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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

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  • Magnetosheath and solar wind turbulence processes features identification 
    Prokhorenkov, A.S.; Kozak, L.V.; Lui, A.T.Y. (Advances in Astronomy and Space Physics, 2015)
    A different kind of analysis should be applied to a turbulent process, than that applied to a nondisturbed medium. In this work we present the result of extended self-similarity analysis (ESS) by comparing between different ...
  • Magnetospheric ULF waves driven by external sources 
    Agapitov, O.V.; Cheremnykh, O.K. (Advances in Astronomy and Space Physics, 2013)
    The multi-spacecraft missions (Cluster and THEMIS) observations allowed to collect large data base for Ultra Low Frequency (ULF) waves properties, their localization, and sources. Here we focused mainly on these recent ...
  • MgH lines in the spectrum of Arcturus 
    Kushniruk, I.O.; Pavlenko, Ya.V.; Kaminskiy, B.M. (Advances in Astronomy and Space Physics, 2013)
    The synthetic spectra of MgH lines were computed for the grid of the model atmospheres and compared with the observed spectrum of Arcturus. The parameters of the atmosphere of Arcturus for log g = 1.5 and Tₑff = 4300K were ...
  • MHD waves in the plasma system with dipole magnetic field configuration 
    Cheremnykh, S.O.; Agapitov, O. (Advances in Astronomy and Space Physics, 2012)
    The eigenmode spectrum of the ultra low frequency (ULF) waves in the Earth magnetosphere is discrete and consists of Alfvén and slow magnetosonic modes. Their interaction depends on ionospheric conductivity and the magnetic ...
  • 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 ...
  • Multipoint observations of Ionospheric Alfvén Resonance 
    Baru, N.A.; Koloskov, A.V.; Yampolsky, Y.M.; Rakhmatulin, R.A. (Advances in Astronomy and Space Physics, 2016)
    Among the processes that form properties of the geospace in the circumterrestrial plasma the electromagnetic resonances of the Earth, such as Schummann Resonance (SR) and Ionospheric Alfvén Resonance (IAR) are of great ...
  • New emission line at ~3.5 keV - observational status, connection with radiatively decaying dark matter and directions for future studies 
    Iakubovskyi, D.A. (Advances in Astronomy and Space Physics, 2014)
    Recent works of Bulbul et al. (2014) and Boyarsky et al. (2014), claiming the detection of the extra emission line with energy ∼3.5 keV in X-ray spectra of certain clusters of galaxies and nearby Andromeda galaxy, have ...
  • Nitrogen abundance in the Blue Compact Dwarf galaxies from SDSS 
    Vovk, K.B. (Advances in Astronomy and Space Physics, 2015)
    We examined all of the galaxies in the Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) to select those with a dete ted [O ΙΙΙ ] λ4363 emission line, whih allows to derive electron temperatures in H װ regions and element ...
  • 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 ...
  • Nonthermal emission model of isolated X-ray pulsar RX J0420.0-5022 
    Chkheidze, N.; Babyk, Iu. (Advances in Astronomy and Space Physics, 2013)
    In this paper, an alternative theoretical interpretation to the generally assumed thermal emission models of the observed X-ray spectrum of isolated pulsar RX J0420.0-5022 is presented. It is well-known that at a pulsar ...
  • 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 ...
  • Observation of the new emission line at ~3.5 keV in X-ray spectra of galaxies and galaxy clusters 
    Iakubovskyi, D.A. (Advances in Astronomy and Space Physics, 2016)
    The detection of an unidentified emission line in the X-ray spectra of cosmic objects would be a `smoking gun'signature for the particle physics beyond the Standard Model. More than a decade of its extensive searches results ...
  • Observations of Sy2 galaxy NGC 3281 by XMM-Newton and INTEGRAL satellites 
    Vasylenko, A.A.; Fedorova, E.; Zhdanov, V.I. (Advances in Astronomy and Space Physics, 2013)
    We present the results of the analysis of X-ray properties of the Seyfert 2 galaxy NGC 3281, based on the observational data obtained by XMM-Newton and INTEGRAL within the energy ranges 0.2-12 keV and 20-150 keV, respectively. ...
  • On statistical distributions of wide binary stars 
    Chulkov, D.A.; Trushin, D.I. (Advances in Astronomy and Space Physics, 2012)
    The semi-major axis is a key parameter of binary stellar systems. In order to obtain current semi-major axis distribution we investigated a volume-limited sample of the binaries in solar neighbourhood. Obtained distribution ...
  • On the comparison of fundamental numerical ephemerides 
    Tkachuk, V.V.; Choliy, V.Ya. (Advances in Astronomy and Space Physics, 2013)
    We present the results of our comparison of three main numerical ephemerides (DELE, INPOP, EPM) for the determination of precision and errors of their dynamical coordinate systems. It was shown that all of them have ...
  • On the extension of Helmert transform 
    Choliy, V.Ya. (Advances in Astronomy and Space Physics, 2014)
    The article deals with the method of comparison of the coordinate systems used by two quite different scientific disciplines: stellar astronomy and the geodesy. Geodesic Helmert transform is analysed along with a series ...
  • 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 ...
  • On the non universality of surface density of galaxies 
    Del Popolo, A. (Advances in Astronomy and Space Physics, 2012)
    We studied the correlation between the central surface density of dark matter haloes and the halo core radius of galaxy and galaxy recently studied on a wide range of scales. For this aim we used the secondary infall model, ...
  • On the question of detecting granulation signal in CoRoT light curves of A and B stars 
    Ghazaryan, S. (Advances in Astronomy and Space Physics, 2013)
    We applied the procedure written by us to HgMn targets observed both through CoRoT astero and exo channels to check its usefulness for search of possible existence of solar-type granulation signature in their power spectrum. ...

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