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Перегляд Advances in Astronomy and Space Physics, 2012, вип. 2 за назвою

Репозиторій DSpace/Manakin

Перегляд Advances in Astronomy and Space Physics, 2012, вип. 2 за назвою

Сортувати за: Порядок: Результатів:

  • Astroclimate parameters of the Kyiv observatories 
    Rieznik, K.; Reshetnyk, V.M. (Advances in Astronomy and Space Physics, 2012)
    Astroclimate parameters such as the atmospheric extinction, the night-sky brightness, and the seeing are studied using the observational data obtained at some Kyiv observatories. The first parameter is determined using the ...
  • Binary evolution pulsating star - new evolutionary channel to produce RR Lyr-like pulsations 
    Karczmarek, P. (Advances in Astronomy and Space Physics, 2012)
    In 2011 a promising candidate for an RR Lyrae star in an eclipsing binary system was found. Till that time not even one case of RR Lyrae star in a binary system has been known. The pulsator's mass is 0.26 Mꙩ which is not ...
  • Catalogue-atlas of photographic observations along Comet Liller's path 
    Fursiak, Yu.A.; Shlyapnikov, A.A. (Advances in Astronomy and Space Physics, 2012)
    We present the on-line version of the catalogue-atlas of photographic observations along the path of comet Liller (1988a). The comet was observed in the N. D. Kalinenkov Astronomical Observatory (AOK) of the Nikolaev ...
  • CCD photometry of some areas around the open cluster M45 
    Savushkin, A.A.; Shlyapnikov, A.A. (Advances in Astronomy and Space Physics, 2012)
    We present the results of photometric studies in some areas around the open star cluster M 45. Observations were carried out on January-March 2012. About 600 images were obtained in the V band (Johnsons system). Centres ...
  • Chandra observations of ten galaxy clusters 
    Babyk, Iu.; Melnyk, O.; Elyiv, A. (Advances in Astronomy and Space Physics, 2012)
    In the present study the X-ray properties of 10 galaxy clusters (CL0024+17, RXJ1347.5+1145, A223, A521, A611, A697, A907, A1204, A1413 and A2744) are analysed using the archival X-ray data of the Chandra observatory. The ...
  • Circumsubstellar disk SED in dependence on system parameters 
    Zakhozhay, O. (Advances in Astronomy and Space Physics, 2012)
    Formulae for critical angles and areas that permit to imagine configurations of observed systems and to calculate their spectral energy distributions (SEDs) as dependencies on their geometrical parameters and inclination ...
  • Coronal jet contribution to the slow Solar wind flux: preliminary results 
    Paraschiv, A.R.; Dragomirescu, D.; Stan, L.; Talpeanu, D.C.; Ivan, C.; Radu, S.; Lacatus, D.A.; Mierla, M. (Advances in Astronomy and Space Physics, 2012)
    The solar wind is a continuous flux of charged particles that are ejected from the Sun's atmosphere. The sources of this flux have not been clearly identiffed yet. Coronal jets are proposed as a possible candidate. They ...
  • Digital version of the CrAO archive of spectral observations of the Sun, carried out with the KG-2 coronagraph 
    Fursiak, Yu.A. (Advances in Astronomy and Space Physics, 2012)
    With the development of computer technology a topical problem to digitize the astronomical data stored on various media, for their preservation and accessibility for further faster and more accurate processing has arisen. ...
  • Distribution of areas of radiation generation at different frequencies in pulsar magnetospheres 
    Malov, I.F.; Nikitina, E.B. (Advances in Astronomy and Space Physics, 2012)
    We analyse homogeneous samples of pulsars at 10 cm and 20 cm and propose to use n, the ratio of the half-width of the radiation cone θ to the minimum angular sight distance from the centre of this cone, to determine the ...
  • 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 ...
  • 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 ...
  • 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-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 ...
  • Low-resolution spectrum of comet C/2004 Q2 (Machholz) 
    Shubina, O.; Korsun, P.; Ivashchenko, Yu. (Advances in Astronomy and Space Physics, 2012)
    We analysed the spectroscopic data for comet C/2004 Q2 (Machholz), obtained on the Zeiss-600 telescope in Andrushivka Astronomical Observatory on January 29, 2005. The observed spectrum covers a wavelength range 3600-9200 ...
  • Period changes of the sample of eclipsing binaries with active chromospheres 
    Jableka, D.; Zola, S.; Zakrzewski, B.; Szymanski, T.; Kuzmicz, A.; de Villiers, S.N.; Zejda, M.; Koziel-Wierzbowska, D. (Advances in Astronomy and Space Physics, 2012)
    In this work we present results derived from analysis of the O-C behaviour of ten eclipsing binary systems: AR Lac, CG Cyg, HP Aur, MM Her, RS CVn, RT And, SV Cam, V471 Tau, WW Dra and CF Tuc. It was proved on the basis ...
  • Polarimetric observations of the Galilean satellites near opposition in 2011 
    Zaitsev, S.V.; Kiselev, N.N.; Rosenbush, V.K.; Velichko, F.P.; Kolesnikov, S.V.; Antonyuk, K.A.; Psarev, V.N. (Advances in Astronomy and Space Physics, 2012)
    We present results of the new polarimetric observations of the Galilean satellites Io, Ganymede, Europe, and Callisto carried out on October 21 - November 1, 2011. We used 1.25m telescope equipped with the UBVRI double ...
  • Recent developments of atmospheric research in Ukraine 
    Milinevsky, G.P.; Danylevsky, V.O.; Grytsai, A.V.; Evtushevsky, O.M.; Kravchenko, V.O.; Bovchaliuk, A.P.; Bovchaliuk, V.P.; Sosonkin, M.G.; Goloub, Ph.; Savitska, L.Y.; Udodov, E.V.; Voytenko, V.P. (Advances in Astronomy and Space Physics, 2012)
    In recent years the Joint Laboratory of Atmospheric Optics and Aerosols of Ukraine has been carrying out atmospheric research in cooperation with international program of climate change studies. Our current research is ...
  • Search of the radio emission from flare stars at decameter wavelengths 
    Boiko, A.I.; Konovalenko, A.A.; Koliadin, V.L.; Melnik, V.N. (Advances in Astronomy and Space Physics, 2012)
    Observations of the two M-dwarf flare stars (AD Leonis and EV Lacertae), which were carried out with the radio telescope UTR-2 (Kharkiv, Ukraine) in the range of 16.5 − 33 MHz, are presented. 167 events of radio emission ...
  • Simulating peculiar X-shaped extragalactic radio sources 
    Lacatus, D.A.; Paraschiv, A.R.; Tesileanu, O. (Advances in Astronomy and Space Physics, 2012)
    Peculiar morphologies have been observed among extragalactic radio sources, which present important sideways features that are yet to be explained. After obtaining the region in the parameter space for which the intended ...
  • Simulation of polarimetric effects in planetary system HD 189733 
    Frantseva, K.; Kostogryz, N.M.; Yakobchuk, T.M. (Advances in Astronomy and Space Physics, 2012)
    In this paper we present results of linear polarization modelling for HD 189733 in the U filter using the Monte Carlo method. Our simulations are based on the well known effect that linear polarization of a entrosymmetri ...

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