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Перегляд Advances in Astronomy and Space Physics, 2011, вип. 1-2 за назвою

Репозиторій DSpace/Manakin

Перегляд Advances in Astronomy and Space Physics, 2011, вип. 1-2 за назвою

Сортувати за: Порядок: Результатів:

  • Atomic hydrogen deficiency in spiral galaxies in clusters 
    Shaldenkova, E.S. (Advances in Astronomy and Space Physics, 2011)
    We consider the new method for atomic hydrogen deficiency estimations. The main idea is to use the empirical relation between total HI mass and specific angular momentum of the disk for isolated galaxies. The method was ...
  • Circular polarization of AGNs on the parsec VLBI scales 
    Vitrishchak, V.M.; Pashchenko, I.N.; Gabuzda, D.C. (Advances in Astronomy and Space Physics, 2011)
    Faraday effects possibly plays the major role in generation of circular polarization observed on Very Long Base Interferometry scales. Multi-frequency circular polarization measurementrs can become the desired breakthrough ...
  • Determination of the reference frames deflections from optical observations of GNSS satellites 
    Choliy, V.Ya.; Zhaborovskyy, V.P.; Taradiy, V.; Rykhlova, L. (Advances in Astronomy and Space Physics, 2011)
    Optical observations of navigation satellites were carried out at Terskol observatory during 2007-2010 with the aim to determine the deffection angles between GPS and GLONASS dynamical reference frames. There were three ...
  • Do BL Lacs lack the circular polarization? 
    Podorvanyuk, N.Yu.; Vitrishchak, V.M.; Pashchenko, I.N.; Gabuzda, D.C. (Advances in Astronomy and Space Physics, 2011)
    We present the first preliminary evidence of difference in the circular polarized emission between quasars and BL Lacs. BL Lac objects seem to lack the sources with high circular polarization degrees. It cannot be due to ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Infuence of low-frequency quasar 3C 273 radio spectrum on X-ray emission of its kiloparsec jet 
    Mykhailova, M.S.; Kontorovich, V.M. (Advances in Astronomy and Space Physics, 2011)
    In this paper the X-ray emission spectrum from the nearest to the quasar 3C 273 inner jet knot A was investigated by the kinetic equation method. It is shown that the inverse Compton scattering of the quasar radio emission ...
  • KyivGeodynamics++: software for processing satellite laser ranging data 
    Choliy, V.Ya.; Zhaborovskyy, V.P. (Advances in Astronomy and Space Physics, 2011)
    We present the software package KyivGeodynamics++ intended for processing satellite laser ranging data. Review of architecture, the main algorithms, results of the first tests are presented.
  • Lucky image performance simulation on the basis of optical turbulence data obtained on Mt. Shatdzhatmaz 
    Safonov, B.S. (Advances in Astronomy and Space Physics, 2011)
    Lucky imaging is a method allowing to achieve difiraction resolution on a moderate ground-based telescopes with the cost of magnitude limitation. To adequately evaluate capabilities of this technique for a given place (Mt. ...
  • Modeling radial velocities of HD 240210 with the Genetic Algorithm 
    Rozenkiewicz, A.; Gozdziewski, K.; Migaszewski, C. (Advances in Astronomy and Space Physics, 2011)
    More than 450 extrasolar planets are known to date. To detect these intriguing objects many photometric and radial velocity surveys are in progress. We developed the Keplerian FITting code, to model published and available ...
  • Nonlinear anticyclone structures in the Earth's atmosphere 
    Saliuk, D.; Agapitov, O. (Advances in Astronomy and Space Physics, 2011)
    We present some results of the study of nonlinear vortex structures in the Earth's atmosphere known as blocking-anticyclones. It is shown that synoptic-scale structure can be considered in the geostrophic approximation in ...
  • Numerical modeling of the magnetosphere with data based internal magnetic field and arbitrary magnetopause 
    Dobreva, P.S.; Kartalev, M.D. (Advances in Astronomy and Space Physics, 2011)
    We present a new model of the magnetospheric magnetic field. Using the finite element method, ChapmanFerraro problem is solved numerically in the considered approach. The whole magnetic field is a sum of: the dipole field, ...
  • Observation of maximum injection upper limit for energetic proton events according to SOHO/ERNE measurements 
    Allawi, H.; Al-Ramdhan, W.; Al-Sawad, A. (Advances in Astronomy and Space Physics, 2011)
    We analyzed 25 solar energetic particle events, with energies ∼ 1 − 100 MeV, observed with ERNE instrument onboard Solar and Heliospheric Observatory (SOHO) and found that all of the solar energetic particlse were associated ...
  • On the massive disks in low surface brightness galaxies 
    Saburova, A.S. (Advances in Astronomy and Space Physics, 2011)
    On the example of four low surface brightness galaxies we demonstrate that the mass-to-light ratio of their disks may be found from the condition of marginal gravitational stability. In this case their surface densities ...
  • Particle module of Piernik MHD code 
    Drazkowska, J.; Hanasz, M.; Kowalik, K. (Advances in Astronomy and Space Physics, 2011)
    Piernik is a multi-fluid grid magnetohydrodynamic code based on the Relaxing Total Variation Diminishing conservative scheme. The original code has been extended by addition of the dust described within the particle ...
  • Peculiar morphologies of extended extragalactic radio sources from numerical simulations 
    Lacatus, D.A.; Badea, M.; Paraschiv, A.R.; Tesileanu, O. (Advances in Astronomy and Space Physics, 2011)
    Among the extragalactic radio sources there are objects with unusual morphologies. We investigated the possibility that the propagation of jets in a stratified distribution of density may produce such effects. A numerical ...
  • Propagation of different components of cosmic rays from Centaurus A in the Galactic magnetic fields 
    Kobzar, O.; Hnatyk, B.; Marchenko, V.; Bogdan, T. (Advances in Astronomy and Space Physics, 2011)
    Propagation of different chemical composition ultrahigh energy cosmic rays in the galactic magnetic fields was simulated. The simulation for the ultra high energy events, registered by the AUGER observatory in the sky ...
  • Search for cyclotron absorptions from magnetars in the quiescence with XMM-Newton 
    Malygin, M.G.; Iakubovskyi, D.A. (Advances in Astronomy and Space Physics, 2011)
    In this work, we perform the detailed analysis of absorption features in spectra of magnetar candidates observed by XMM-Newton satellite. No significant line-like feature has been found. This negative result may indicate ...
  • Seyfert galaxies and "Unified Scheme" 
    Pahshchenko, I.N.; Pilipenko, S.V.; Vitrishchak, V.M. (Advances in Astronomy and Space Physics, 2011)
    From spectroscopic point of view Seyfert galaxies (as other Active Galactic Nuclei - AGN) basically are subdivided into two types: with and without broad permitted emission lines in their optical spectra (so called type I ...

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