Russian Federation
Russian Federation
Institute for Nuclear Research of the Russian Academy of Sciences
Special Astrophysical Observatory of the Russian Academy of Sciences
Nizhny Arkhyz, Cherkessk, Russian Federation
Russian Federation
Russian Federation
Nizhny Arkhyz, Cherkessk, Russian Federation
Institute for Nuclear Research of the Russian Academy of Sciences
Russian Federation
Russian Federation
Lebedev Physical Institute of the Russian Academy of Sciences
Russian Federation
Russian Federation
Russian Federation
Russian Federation
Russian Federation
UDC 520
UDC 524
UDC 524.7-1/-8
UDC 524.7-7
UDC 524.7
CSCSTI 29.27
CSCSTI 29.31
CSCSTI 41.29
CSCSTI 41.51
CSCSTI 41.17
Russian Classification of Professions by Education 03.05.01
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 6143
Russian Trade and Bibliographic Classification 6146
BISAC SCI004000 Astronomy
We present a study of the multiwavelength properties of high-frequency peaked (HFP) radio sources. The study involved the simultaneous RATAN-600 measurements at frequencies of 1.2, 2.3, 4.7, 8.2, 11.2, and 22.3 GHz in 1997-2024, the RT-32 measurements at 5.05 and 8.63 GHz (IAA RAS), the RT-22 data at 36.8 GHz (CrAO RAS), and the literature data. It was found that the variability of the synchrotron emission of HFP sources is relatively low, it reaches 0.02-0.23 on the monitoring time scale of 17-27 years. Modeling of the broadband radio spectra of HFP sources shows that they can be satisfactorily described both by synchrotron self-absorption and by free–free absorption. For two of the sources, PKS 1614$+$051 and PKS 2126$-$158, we calculated the evolution of the synchrotron self-absorption spectrum parameters and the magnetic field strength. The results of the optical spectroscopical study of PKS 1614$+$051 and PKS 2126$-$158, performed with the SCORPIO-1 spectrograph at the 6-meter telescope, revealed that they have different internal structures and are located in different galactic environments.
galaxies: active; radio continuum: galaxies; methods: observational
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