RA Committee of Science Advanced Research Grant 21AG-1C053 (2021-2026)

Revelation of the early stages of galaxy evolution
by means of multiwavelength study of active galaxies

Among the main tasks of modern astrophysics is the understanding of the evolution of galaxies, the revelation of physical properties of active galaxies and their energetic resources. The activity of galaxies is especially vigorously manifested in early stages of their evolution, therefore comprehensive studies of active galaxies are the basis for understanding the evolution of galaxies. Based on X-ray, infrared (IR) and radio sources, a large homogeneous sample of active galaxies will be constructed, which will significantly supplement and enrich the list of active galaxies found in the optical range. Morphological research will be carried out and interacting pairs/multiples and merging galaxies will be revealed to study interactions and merging. The luminosities of galaxies and X-ray/opt, IR/opt and radio/opt flux ratios will be calculated: many new high luminosity objects will be discovered. The physical properties of active galaxies will be studied, in particular the star formation rate and the relationship between X-ray/UV/opt/IR/radio. Based on the changes in the obtained physical properties over distances, the regularities of the early stages of the evolution of galaxies will be revealed. A large homogeneous multi-wavelength catalog of active galaxies will be published.



Research Team


Areg Mickaelian
PI; PhD
Leading researcher
Ruben Andreasyan
PhD
Senior researcher
Hayk Abrahamyan
PhD
Researcher
Michel Dennefeld
PhD, IAP (France)
Foreign advisor


Gurgen Paronyan
Researcher

Gor Mikayelyan
Researcher

Andranik Sukiasyan
Junior researcher

Varduhi Mkrtchyan
Assistant astronomer


Project Tasks


ROSAT BSC/FSC extragalactic sample
IRAS PSC/FSC extragalactic sample
Study of radiogalaxies in clusters

Spectroscopic study of X-ray, IR and radio galaxies and quasars


Morphological study of X-ray, IR and radio galaxies

Ultra-Luminous Infrared Galaxies

Multiwavelength studies of IR galaxies



Obtained Results

  • Database of Markarian Galaxies;
  • Fine classification of Active Galaxies;

    • Expected Results

  • MW database for active galaxies (also available online);
  • high-quality spectral database for all active galaxies (also available online);
  • revised optical classification for active galaxies activity types using SDSS and other spectroscopic
    databases and revealing many new AGN and Starbursts;
  • revealing many new high luminosity IR galaxies (ULIRGs and HLIRGs);
  • database of MW SEDs for all active galaxies;
  • revision of the completeness and surface density of active galaxies;
  • luminosity evolution of various sub-samples in active galaxy catalog;
  • transition of properties between various objects and their interrelationship;
  • publication of online MW catalogue of the largest sample of active galaxies (Vizier, CDS).


