Search Results - "Mickaelian, A. M."

Revised and updated catalogue of the First Byurakan Survey of late-type stars by Gigoyan, K. S., Mickaelian, A. M.

“…There have been 15 lists of late-type stars published between 1990 and 2010. These late-type stars have been found in the low-dispersion spectroscopic plates…”
Get full text

Proper motions and natures of First Byurakan Survey blue stellar objects by Mickaelian, A. M., Sinamyan, P. K.

“…A new method for combined calculations of proper motions (PMs) based on accurate measurements of POSS1 and POSS2 epoch plates is given. The positional accuracy…”
Get full text

Accurate photometry and variability of First Byurakan Survey blue stellar objects by Mickaelian, A. M., Mikayelyan, G. A., Sinamyan, P. K.

“…A new method for the combined calculation of magnitudes based on accurate measurements of Palomar Observatory Sky Survey (POSS) epochs 1 and 2 (POSS1 and…”
Get full text

Revised and updated catalogue of the First Byurakan Survey of Late-Type Stars: second edition by Gigoyan, K S, Mickaelian, A M, Kostandyan, G R

“…ABSTRACT A total of 18 lists of the First Byurakan Survey of Late-Type Stars (FBS LTS) were published between 1990 and 2016. The stars were found on FBS…”
Get full text

Multiwavelength astronomy and big data by Mickaelian, A. M.

“…Two major characteristics of modern astronomy are multiwavelength (MW) studies (fromγ-ray to radio) and big data (data acquisition, storage and analysis)…”
Get full text

Classification of BLL Blazars by Optical Activity Types by Mickaelian, A. M., Abrahamyan, H. V., Paronyan, G. M., Mikayelyan, G. A., Sukiasyan, A. G., Mkrtchyan, V. K.

“…We have carried out a spectral classification by the Activity Types for a subsample of Blazars from the BZCAT v.5 Catalogue, namely the BL Lac (BLL, Lacertids)…”
Get full text

Classification of Flat Spectrum Radio Quasars by Optical Activity Types by Mickaelian, A. M., Abrahamyan, H. V., Paronyan, G. M., Mikayelyan, G. A., Sukiasyan, A. G., Mkrtchyan, V. K.

“…We have carried out a spectral classification by the activity types for a subsample of blazars from the BZCAT v.5 Catalogue, namely the Flat Spectrum Radio…”
Get full text

Multiwavelength studies of Markarian galaxies by Mickaelian, A.M., Abrahamyan, H.V., Paronyan, G.M., Harutyunyan, G.S.

“…Markarian galaxies are the result of the First Byurakan Survey (FBS) conducted in 1965–1980 by B.E. Markarian et al. The sample consists of 1515 UV‐excess…”
Get full text

On a Possible Mechanism for the Start or Resumption of Activity of Radio Galaxies in Clusters of Galaxies by Andreasyan, R. R., Abrahamyan, H. V., Paronyan, G. M., Mikayelyan, G. A., Mickaelian, A. M.

“…We study the close proximity of the well-known and well-studied 3C31 class FRI radio galaxy in order to reveal the influence of the environment on an…”
Get full text

Optical Classification of BZG Objects from the BZCAT Blazar Catalog by Abrahamyan, H. V., Mickaelian, A. M., Paronyan, G. M., Mikayelyan, G. A., Sukiasyan, A. G.

“…In the blazar catalog BZCAT the objects are divided into 4 types: BZB, BZQ, BZG, and BZU. In this paper BZG objects are studied in order to determine their…”
Get full text

Fine Classification of QSOs and Seyferts for Activity Types Based on SDSS Spectroscopy by Mickaelian, A. M., Abrahamyan, H. V., Paronyan, G. M., Mikayelyan, G. A.

“…Using the SDSS spectroscopy, we have carried out fine optical spectral classification for activity types for 710 AGN candidates. These objects come from a…”
Get full text

Study and Classification of SDSS Spectra for Byurakan–Iras Galaxies by Mickaelian, A. M., Harutyunyan, G. S., Sarkissian, A.

“…The sample of Byurakan–IRAS galaxies (BIG) has been created based on optical identifications of IRAS Point Source Catalog (PSC) at high galactic latitudes. As…”
Get full text

Catalog of X-Ray Active Galactic Nuclei Based on ROSAT BSC and FSC Sources by Paronyan, G. M., Mickaelian, A. M., Abrahamyan, H. V., Mikayelyan, G. A.

“…A general catalog of active galactic nuclei (AGN) has been created from identified optical sources of X-ray data from the Hamburg-ROSAT Catalog (HRC) and the…”
Get full text

Markarian galaxies in UV and multiwavelength studies by Mickaelian, A. M., Abrahamyan, H. V., Gyulzadyan, M. V., Paronyan, G. M., Mikayelyan, G. A.

“…The UV properties of 1152 Markarian galaxies have been investigated based on GALEX data. These objects have been investigated also in other available…”
Get full text

Activity Types of Galaxies Selected from an HRC/BHRC Sample. II by Paronyan, G. M., Mickaelian, A. M., Abrahamyan, H. V., Mikayelyan, G. A.

“…This is a detailed spectral classification of 198 candidate active galactic nuclei (AGN) from a joint HRC/BHRC sample consisting of a combination of the HRC…”
Get full text

Classification by Activity Type of a Sample of Active Galaxies with Radio Emission by Abrahamyan, H. V., Mickaelian, A. M., Paronyan, G. M., Mikayelyan, G. A.

“…This is a detailed spectral classification of 96 active galaxies from the Véron-Cetty and Véron catalog (2010, Version 13, VCV-13) of active galaxies and…”
Get full text

Large Astronomical Surveys, Catalogs and Databases by Mickaelian A. M.

“…We review the status of all-sky and large astronomical surveys and their catalogued data over the whole range of electromagnetic spectrum, from gamma-ray to…”
Get full text

Activity Types of Galaxies Selected from HRC/BHRC Sample by Paronyan, G. M., Mickaelian, A. M., Harutyunyan, G. S., Abrahamyan, H. V., Mikayelyan, G. A.

“…In this study we carry out detailed spectral classification of 173 AGN candidates from the Joint HRC/BHRC sample, which is a combination of HRC (Hamburg-ROSAT…”
Get full text

Spectral Observations of BIG Objects. III by Mickaelian, A M

“…Results of spectral observations of 66 objects from the BIG (Byurakan IRAS Galaxies) sample made with the 1.93 m telescope at the Observatoire de Haute…”
Get full text

Spectral study of BIG objects on the 2.6-m telescope at the Byurakan astrophysical observatory by Sargsyan, L. A., Mickaelian, A. M.

“…Results of spectral observations of 45 objects from the BIG sample (corresponding to 35 IRAS sources) obtained on the 2.6-m telescope at the BAO are reported…”
Get full text