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2015•Astrophysical BulletinRequires access

Multifrequency quasi-simultaneous observations of six low-synchrotron peaked blazars

Т. В. Муфахаров, Yu. V. Sotnikova, М. Г. Мингалиев, А. К. Эркенов

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Abstract

We made an estimation of the synchrotron peak frequency (ν peak ) of the spectral energy distribution (SED) for six blazars. These objects were selected as very-low-synchrotron peaked (VLSP) blazar candidates (with ν peak ≤ 1013 Hz).We have built the SED of the studied objects using quasi-simultaneous observations on the SAO RAS Zeiss-1000 and RATAN-600 telescopes and made an estimation of the synchrotron peak frequency. As a result, three sources (PKS0446+11, [HB89] 1308+326, and 3C345) were confirmed as VLSP, for the three remaining blazars the calculations have shown ν peak > 1013 Hz.

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What this paper is about

We made an estimation of the synchrotron peak frequency (ν peak ) of the spectral energy distribution (SED) for six blazars. These objects were selected as very-low-synchrotron peaked (VLSP) blazar candidates (with ν peak ≤ 1013 Hz).We have built the SED of the studied objects using quasi-simultaneous observations on the SAO RAS Zeiss-1000 and RATAN-600 telescopes and made an estimation of the synchrotron peak frequency. As a result, three sources (PKS0446+11, [HB89] 1308+326, and 3C345) were confirmed as VLSP, for the three remaining blazars the calculations have shown ν peak > 1013 Hz.

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Available abstract

We made an estimation of the synchrotron peak frequency (ν peak ) of the spectral energy distribution (SED) for six blazars. These objects were selected as very-low-synchrotron peaked (VLSP) blazar candidates (with ν peak ≤ 1013 Hz).We have built the SED of the studied objects using quasi-simultaneous observations on the SAO RAS Zeiss-1000 and RATAN-600 telescopes and made an estimation of the synchrotron peak frequency. As a result, three sources (PKS0446+11, [HB89] 1308+326, and 3C345) were confirmed as VLSP, for the three remaining blazars the calculations have shown ν peak > 1013 Hz.

Key concepts: Blazar, Synchrotron, Physics, Astrophysics, Spectral energy distribution, Synchrotron radiation, Optics, Gamma ray

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