2022
DOI: 10.1134/s1990341322030117
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Radio Variability and Broad-Band Spectra of Infrared Galaxies with and without OH Megamaser Emission

Abstract: We study the radio variability of galaxies with and without sources of hydroxyl (OH) megamaser radiation based on the continuum radio measurements conducted in 2019-2022 with the radio telescope RATAN-600 at frequencies of 2.3, 4.7, 8.2, and 11.2 GHz. Presumably, radio continuum emission significantly affects the megamaser radiation brightness, therefore, such a characteristic as the variability of radio emission is important for determining the OHM galaxies parameters. With additional data from the literature… Show more

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Cited by 5 publications
(1 citation statement)
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“…Based on the BLcat 4 RATAN-600 measurements at frequencies 1-22 GHz covering the period of observations 2006-2022 (Mingaliev et al 2014;Sotnikova et al 2022) and the CATS database 5 (Verkhodanov et al 1997(Verkhodanov et al , 2005, we calculated the averaged spectral flux density at a frequency of 5 GHz, radio spectral indices, and radio variability. The averaged spectral indices α were calculated for the 1-2, 2-5, 5-8, 5-11, 8-11, 11-22, 8-22, and 5-22 GHz ranges.…”
Section: Initial Datamentioning
confidence: 99%
“…Based on the BLcat 4 RATAN-600 measurements at frequencies 1-22 GHz covering the period of observations 2006-2022 (Mingaliev et al 2014;Sotnikova et al 2022) and the CATS database 5 (Verkhodanov et al 1997(Verkhodanov et al , 2005, we calculated the averaged spectral flux density at a frequency of 5 GHz, radio spectral indices, and radio variability. The averaged spectral indices α were calculated for the 1-2, 2-5, 5-8, 5-11, 8-11, 11-22, 8-22, and 5-22 GHz ranges.…”
Section: Initial Datamentioning
confidence: 99%