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Arakelian, M. A.; Kritsuk, A.G. (1981) “Study of the estimations of the kinetic energies of clusters of galaxies; the extent to which a kinetic energy estimate would be affected by a possible mass dependence of the velocity dispersion of galaxies in clusters was considered. It was concluded that in
340:
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
345:
for secondary schools (three editions in 1970, 1971, and 1973). 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
41:
341:
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
595:
The 621 galaxies in his catalog of galaxies with high surface brightness are designated as “Arakelian galaxies” and carry the designation “ARK” or “Akn” such as galaxies ARK 120 (Akn 120, UGC 03271) and ARK 564 (Akn 564, UGC
260:. 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
463:
Arakelian, M. A. (1974) “Analysis of the surface brightness of emission-line galaxies (including
Seyfert and Markarian ones) and development of a method for revealing galaxies with high surface brightness”
930:
495:
Arakelian, M. A.; Dibai, E.A.; Esipov, V.F. (1975) “Spectroscopic observations and studies of
Arakelian galaxies (galaxies with high surface brightness) and discovery of new Seyferts among them”
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Arakelian, M. A. (1983) “Proposing a method for construction of the luminosity function of the components of double galaxies on the basis of an arbitrary sample of pairs of galaxies”
453:
Arakelian, M. A.; Dibai, E.A.; Esipov, V.F. (1973) “Spectroscopic observations and studies of a few hundred
Markarian galaxies and discovery of more than 40 new Seyferts among them”
925:
531:
Arakelian, M. A.; Kojoian, G.; Dickinson, D.F.; Elliott, R.; Bicay, M.D. (1981) “Radio (6cm) observations of
Arakelian galaxies and publication of their accurate positions”
470:
Arakelian, M. A. (1973) “Suggestion of a new method for definition of space density of extragalactic objects and estimation of the mean density of matter in the
Metagalaxy”
320:(now Saint Petersburg State University, St. Petersburg) was completed in 1955, and in 1956 he successfully defended his Ph.D. thesis “Spectrophotometric investigation of
915:
568:
Arakelian, M. A. (1986) “A method for the determination of the bivariate luminosity function utilizing an incomplete sample with an application to
Seyfert galaxies”
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Arakelian, M. A.; Kandalyan, R.A. (1980) “Study of the relation between the mean surface brightness and radio emission of galaxies, including
Seyfert galaxies”
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Arakelian, M. A.; Mahtessian, A.P. (1982) “Comparative study and statistics of the surface brightness and morphological types of isolated and double galaxies”
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Arakelian, M. A. (1976) “Study of the dependence of the emission-line intensities of Markarian and Seyfert galaxies on their color index”
350:(MSU) and became a Doctor of Sciences. In 1982, he was elected the Chair of the Department of Astrophysics and Theoretical Physics of the
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Arakelian, M. A. (1975) “Derivations of the luminosity function and space density of galaxies with UV continuum (Markarian galaxies)”,
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Prior to his death at the age of 54 on 20 January 1983 in Moscow, Arakelian devoted himself to research, publishing over 80 articles.
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Arakelian, M. A. (1969-1970) “Study of the luminosity evolution of quasars based on the evolutionary effects associated with them”.
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119:
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Arakelian, M. A.; Terebizh, V.Yu. (1982) “Study of Seyfert galaxies in clusters and Seyfert properties of the cluster galaxies”
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316:(BAO), where he worked first as assistant astronomer, and later as junior research associate. His postgraduate study at
308:(YSU) in the Physical-Mathematical Department and graduated in 1951. He was among the first YSU students specialized in
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Arakelian, M. A. (1968) “Study of the luminosity function and the stellar space density in the solar neighbourhood”.
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Arakelian, M. A. (1978) “Study of the distribution of the mean surface brightness of galaxies in the Coma cluster”
730:Աստղագիտություն : Ձեռնարկ միջն. դպր. 10-րդ դաս. համար (Astronomy. Manual for 10th grade of secondary schools)
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Arakelian, M. A.; Kalloghlian, A.T. (1970) “Derivation of the luminosity function of field galaxies”
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and reported in the meeting “Stars and galaxies from observational points of view” in 1975.
