Галузь і проблематика: розміщення наукових статей з питань астрономії, астрофізики, космічних досліджень, а також матеріалів конференцій, які організовуються і проводяться за участю НДІ «Астрономічна обсерваторія» Одеського національного університету імені І. І. Мечникова DOI 10.18524/1810-4215 Сайт видання: http://oap.onu.edu.ua/

Останні додані

  • Ukrainian database and Atlas of light curves of artificial space objects 

    Koshkin, Nikolay I.; Savanevych, V.; Pohorelov, A.; Shakun, Leonid S.; Zhukov, V. V.; Korobeinikova, E. A.; Strakhova, S. L.; Moskalenko, Sergiy; Kashuba, V. I.; Krasnoshchokov, A. (Одеський національний університет імені І. І. Мечникова, 2017)
    This paper describes the Ukrainian database of long-term photometric observations of resident space objects (RSO). For the purpose of using this database for the outer space monitoring and space situational awareness ...
  • On the Digitisation of Odessa collection of astronomical negatives. Examination of the Epson Perfection V700 photo scanner 

    Kashuba, S.; Andruk, V. N.; Kashuba, V. I. (Одеський національний університет імені І. І. Мечникова, 2017)
    This study was aimed to estimate the precision of the selected plate processing method and test the accuracy of the Epson Perfection V700 Photo scanner used to digitize astroplates from the Odessa Astronomical Observatory’s ...
  • Pulsational activity of The Small-amplitude Cepheid polaris (a UMi) in 2016-2017 

    Usenko, I. A.; Kovtyukh, Valery V.; Miroshnichenko, A. S.; Danford, S. (Одеський національний університет імені І. І. Мечникова, 2017)
    We present the results of an analysis of 49 spectra of а UMi (Polaris) obtained during August – December 2016 and January – March 2017. Frequency analysis displays an unexpected decrease of the pulsational period up ...
  • Resonances in Saturn’s system 

    Voitko, А. S.; Troianskyi, V. V. (Одеський національний університет імені І. І. Мечникова, 2017)
    One of principal tasks of celestial mechanics is study of motion of natural satellites of planets. In this work, the authors have examined resonances in system of satellites and rings of Saturn. They have showed presence ...
  • Spectroscopical study of faint Southern Cepheids with Southern African Large Telescope (SALT). First results. 

    Usenko, I. A.; Kniazev, A. Yu.; Kovtyukh, Valery V.; Belik, S. I.; Berdnikov, L. N. (Одеський національний університет імені І. І. Мечникова, 2017)
    First Cepheids observations using echelle-spectrograph HRS fed by Southern African Large Telescope (SALT) were realized during 2016. All spectra have been obtained in the medium resoltion mode (R 31000–41000) wth high ...
  • Photometry and Blazhko effect in RR LYR-Type star AE Leo 

    Udovichenko, S. N.; Keir, L. E. (Одеський національний університет імені І. І. Мечникова, 2017)
    The photometric observations for the RR Lyr-type star AE Leo in the Astronomical station near Odessa using the 48-cm reflector AZT-3 and the CCD photometer equipped with the V filter have been carried out. The light ...
  • Effects of the mass transfer and presence of the third components in close binary stellar systems 

    Tvardovskyi, D. E.; Marsakova, V. I.; Andronov, Ivan L. (Одеський національний університет імені І. І. Мечникова, 2017)
    In our research, we have studied 6 close binary stellar systems which are eclipsing variables of β Lyrae and W Ursae Majoris types of variability. We have studied their O-C curves. To build them, we used moments of ...
  • Improved ephemeris of poorly studied eclipsing binary GSC 3950-00707 = 2MASS J20355082+5242136 

    Savastru, S. V.; Marsakova, V. I.; Andrych, K. D.; Dubovsky, P. A. (Одеський національний університет імені І. І. Мечникова, 2017)
    We made our CCD-observations of GSC 3950-00707 by using the telescope Celestron-14 of Vihorlat Observatory and Astronomical Observatory on Kolonica Saddle. The moments of minima were calculated by using the symmetrical ...
  • The peculiarities in O-type Galaxy clusters 

    Panko, E. A.; Emelyanov, S. I. (Одеський національний університет імені І. І. Мечникова, 2017)
    We present the results of analysis of 2D distribution of galaxies in galaxy cluster fields. The Catalogue of Galaxy Clusters and Groups PF (Panko & Flin) was used as input observational data set. We selected open rich ...
  • 3D numerical hydrodynamical models of the precessing thick accretion disk and ON- and OFF-state generations in microquasars 

