11 new active galactic nuclei were detected in an all-sky X-ray source survey by researchers at the Russian Academy of Sciences. A team led by Grigory Uskov was inspection of X-ray sources found in the Spektr-RG (SRG) Space Observatory Art-XC telescope. So far, his studies have resulted in the identification of more than 50 AGNs and several cataclysmic variables. A deeper dive into the physical properties and radiation nature of these galaxies will be crucial to a wide range of studies, such as statistical insights, refine and test cosmological models, classification studies, etc.
AGN Classification Newly -Encontrerated
According to the recent study published In astronomy lyrics, the newly discovered active galactic nuclei of the Artss1-5 catalog are categorized as Seyfert galaxies, seven type 1 (SY 1), three type 1.9 (SY 1.9) and one type 2 (SY 2).
AGN or active galactic nuclei are considered the most luminous persistent sources of electromagnetic radiation in the universe. These compact regions in the center of a galaxy are extremely energetic due to the to a supermassive black hole or star formation activity in the center of the galaxy.
Based on their luminosity, AGNs are categorized as Seyfert’s galaxies and quasars. The Seyfert galaxies are less light ADVs, where the host galaxy is clearly visible and issues a lot of infrared radiation and has large optical emission lines.
Research Results
The published article states that the 11 newly found galaxies are located relatively close to Redshifts of 0.028-0.258. The x-ray luminosities of these sources are within the range of 2 to 300 ERG/s, therefore, typical for AGS in the present time.
The spectrum of one of the new AGNs, called SRGA J000132.9+240237, is described by an energy law with a slope less than 0.5, which suggests strong absorption and a significant contribution of reflected radiation in the dusty torus of the galaxy. The authors of the article observed that more long X-ray observations are required to determine the physical properties of this AGN.
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