96 spectroscopic identifications of the 198 objects. After the classification, 85% of the 96 objects have changed their types. Available data on the classification of these objects and our classification showed that 56.7% of them are Seyfert galaxies. For all the objects, we have built radio spectra and estimated radio spectral indices. As a result, we obtain αtrue‾=−0.6089±0.056(trueα‾Seyfert=−0.6013±0.027, trueα‾LINER=−0.5955±0.025, trueα‾normalHII=−0.6672±0.039, trueα‾Comp.=−0.7128±0.043). We discuss the radio properties of active galaxies based on their radio spectral indices.

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Section: Resultssupporting

confidence: 68%

Section: Resultsmentioning

confidence: 99%

Section: Radio Properties Of Active Galaxiesmentioning

confidence: 87%

“…Abrahamyan et al (2014) investigated the radio sources in the 7C II field and estimated radio spectral indices for 26 radio sources.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The nature of active galaxies based on their radio properties

Abrahamyan

2020

Astron Nachr

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show abstract

“…A number of authors have estimated radio spectral index for quasars and radio galaxies. In our work we have estimated radio spectral indices for 116 radio objects and compared our results with some authors (for example with Abrahamyan et al (2014), Tiwari (2019), etc).…”

Section: Investigated Datamentioning

confidence: 97%

Study of radio properties of active galaxies

Abrahamyan

Mickaelian

Paronyan

et al. 2021

ComBAO

Self Cite

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In this paper we investigate radio properties of active galaxies taken from Veron-Cetty & Veron (2010) catalogue. The galaxies are limited to magnitudes in the range of 12m-19m. We have cross-correlated the list with radio catalogues and selected those galaxies, which have data on 5 radio fluxes at different wavelengths. For all the objects we have built radio spectra and estimate radio spectral indices. As a result, we have αaverage±0.5036±0.0717.

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Study of Compact Radio Galaxies in the 7C II Field

Abstract: 26 radio galaxies in field II of the Cambridge 7C list which scintillate at 102 MHz are studied in detail to clarify the major physical and structural features of these extragalactic radio sources. The results are compared with data for scintillating quasars in the same field.

Cited by 2 publications

References 9 publications

The nature of active galaxies based on their radio properties

The nature of active galaxies based on their radio properties

Study of radio properties of active galaxies

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