    Nazarenko, V. V.; Nazarenko, S. V. (Одеський національний університет імені І. І. Мечникова, 2017)
    The thick accretion disk and donor’s wind on the example of CYG X-1 are computed. The main aim of the present simulations is to calculate the precessing thick accretion disk and ON- and OFF-state generation by the ...
  • Three giants – members of The Open cluster M 67 

    Mishenina, T. V.; Klochkova, V. G.; Panchuk, V.; Basak, N. Yu.; Kovtyukh, Valery V.; Korotin, S. A.; Velichko, A. (Одеський національний університет імені І. І. Мечникова, 2017)
    We determined the atmospheric parameters and chemical composition of the three giants, which are members of the open cluster M 67. The high resolution spectra (R = 60 000) were obtained with the echelle spectrograph ...
  • Synthesis of magnetized nuclei at Supernova explosion 

    Kondratyev, V. N.; Nurtayeva, U. M.; Zhomartova, A. Zh.; Mishenina, T. V. (Одеський національний університет імені І. І. Мечникова, 2017)
    Influence of magnetorotational instabilities in astrophysical plasma at supernova explosion on synthesis of chemical elements is investigated. At field strength less than 10 teratesla nuclear magnetic susceptibility exhibits ...
  • Molybdenum and Ruthenium abundances in Cool stars of the Galactic DISC 

    Gorbaneva, Tatyana I.; Mishenina, T. V. (Одеський національний університет імені І. І. Мечникова, 2017)
    We revise the molybdenum and ruthenium abundances in FGK stars with metallicities ranging from −1.0 < [Fe/H] < +0.3. The observed stars belong to the substructures of the Galaxy. The observations were conducted using ...
  • Ionisation loss and shock excitation of 44/20 Са I and 44/20 Са II atoms in cold remnants of type II supernovae 

    Doikov, D. N.; Andriievskyi, Serhii M. (Одеський національний університет імені І. І. Мечникова, 2017)
    The light emission (“glow”) of cold dusty plasma of the remnant of SN1987A was confirmed by the Hubble Space Telescope observations on 7th January, 1995. In particular, Ca I and Ca II lines were recorded and identified ...
  • Statistically optimal modeling of Flat eclipses and Exoplanet transitions. The “Wall-Supported polynomial” (WSP) algoritms 

    Andrych, K. D.; Andronov, Ivan L.; Chinarova, L. L. (Одеський національний університет імені І. І. Мечникова, 2017)
    The methods for determination of the characteristics of the extrema are discussed with an application to irregularly spaced data, which are characteristic for photometrical observations of variable stars. We introduce new ...
  • Zirconium abundances in the Central part of the dSph Fornax galaxy 

    Andriievskyi, Serhii M.; Korotin, S. A.; Hill, V.; Zhukova, A. V. (Одеський національний університет імені І. І. Мечникова, 2017)
    We derived LTE zirconium abundance in a sample of 81 giant stars in dwarf spheroidal Fornax galaxy. The LTE synthesis was used for this aim. We obtained the lower Zr abundance in Fornax galaxy comparing to the relevant ...
  • Photometry and modulation of light curves in the Blazhko star V365 HER 

    Udovichenko, S. N. (Одеський національний університет імені І. І. Мечникова, 2015)
    The photometric CCD observations for the Blazhko RR Lyr type star V365 Her in Astronomical stations near Odessa (Ukraine) have been carried out. The light curves in V system were obtained and the frequency Fourier ...
  • Effect of non-sphericity of gravitational field of the asteroid on the its satellites orbits evolution 

    Troianskyi, V. V. (Одеський національний університет імені І. І. Мечникова, 2015)
    Lately it has become possible to sufficiently precise definition of the physical and geometric characteristics of asteroid systems using radar observations (http://echo.jpl.nasa.gov/~lance/binary.neas.html), which allowed ...
  • Revision of the phenomenological characteristics of the algol-type stars using the nav algorithm 

    Tkachenko, M. G.; Andronov, Ivan L.; Chinarova, L. L. (Одеський національний університет імені І. І. Мечникова, 2015)
    Phenomenological characteristics of the sample of the Algol – type stars are revised using a recently developed NAV (“New Algol Variable”) algorithm (2012Ap.....55..536A, 2012arXiv 1212.6707A) and compared to that ...

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