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Book Dedicated To Armenian Astronomer Benyamin Markarian Published

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  • Book Dedicated To Armenian Astronomer Benyamin Markarian Published

    BOOK DEDICATED TO ARMENIAN ASTRONOMER BENYAMIN MARKARIAN PUBLISHED

    15:09, 24 October, 2013

    YEREVAN, OCTOBER 24, ARMENPRESS. "Edit-Print" Publishing House has
    published a 28-pages book on the occasion of the 100th anniversary
    of prominent Armenian astronomer Benyamin Markarian. The Armenian
    Astronomical Union informed "Armenpress" that the book introduces
    the outstanding astronomer's biography and description of his works.

    Very few astronomers with their contribution in the observational
    astronomy can be compared with Benyamin Markarian. After the
    distinguished scientist Viktor Ambartsumian he is very likely the
    greatest person of Armenian astronomy. His survey and Markarian
    galaxies are known to each astronomer and not only to astronomers. So
    far many astronomers and world observatories work on investigations
    of Markarian galaxies.

    Benyamin Y. Markarian was born on November 29, 1913 (according to
    the new style, on December 12) in Shulaver (at present Shahumyan) of
    the district of Marnueli of the Soviet Republic of Georgia. In 1933
    he entered and in 1938 with a diploma of excellence graduated from
    the faculty of physics-mathematics of Yerevan State University. In
    1938-1941 he worked as a senior lecturer of higher mathematics at
    Yerevan Pedagogical Institute. In 1939 B. Markarian entered the
    post-graduate fellowship of the Armenian branch of the USSR Academy
    of Sciences in the sphere of astrophysics and went to Leningrad
    University. But his studies were interrupted by World War II and in
    1941 after returning to Armenia he was called up to the Army. After the
    Army he was a senior researcher at the Yerevan Astronomical Observatory
    (1942-1946). In May 1944 under the academician V. Ambartsumian's
    supervision Markarian successfully defended his candidate thesis on a
    subject "The fluctuations observed in the visible distribution of stars
    and the cosmic absorption". Since 1946 (since the day of foundation)
    he was a senior researcher at the Byurakan Astrophysical Observatory,
    in fact being one of its founders.

    Markarian actively participated in the selection of the site of the
    new observatory, which needed serious work for further effective
    observations. Markarian personally mounted and put almost all
    telescopes of the Byurakan Observatory into operation (except the
    last telescope of 2.6 m), thus making basis for the development of
    observational astronomy in Armenia.

    In 1953-1956 Markarian worked as a deputy director on science of the
    Byurakan Observatory. He was appointed as the Head of the Department
    of Investigation of Stars from 1957 to 1962, then of the Department
    of Galaxies from 1962 to 1985. In 1943-1956 he also worked as a
    lecturer of astronomy at Yerevan State University. He was elected as
    a corresponding member of the Academy of Sciences of the Armenian SSR
    (1965), as a full member of the Academy of Sciences of the Armenian SSR
    (1971). He was awarded a title of Honored Scientist of the Armenian SSR
    (1961). Markarian was elected as a member of Astronomical Council of
    the USSR Academy of Sciences (1964), he a member of the International
    Astronomical Union (IAU, 1955), he was elected as a Vice-President
    of the IAU Commission on Galaxies (1973-1976) and its President
    (1976-1979).

    B. Markarian's scientific works refer to the physics of stars,
    stellar clusters and galaxies. He took part in working out of the
    theory of fluctuations observed in the distribution of stars taking
    into consideration the interstellar absorption. On the basis of
    observational data he has confirmed that the stellar associations
    expand. Markarian has worked out a new classification of stellar
    clusters and in 1952 he has compiled and published "An atlas of
    different types of stellar clusters". In 1963 he revealed 73 galaxies
    with an unusual color to their spectral class. He has worked out
    a special method (for selecting galaxies with ultra-violet excess)
    on the basis of which 1965-1980 a spectral sky survey was obtained
    in the Byurakan Observatory. He has revealed 1500 objects of special
    class which are called by his name (Markarian galaxies or galaxies with
    ultra-violet excess). Since 1968 with the help of large telescopes of
    the USSR and the USA, spectral observations of these galaxies were
    carried out and a great number of active galaxies were discovered
    among them essentially changing our understanding concerning the
    population of the Universe and the activity of galaxies. Later from
    1974 to 1991 again on Markarian's initiative the Second Byurakan
    Survey was conducted in which a great number of quasars and other
    active galactic nuclei were revealed.

    The catalogue of Markarian galaxies was published after his death by
    his colleagues in the USA in 1986 and in the USSR in 1989.

    B. Markarian has published more than 100 scientific papers. He is a
    USSR State Prize winner (1950). He was awarded the orders "Sign of
    Honor" (1955) and "Peoples' Friendship" (1983), as well as a number
    of medals and diplomas of the Presidiums of the Academies of Sciences
    of the USSR and the Armenian SSR and of the Supreme Council of the
    Armenian SSR.

    Benyamin Markarian passed away on September 29, 1985 in Yerevan. Till
    the end of his life, in spite of his poor health, he actively worked
    doing the main job of his scientific life; the Byurakan Surveys.

    http://armenpress.am/eng/news/737664/book-dedicated-to-armenian-astronomer-benyamin-markarian-published.html



    From: Emil Lazarian | Ararat NewsPress
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