Multiwavelength Search and Studies of Active Galaxies and Quasars

Mickaelian, A. M.

doi:10.52526/25792776-2017.1-15

Cited by 3 publications

(1 citation statement)

References 73 publications

(28 reference statements)

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“…A pivotal factor driving this transformation has been the rise of multiwavelength (MW) observations, encompassing the electromagnetic spectrum from gamma rays to radio wavelengths. These observations have unlocked new horizons in our quest to understand the universe, offering insights that transcend the constraints of traditional astronomy [3]. This reference is drawn from [11].…”

Section: Introductionmentioning

confidence: 99%

Overview of Big Data Analytics in Modern Astronomy

Faaique

2023

ijmscs

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Astronomers are increasingly compelled to chart the universe with ever greater precision. Projects like the Sloan Digital Sky Survey (SDSS), Pan-STARRS, and the Large Synoptic Survey Telescope (LSST) generate approximately 100-200 Petabytes of data annually, presenting significant big data challenges in terms of storage, processing, and data transfer. The Square Kilometer Array (SKA), an ambitious project involving 130,000 antennas and 200 dishes spanning two continents, is scheduled to become operational in 2028. It will collect 160 terabytes of data per second, translating to 1 petabyte of data daily. Coping with this immense volume of data necessitates real-time processing and analysis, driving the need for efficient machine learning and image analysis algorithms. Astronomy stands as an ideal domain for big data analytics, pushing the boundaries of data analysis. This review paper will present intriguing applications for data scientists, exploring the challenges and recent technological advancements in big data analytics concerning astronomy. The paper will also critically assess the strengths and weaknesses of various approaches, methodologies, or tools used in big data analytics within the context of astronomy, supported by relevant case studies.

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Section: Introductionmentioning

confidence: 99%

Overview of Big Data Analytics in Modern Astronomy

Faaique

2023

ijmscs

View full text Add to dashboard Cite

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Studies of Active Galaxies in Byurakan: Recent Results

Mickaelian

Abrahamyan

Paronyan

et al. 2019

ComBAO

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We present the recent results of studies on active galaxies (both AGN and Starbursts) by the Extragalactic group of Byurakan Astrophysical Observatory (BAO) Research Department “Astronomical Surveys”. The research has been carried out in 2017-2019 and the results are published in 2018-2019. These studies are characterized by multiwavelength approach to statistical analysis of large amount of data obtained in different wavelengths; from X-ray to radio. Results on HRC/BHRC sample objects (optical identifications of ROSAT X-ray sources), studies of Markarian galaxies in UV and multiwavelength SEDs, abundance and star formation determinations in Mrk galaxies from SDSS spectra, revised optical classification of “LINERs”, study and classification of SDSS spectra for Byurakan-IRAS Galaxies, summary of observations and study of Byurakan-IRAS Galaxies (BIG objects), discovery of new bright ULIRGs from the IRAS PSC/FSC Combined Catalogue and their spectral classification, radio variable sources at 1400 MHz and their optical variability, classification of BZCAT objects having uncertain types (BZU objects), and optical variability of blazars are presented.

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Surveys for active galaxies: discovery and studies

Mickaelian

Abrahamyan

Paronyan

et al. 2020

ComBAO

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We present surveys and related studies of active galaxies carried out at the Byurakan Astrophysical Observatory (BAO). This was one of the main research subjects at BAO during many years, since mid-1950s, when Viktor Ambartsumian suggested the hypothesis of the activity of the galactic nuclei. A number of surveys and searches for Active Galactic Nuclei (AGN) and other active galaxies were accomplished during 1960s-1980s. Since mid-1990s, our research group carried out new surveys and studies of active galaxies based on the First Byurakan Survey (FBS or Markarian Survey) and then a number of others. Here we also present the recent results of studies on active galaxies (both AGN and Starbursts) by the Extragalactic group of the Byurakan Astrophysical Observatory (BAO) Research Department “Astronomical Surveys”. These studies are characterized by multiwavelength approach to statistical analysis of large amount of data obtained in different wavelengths; from X-ray to radio. A fine classification scheme for active galaxies has also been suggested.

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Multiwavelength Search and Studies of Active Galaxies and Quasars

Cited by 3 publications

References 73 publications

Overview of Big Data Analytics in Modern Astronomy

Overview of Big Data Analytics in Modern Astronomy

Studies of Active Galaxies in Byurakan: Recent Results

Surveys for active galaxies: discovery and studies

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