用RATAN-600研究窄线Seyfert 1星系的射电光谱演化

Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022) Pub Date : 2022-09-25 DOI:10.22323/1.425.0029

A. Mikhailov, Y. Sotnikova, T. Mufakharov, M. Mingaliev, T. Semenova

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引用次数: 0

摘要

我们给出了窄线Seyfert 1 (NLS1)星系的射电特性，这是利用RATAN-600射电望远镜在频率范围1的准同时测量得到的。2-22。3 GHz。95个nls1的样本包括发射和不发射射线的星系。一般来说，发射射线的nls1比不发射射线的nls1更具有无线电亮度和无线电响度。另一个区别是射线发射体的光谱演变更强烈:光谱指数在数月的时间尺度上重复变化，变异性很高，在4.7-11.2 GHz平均为26-37%。所得到的射线发射体和非发射体之间的差异可能是由于射线发射体中不断演变的耀斑成分造成的，而对于不发射射线的nls1来说，静态光谱成分占主导地位。宇宙:理论观测

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Study of the radio spectra evolution of Narrow-line Seyfert 1 galaxies with RATAN-600

We present the radio properties of narrow-line Seyfert 1 (NLS1) galaxies, obtained using quasi-simultaneous measurements with the radio telescope RATAN-600 in the frequency range 1 . 2–22 . 3 GHz. The sample of 95 NLS1s includes both galaxies emitting and not emitting 𝛾 -rays. Generally, 𝛾 -ray emitting NLS1s are more radio luminous and radio-loud than those not emitting 𝛾 -rays. The other difference is the more intensive spectral evolution for 𝛾 -ray emitters: the repet-itive change of the spectral index sign on a time scale of months and a high level of variability, on average 26–37% at 4.7–11.2 GHz. The obtained differences between 𝛾 -ray emitting and non-emitting NLS1s can be caused by an evolving flare component in the 𝛾 -ray emitters, while for the NLS1s not emitting 𝛾 -rays a quiescent spectral component is predominant. Universe: Theory Observations

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Proceedings of The Multifaceted Universe: Theory and Observations - 2022 — PoS(MUTO2022)

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