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/

Recent Submissions

  • Features of Kotlin orbit estimation library 

    Shakun, Leonid S.; Шакун, Леонід С. (Одеський національний університет імені І. І. Мечникова, 2018)
    Since the launch of Sputnik 1, the number of objects in near-earth orbit has been constantly increasing. The growth of number of these objects increases the risk of their collisions with existing satellites and ones which ...
  • Monitoring of space debris rotation based on photometry 

    Koshkin, Nikolay I.; Shakun, Leonid S.; Korobeinikova, E. A.; Melikyants, S. M.; Strakhova, S. L.; Dragomiretsky, V. V.; Ryabov, A. V.; Golubovskaya, T. A.; Terpan, S. S.; Кошкин, Николай Иванович; Кошкін, Микола Іванович (Одеський національний університет імені І. І. Мечникова, 2018)
    The number of spacecraft and space debris (SD) in orbit has become so great that there is a real threat to flight safety. The task of precision calculation of the upcoming positions of any space objects (SO) in orbit in ...
  • The existence of groups of meteorite-producing fireballs and meteorites in comet-like orbits 

    Konovalova, N. A.; Gorbanev, Yuriy M.; Davruqov, N. H. (Одеський національний університет імені І. І. Мечникова, 2018)
    This paper discusses the existence of groups of meteorite-producing fireballs and ordinary chondrites in the Earth-crossing Jupiter-family comet-like (JFC) orbits. The similarity of the orbits of meteoriteproducing fireballs ...
  • External comparison satellite positions obtained by the network of passive correlation ranging of geostationary telecommunication satellites 

    Bushuev, F. I.; Kaliuzhnyi, M. P.; Mazhaev, O.; Shulga, O. V.; Shakun, Leonid S.; Bezrukovs, Vladislavs; Reznichenko, O.; Moskalenko, Sergiy; Malynovskyi, Ye. (Одеський національний університет імені І. І. Мечникова, 2018)
    Network of passive correlation ranging contains of five stations located in Ukraine and Latvia. It has been created at the initiative of the RI “Mykolaiv Astronomical Observatory” to have independent means to track the ...
  • Algorithms of multi frequency radiometry in the conditions of broadband interference 

    Orlov, V. V.; Lytvynenko, O. A.; Galanin, V. V. (Одеський національний університет імені І. І. Мечникова, 2018)
    The development of digital technologies for multi-frequency signal reception in the low-frequency range creates the prerequisites for the application of optimal algorithms for real-time beamforming without changing the ...
  • Radio telescope Uran-4 and the problem of radio interference 

    Galanin, V. V.; Lytvynenko, O. A.; Derevyagin, V. G.; Kravetz, R. O. (Одеський національний університет імені І. І. Мечникова, 2018)
    The URAN-4 decameter radio telescope, which is located in the village of Mayaki of the Odessa region, is an element of system of the URAN radio telescopes (Ukrainian Radiointerferometer of the Academy of Sciences). The ...
  • Spectroscopic investigations of Galactic clusters with associated cepheid variables II NGC 5662 and V CEN 

    Usenko, I. A.; Kniazev, A. Yu.; Kovtyukh, Valery V.; Mishenina, T. V.; Miroshnichenko, A. S.; Turner, D. G.; Protsyuk, Yu. I. (Одеський національний університет імені І. І. Мечникова, 2018)
    We present the results of a spectroscopic and photometric investigation of 15 objects from the open cluster NGC 5662, which contains the Cepheid V Cen. Besides the Cepheid, we studied one G-supergiant, two K-giants, four ...
  • On the irregular variations in the light curves of RY Vul 

    Udovichenko, S. N.; Keir, L. E.; Удовиченко, С. Н.; Кеір, Л. Є. (Одеський національний університет імені І. І. Мечникова, 2018)
    In the Astronomical observatory of the Odesa National University traditionally study variable stars of different types: pulsating, double, irregular et al. By photometric observations it is possible to set the type of ...
  • Molybdenum abundance in some open clusters 

    Shereta, E. P.; Carraro, G.; Gorbaneva, Tatyana I.; Mishenina, T. V.; Шерета, Е. П.; Карраро, Ж.; Горбаньова, Тетяна І.; Мишенина, Т. В. (Одеський національний університет імені І. І. Мечникова, 2018)
    This paper presents the results of determination of the molybdenum abundances in 13 G, K type stars in the open clusters NGC 2477 and NGC 2506. The abundances of molybdenum were determined using stellar atmosphere models ...
  • The dependence of on- and off-state generations in classical microquasars from the disk density. 3-D numerical hydrodynamical simulations of the high and low mass accretion rate in accretion disk in microquasar CYG X-1 

    Nazarenko, V. V.; Назаренко, В. В. (Одеський національний університет імені І. І. Мечникова, 2018)
    In the present work we have computed and have compared the on- and off- generations in low and high mass accretion rate accretion disks. The comparison shows that in the case of low mass accretion rate in disk (10~10 solar ...
  • Detailed morphology of the rich concentrated Galaxy Clusters 

    Panko, Olena O.; Sirginava, A.; Stepaniuk, A.; Панько, Елена Алексеевна; Сиргинава, А.; Степанюк, А.; Панько, Олена Олексіївна (Одеський національний університет імені І. І. Мечникова, 2018)
    The results of the detailed analysis of the 2D distribution of galaxies in 28 rich galaxy clusters with significant concentration to the cluster center are present. The analysis was executed in these directions: the detection ...
  • Status refinement of metal-poor star HD 6268 

    Mishenina, T. V.; Usenko, I. A.; Kniazev, A. Yu.; Kovtyukh, Valery V.; Мишенина, Т. В.; Усенко, І. А.; Князев, А. Ю.; Ковтюх, Валерій В. (Одеський національний університет імені І. І. Мечникова, 2018)
    Metal-poor stars in the Galaxy enable observations of the light and neutron-capture (n-capture) elements produced by their progenitors and deduction of the characteristics of the early Galaxy from the elemental abundances ...
  • Molybdenum and ruthenium in the Galaxy 

    Mishenina, T. V.; Gorbaneva, Tatyana I.; Мишенина, Т. В.; Горбаньова, Тетяна І. (Одеський національний університет імені І. І. Мечникова, 2018)
    We present a brief overview of the molybdenum and ruthenium present-day nucleosynthesis calculations and abundance determinations in stars belonging to different substructures (populations) in the Galaxy. The following ...
  • Hafnium abundances in fgk dwarf of galactic disk 

    Gorbaneva, Tatyana I.; Mishenina, T. V.; Горбаньова, Тетяна І.; Мишенина, Т. В. (Одеський національний університет імені І. І. Мечникова, 2018)
    In this work we present new observational data for hafnium (72). Hf is an important element that is between the lightest rare-earth elements (e.g., La, Z = 57) with elements of the third r-process peak (Os, Ir, Pt, Z ...
  • 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.; Кошкин, Николай Иванович; Кошкін, Микола Іванович (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 ...

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