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Просмотр по автору "Lutovinov A."

Просмотр по автору "Lutovinov A."

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  • A reflection model for the cyclotron lines in the spectra of X-ray pulsars 
    Poutanen J.; Mushtukov A.; Suleimanov V.; Tsygankov S.; Nagirner D.; Doroshenko V.; Lutovinov A. (2013)
    Cyclotron resonance scattering features observed in the spectra of some X-ray pulsars show significant changes of the line energy with the pulsar luminosity. At high luminosities, these variations are often associated with ...
  • Basic parameters of the helium-accreting X-ray bursting neutron star in 4U 1820-30 
    Suleimanov V.; Kajava J.; Molkov S.; Nättilä J.; Lutovinov A.; Werner K.; Poutanen J. (2017)
    © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. The ultracompact low-mass X-ray binary 4U 1820-30 situated in the globular cluster NGC 6624 has an orbital period of only ...
  • Broadband X-ray spectrum of intermediate polar V1223 Sgr 
    Revnivtsev M.; Lutovinov A.; Suleimanov V.; Sunyaev R.; Zheleznyakov V. (2004)
    We present the broadband phase averaged spectrum of one of the brightest intermediate polars V1223 Sgr, obtained with INTEGRAL and RXTE observatories (3-100 keV). Good statistical quality of the spectrum in a hard X-ray ...
  • Broadband X-ray spectrum of the intermediate polar V2400 Oph 
    Revnivtsev M.; Lutovinov A.; Suleimanov B.; Molkov S.; Sunyaev R. (2004)
    We present the results of our analysis of the observations of the intermediate polar V2400 Oph by the INTEGRAL and RXTE observatories. We reconstructed the spectrum of the source over a wide (3-100 keV) energy range. The ...
  • Determining the nature of faint X-ray sources from the ASCA Galactic center survey 
    Lutovinov A.; Revnivtsev M.; Karasev D.; Shimansky V.; Burenin R.; Bikmaev I.; Vorob’ev V.; Tsygankov S.; Pavlinsky M. (2015)
    © 2015, Pleiades Publishing, Inc. We present the results of the the identification of six objects from the ASCA Galactic center and Galactic plane surveys: AX J173548-3207, AX J173628-3141, AX J1739.5-2910, AX J1740.4-2856, ...
  • Dramatic spectral transition of X-ray pulsar GX 304-1 in low luminous state 
    Tsygankov S.; Rouco Escorial A.; Suleimanov V.; Mushtukov A.; Doroshenko V.; Lutovinov A.; Wijnands R.; Poutanen J. (2019)
    © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. We report on the discovery of a dramatic change in the energy spectrum of the X-ray pulsar GX 304-1 appearing at low ...
  • IGR J16547-1916/1RXS J165443.5-191620-a new intermediate polar from the INTEGRAL galactic survey 
    Lutovinov A.; Burenin R.; Revnivtsev M.; Suleimanov V.; Tkachenko A. (2010)
    We present the results of our optical identification of the X-ray source IGR J16547-1916 detected by the INTEGRAL observatory during a deep all-sky survey. Analysis of the spectroscopic data from the SWIFT and INTEGRAL ...
  • INTEGRAL View on cataclysmic variables and symbiotic binaries 
    Lutovinov A.; Suleimanov V.; Manuel Luna G.J.; Sazonov S.; Martino D.d.; Ducci L.; Doroshenko V.; Falanga M. (2020)
    © 2020 Elsevier B.V. Accreting white dwarfs (WDs) constitute a significant fraction of the hard X-ray sources detected by the INTEGRAL observatory. Most of them are magnetic Cataclysmic Variables (CVs) of the intermediate ...
  • On the origin of cyclotron lines in the spectra of X-ray pulsars 
    Mushtukov A.; Poutanen J.; Suleimanov V.; Tsygankov S.; Nagirner D.; Doroshenko V.; Lutovinov A. (2014)
    Cyclotron resonance scattering features are observed in the spectra of some X-ray pulsars and show significant changes in the line energy with the pulsar luminosity. In a case of bright sources, the line centroid energy ...
  • Optical identification of six hard X-ray sources from the INTEGRAL and SWIFT all-sky surveys 
    Lutovinov A.; Burenin R.; Revnivtsev M.; Bikmaev I. (2012)
    We present results of optical identifications of six hard X-ray sources from the INTEGRAL and Swift all-sky surveys (IGR J03249+4041, SWIFT J1449. 5+8602, SWIFT J1542. 0-1410, IGR J17009+3559, IGR J18151-1052, IGR J18538-0102). ...
  • Variability of X-ray pulsars in a hard energy band observed with INTEGRAL 
    Lutovinov A.; Tsygankov S.; Revnivtsev M.; Chernyakova M.; Bikmaev I.; Molkov S.; Burenin R.; Pavlinsky M.; Sakhibullin N. (2004)
    We present the first results of the observations of the X-ray pulsars LMC X-4, 4U0352+309 and EXO1722-363 performed with the INTEGRAL observatory. The LMC X-4 was investigated during the whole superorbital cycle (∼30 days) ...

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