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and reported at the conference “Non-periodic phenomena in variable stars” in 1969.
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Arakelian, M. A. (1969) “Statistical study of flare stars in the solar vicinity”.
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Arakelian, M. A.; Tovmasyan, H.M.; Mirzoyan, L.V.; Hambardzumyan, V.H. (1973).
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Arakelian, M. A. (1971) “The proof of the extragalactic origin of quasars.”
354:. Arakelian wrote an extended review on “Clusters of galaxies” in the book
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324:” under the supervision of Prof. Oleg Aleksandrovich Melnikov at LSU.
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Spectral observations and statistics of galaxies with active nuclei
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Armenian State Pedagogical University named after Khachatur Abovian
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733:. Հայաստանի Ազգային Գրադարան (National Library of Armenia). 1971
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Communications of the Konkoly Observatory, Communications of BAO
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Armenian Astronomical Society - Հայ աստղագիտական հասարակություն
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Arakelian, M. A. (1975) “Galaxies of high surface brightness”
403:). (A summary of these works was published in the journal
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Academic staff of Armenian State Pedagogical University
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some cases the kinetic energy might be underestimated”
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Arakelian catalog of high-surface-brightness galaxies
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264:at least 22.0 magnitude from an area of 1 sq.
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592:(IAU), and joined Commission #28 “Galaxies”.
926:Academic staff of Yerevan State University
588:In 1973, Arakelian became a member of the
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624:Encyclopedia of the Foundation Hayazg
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578:(Third ed.). Yerevan, Armenia: Luys.
409:in 1970 vol. 225, p. 358-359.)
272:has become a source in the study of
194:Spectrophotometric investigation of
356:Problems of Extragalactic Astronomy
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294:Armenian Soviet Socialist Republic
166:Byurakan Astrophysical Observatory
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590:International Astronomical Union
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312:. Arakelian was assigned to the
224:Dr. Oleg Aleksandrovich Melnikov
911:Yerevan State University alumni
706:. Armenian Astronomical Society
557:Письма в Астрономический журнал
440:Bulletin of the USSR Acad. Sci.
921:Moscow State University alumni
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545:Soviet Astronomical Circular
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549:Soviet Astronomy Letters
401:Астрономический циркуляр
306:Yerevan State University
280:Early life and education
251:Марат Арсенович Аракелян
171:Yerevan State University
115:Yerevan State University
854:Active galactic nucleus
844:Moscow State University
348:Moscow State University
125:Moscow State University
901:Soviet astrophysicists
429:Астрономический журнал
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284:Arakelian was born in
274:active galactic nuclei
243:Մարատ Արսենի Առաքելյան
33:Մարատ Արսենի Առաքելյան
570:Astrophysical Journal
478:Communications of BAO
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235:Marat Arsen Arakelian
26:Marat Arsen Arakelian
533:Astronomical Journal
64:, Armenian SSR, USSR
798:Soviet Union portal
485:1975SoByu..47....3A
304:). He attended the
302:Republic of Armenia
16:Armenian astronomer
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262:surface brightness
896:People from Goris
849:Arakelian catalog
700:"Marat Arakelian"
620:"Marat Arakelian"
298:a Soviet republic
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75:(1983-01-20)
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382:Астрофизика
100:Nationality
880:Categories
601:References
266:arc second
258:astronomer
54:1929-01-15
757:ignored (
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737:25 August
710:25 August
629:25 August
576:Astronomy
343:Astronomy
300:(now the
95:, Armenia
770:See also
358:(1981).
255:Armenian
239:Armenian
103:Armenian
93:Byurakan
596:12163).
553:Russian
481:Bibcode
444:Russian
425:Russian
397:Russian
378:Russian
292:in the
247:Russian
583:Honors
406:Nature
328:Career
268:. The
210:(1977)
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201:(1956)
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186:Theses
149:Fields
83:, USSR
81:Moscow
322:Algol
286:Goris
196:Algol
62:Goris
759:help
739:2020
712:2020
631:2020
547:and
499:and
457:and
438:and
391:and
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48:Born
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