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Перегляд Advances in Astronomy and Space Physics за назвою

Репозиторій DSpace/Manakin

Перегляд Advances in Astronomy and Space Physics за назвою

Сортувати за: Порядок: Результатів:

  • Earth's pole coordinates determined from Lageos-1/2 laser ranging 
    Zhaborovskyy, V.P.; Choliy, V.Ya. (Advances in Astronomy and Space Physics, 2014)
    The Earth's pole coordinates, obtained from satellite laser ranging data of Lageos-1 and Lageos-2 are presented. The procedure, used models and algorithms are described. Results are compared with similar series from IERS database.
  • Ecospheres around binary stars 
    Deka, B. (Advances in Astronomy and Space Physics, 2011)
    Scientific investigations concerning ecospheres of other stars are very important for understanding the posibilities of existence and evolution of extraterrestrial life. In several last years astronomers discovered hundreds ...
  • Effects of equatorial chorus wave normal azimuthal distribution on wave propagation 
    Breuillard, H.; Mendzhul, D.I.; Agapitov, O.V. (Advances in Astronomy and Space Physics, 2012)
    The non-ducted propagation characteristics of the VLF waves in the inner magnetosphere were studied with respect to their frequency, source localization, and initial polar angle between the wave-normal and the background ...
  • Electromagnetic radiation of superconducting cosmic strings 
    Rogozin, D.A.; Zadorozhna, L.V. (Advances in Astronomy and Space Physics, 2013)
    Cosmic strings are relics of the early Universe which can be formed during the phase transitions of fields with spontaneously broken symmetry in the early Universe. Their existence finds support in modern superstrings ...
  • Electronic catalogue of the cometary physical characteristics 
    Andrienko, J.; Reshetnyk, V. (Advances in Astronomy and Space Physics, 2012)
    Lack of the new catalogues of the physical characteristics of comets (the last one was published in 1985) was the reason of our work. Vsehsvyatskiy and Andrienko catalogues of the physical characteristics of comets from ...
  • Estimation of the flux tube diameters outside sunspots using Hinode observations. Preliminary results 
    Botygina, O.O.; Gordovskyy, M.Yu.; Lozitsky, V.G. (Advances in Astronomy and Space Physics, 2016)
    Indirect estimations of diameters of the smallest flux tubes outside sunspots are made using SOT/Hinode observations of Fei 6301.5 and 6302.5 lines. These estimations are based on the comparison of measured effective ...
  • Estimations of angles between some axes in radio pulsars from catalog at 1000 MHz 
    Nikitina, E.B.; Malov, I.F. (Advances in Astronomy and Space Physics, 2011)
    There are some known theoretical models used for investigations of pulsars at present. One of the most important parameters for the check of existing pulsar models is the angle β between an axis of an emission cone (a ...
  • Evolution of density and velocity profiles of matter in large voids 
    Tsizh, M.; Novosyadlyj, B. (Advances in Astronomy and Space Physics, 2016)
    We analyse the evolution of cosmological perturbations which leads to the formation of large voids in the distribution of galaxies. We assume that perturbations are spherical and all components of the Universe - radiation, ...
  • Exoplanet plenitude 
    Martín, E.L. (Advances in Astronomy and Space Physics, 2012)
    The main aim of the present paper is to give a brief overview of the revolution in exoplanet discoveries which started about two decades ago and the new concepts and perspectives that these observational findings have ...
  • Explosive evolution of galaxies at high redshifts due to minor mergers 
    Kats, A.V.; Kontorovich, V.M. (Advances in Astronomy and Space Physics, 2013)
    In the case of minor mergers analytical solutions of kinetic Smoluchowski equation with a source that corresponds to separation of galaxies from the general expansion of the universe have been found. The solutions describe ...
  • Extragalactic filament detection with a layer smoothing method 
    Tugay, A.V. (Advances in Astronomy and Space Physics, 2014)
    Filaments are clearly visible in galaxy distributions, but they are dificult to detect by computer algorithms. Most methods of filament detection can be used only with numerical simulations of a large-scale structure. New ...
  • Fast-growing sunspot groups AR1618, AR1619, AR1620, AR1640 and their features 
    Fursiak, Yu.A. (Advances in Astronomy and Space Physics, 2013)
    The paper considers evolutionary features of fast-growing sunspot groups AR1618, AR1619, AR1620, and AR1640. The study consists of the analysis of magnetic fields, movements of the solar atmosphere at different levels, and ...
  • Fast radio bursts as electromagnetic radiation from cusps on superconducting cosmic strings 
    Zadorozhna, L.V. (Advances in Astronomy and Space Physics, 2015)
    Cosmic strings are topological defects, relicts of the early Universe, which can be formed during phase transitions of fields with spontaneous broken symmetry. There also exists a special class of cosmic strings - ...
  • Formal estimation of the random component in global maps of total electron content 
    Choliy, V.Ya. (Advances in Astronomy and Space Physics, 2016)
    Random component of the total electron content (TEC) maps, produced by global navigation satellite system processing centres, was analysed. Helmert transform (HT) and two-dimension singular spectrum analysis (2dSSA) were ...
  • Frequency drift rates of powerful decameter Type III bursts 
    Boiko, A.I.; Mel'nik, V.N.; Konovalenko, A.A.; Rucker, H.O.; Abranin, E.P.; Dorovskyy, V.V.; Lecacheux, A. (Advances in Astronomy and Space Physics, 2011)
    We report on the observations of powerful (fluxes are larger than 10⁻¹⁹ W m⁻² Hz⁻¹) solar Type III bursts at frequencies 10 − 30 MHz. Recordings of 163 bursts, observed in July 2002 and of 231 bursts observed in August ...
  • Geometry of highly inclined protoplanetary disks 
    Zakhozhay, O.V.; del Burgo, C.; Zakhozhay, V.A. (Advances in Astronomy and Space Physics, 2015)
    We present a geometric model for the modelling of spectral energy distribution of inclined protoplanetary disks. We investigate peculiarities in the geometry of nearly edge-on disks with an inner hole and a central object. ...
  • Gravitational lens equation: critical solutions and magnification near folds and cusps 
    Alexandrov, A.N.; Koval, S.M.; Zhdanov, V.I. (Advances in Astronomy and Space Physics, 2012)
    We study approximate solutions of the gravitational lens equation and corresponding lens magnification factor near the critical point. This consideration is based on the Taylor expansion of the lens potential in powers of ...
  • High-frequency variations of hydrogen spectral lines in the B3V star η UMa 
    Pokhvala, S.M. (Advances in Astronomy and Space Physics, 2015)
    We reported the detection of high-frequency variations in the hydrogen Balmer lines in the hot star η UMa of spectral class B3V. Spectral observations of η UMa were carried out with slitless spectrograph (R ∼ 100) installed ...
  • High-speed multicolour photometry with CMOS cameras 
    Pokhvala, S.M.; Zhilyaev, B.E.; Reshetnyk, V.M. (Advances in Astronomy and Space Physics, 2012)
    We present the results of testing the commercial digital camera Nikon D90 with a CMOS sensor for high-speed photometry with a small telescope Celestron 11ʺ at the Peak Terskol Observatory. CMOS sensor allows to perform ...
  • Identification of the ~3.55 keV emission line candidate objects across the sky 
    Savchenko, D.O.; Iakubovskyi, D.A. (Advances in Astronomy and Space Physics, 2015)
    An emission line at the energy ∼3.55 keV detected in different galaxies and galaxy clusters has caused numerous discussions in high-energy astrophysics and particle physics communities. To reveal the origin of the line, ...

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