    • Published Papers

  • Mickaelian, A. M.; Abrahamyan, H. V.; Mikayelyan, G. A.; Paronyan, G. M. 2024 - Homogeneous fine classification of Markarian galaxies based on SDSS medium-resolution spectroscopy // A&A, 682, id A174, ADS
  • Astsatryan, H.; Babayan, S.; Mickaelian, A. M.; Mikayelyan, G. A.; Astsatryan, M. 2024 - Cloud-Based Machine Learning Service for Astronomical Sub-Object Classification: Case Study on the First Byurakan Survey Spectra // DSJ, 23 6, 1-14, ADS
  • Mikayelyan, G. A.; Mickaelian, A. M.; Abrahamyan, H. V.; Paronyan, G. M. 2023 - Building the Largest Sample of IR Galaxies. Preliminary Results // ComBAO, 70 2, 321-327, ADS
  • Mickaelian, A. M.; Abrahamyan, H. V.; Paronyan, G. M.; Mikayelyan, G. A.; Andreasyan, R. R.; Sukiasyan, A. G.; Hambardzumyan, L. A.; Mkrtchyan, V. K.; Gasparyan, A. A. 2023 - Astronomical Surveys and Active Galaxies // ComBAO, 70 2, 261-276, ADS
  • Andreasyan, R. R.; Abrahamyan, H. V.; Paronyan, G. M.; Mikayelyan, G. A.; Mickaelian, A. M. 2023 - On a Possible Mechanism for the Start or Resumption of Activity of Radio Galaxies in Clusters of Galaxies // Ap, 66 3, 304-310, ADS
  • Paronyan, G. M.; Mickaelian, A. M.; Abrahamyan, H. V.; Mikayelyan, G. A.; Sukiasyan, A. G.; Hambardzumyan, L. A.; Mkrtchyan, V. K. 2023 - Study of the X-ray properties of radio sources, based on NVSS catalogue // ComBAO, 70 1, 88-93, ADS
  • Abrahamyan, H. V.; Mickaelian, A. M.; Mikayelyan, G. A.; Paronyan, G. M.; Sukiasyan, A. G.; Mkrtchyan, V. K.; Hambardzumyan, L. A. 2023 - Classification of Blazars by Activity Types // ComBAO, 70 1, 83-87, ADS
  • Mickaelian, A. M.; Abrahamyan, H. V.; Paronyan, G. M.; Mikayelyan, G. A.; Andreasyan, R. R.; Sukiasyan, A. G.; Hambardzumyan, L. A.; Mkrtchyan, V. K. 2023 - Multiwavelength search and studies of active galaxies // ComBAO, 70 1, 68-76, ADS
  • Abrahamyan, H. V.; Mickaelian, A. M.; Paronyan, G. M.; Mikayelyan, G. A.; Sukiasyan, A. G. 2023 - Optical Classification of BZG Objects from the BZCAT Blazar Catalog // Ap, 66 1, 11-23, ADS
  • Mickaelian, A. M.; Mikayelyan, G. A.; Astsatryan, H. V.; Knyazyan, A. V. 2023 - Armenian Virtual Observatory: Status and activities // A&C, 42, id. 100689, ADS
  • Abrahamyan, H. V.; Mickaelian, A. M.; Paronyan, G. M.; Mikayelyan, G. A. 2022 - Optical properties of variable radio sources from NVSS and FIRST // ComBAO, 69 2, 340-342, ADS
  • Mickaelian, A. M.; Mikayelyan, G. A.; Abrahamyan, H. V.; Paronyan, G. M. 2022 - Multiwavelength Space Astronomy // ComBAO, 69 2, 287-294, ADS
  • Mickaelian, A. M.; Abrahamyan, H. V.; Paronyan, G. M.; Mikayelyan, G. A. 2022 - Astronomical Surveys, Catalogues, Archives, Databases and Virtual Observatories // ComBAO, 69 2, 179-186, ADS
  • Mickaelian, A. M.; Abrahamyan, H. V.; Mikayelyan, G. A.; Paronyan, G. M. 2022 - Fine classification of the emission-line spectra of active galaxies // ComBAO, 69 1, 10-24, ADS
  • Mickaelian, A. M.; Andreasyan, R. R.; Abrahamyan, H. V.; Paronyan, G. M.; Mikayelyan, G. A.; Sukiasyan, A. G.; Mkrtchyan, V. K. 2021 - Multiwavelength search for and studies of active galaxies // AApTr, 32 4, 331-354, ADS
  • Paronyan, G. M.; Mickaelian, A. M.; Abrahamyan, H. V.; Mikayelyan, G. A.; Sukiasyan, A. G. 2021 - Study of the X-ray properties of blazars, based on BZCAT catalogue // ComBAO, 68 2, 528-533, ADS
  • Andreasyan, R. R. 2021 - On the Magnetic Fields of Galaxies // ComBAO, 68 2, 470-477, ADS
  • Abrahamyan, H. V.; Mickaelian, A. M.; Paronyan, G. M.; Mikayelyan, G. A.; Sukiasyan, A. G. 2021 - Study of radio properties of active galaxies // ComBAO, 68 2, 441-446, ADS
  • Mickaelian, A. M.; Sargsyan, L. A.; Mikayelyan, G. A.; Gigoyan, K. S.; Nesci, R.; Rossi, C. 2021 - The Digitized First Byurakan Survey (DFBS) as UNESCO Documentary Heritage // ComBAO, 68 2, 390-399, ADS
  • Mickaelian, A. M. 2021 - Markarian survey and Markarian galaxies // ComBAO, 68 2, 174-185, ADS