Marat Arakelian Explained

Honorific Prefix:Dr.
Marat Arsen Arakelian
Native Name:Մարատ Արսենի Առաքելյան
Native Name Lang:Armenian
Birth Date:15 January 1929
Birth Place:Goris, Armenian SSR, USSR
Death Place:Moscow, USSR
Resting Place:Byurakan, Armenia
Nationality:Armenian
Fields:Astrophysics
Thesis1 Title:Spectrophotometric investigation of Algol
Thesis2 Title:Spectral observations and statistics of galaxies with active nuclei
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Thesis1 Year:1956
Thesis2 Year:1977
Doctoral Advisor:Dr. Oleg Aleksandrovich Melnikov
Known For:Arakelian catalog of high-surface-brightness galaxies
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Marat Arsen Arakelian (Armenian: Մարատ Արսենի Առաքելյան)[1] (15 January 1929  - 20 January 1983) was an Armenian astronomer. Arakelian was a specialist in theoretical astrophysics and extragalactic astronomy. He is most noted for his catalog of “Galaxies of high surface brightness” (named Arakelian galaxies, Akn), a list of 621 objects with surface brightness at least 22.0 magnitude from an area of 1 sq. arc second. The Arakelian catalog has become a source in the study of active galactic nuclei.

Early life and education

Arakelian was born in Goris, Syunik Province in the Armenian Soviet Socialist Republic, a Soviet republic (now the Republic of Armenia). He attended the Yerevan State University (YSU) in the Physical-Mathematical Department and graduated in 1951. He was among the first YSU students specialized in astrophysics. Arakelian was assigned to the Byurakan Astrophysical Observatory (BAO), where he worked first as assistant astronomer, and later as junior research associate. His postgraduate study at Leningrad State University (now Saint Petersburg State University, St. Petersburg) was completed in 1955, and in 1956 he successfully defended his Ph.D. thesis “Spectrophotometric investigation of Algol” under the supervision of Prof. Oleg Aleksandrovich Melnikov at LSU.[2]

Career

From 1957 to 1959, Arakelian combined his work with a senior teacher position at the Department of Astrophysics at Yerevan State University. Aralekian was a junior researcher and lectured at the Leningrad State University from 1960 to 1966. After being awarded the title of Associate Professor in 1966, Arakelian again joined the staff at Byurakan Astrophysical Observatory, combining his research with a position as lecturer at Yerevan. Together with L.V. Mirzoyan, A.T. Kalloghlian, and H.M. Tovmassian, he was the co-author of the textbook Astronomy for secondary schools (three editions in 1970, 1971, and 1973).[3] In 1967, he became a senior researcher at the Byurakan Astrophysical Observatory. In 1977, Arakelian defended his second doctoral thesis "Spectral observations and statistics of galaxies with active nuclei" at Moscow State University (MSU) and became a Doctor of Sciences. In 1982, he was elected the Chair of the Department of Astrophysics and Theoretical Physics of the Armenian State Pedagogical University named after Khachatur Abovian. Arakelian wrote an extended review on “Clusters of galaxies” in the book Problems of Extragalactic Astronomy (1981). Prior to his death at the age of 54 on 20 January 1983 in Moscow, Arakelian devoted himself to research, publishing over 80 articles.

Bibliography

Honors

See also

Notes and References

  1. Web site: Marat Arakelian . Encyclopedia of the Foundation Hayazg . 25 August 2020.
  2. Web site: Marat Arakelian . Armenian Astronomical Society - Հայ աստղագիտական հասարակություն . Armenian Astronomical Society . 25 August 2020.
  3. Book: Աստղագիտություն : Ձեռնարկ միջն. դպր. 10-րդ դաս. համար (Astronomy. Manual for 10th grade of secondary schools) . ՀԱՅ ԳԻՐՔ (Armenian Book) . 1971 . Հայաստանի Ազգային Գրադարան (National Library of Armenia) . 25 August 2020.

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