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Просмотр по автору "Cherepashchuk A."

Просмотр по автору "Cherepashchuk A."

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  • Coordinated integral and optical observations of SS433 
    Cherepashchuk A.; Sunyaev R.; Fabrikat S.; Molkov S.; Barsukova E.; Antokhina E.; Irsmambetova T.; Panchenko I.; Postnov K.; Seifina E.; Shakura N.; Timokhin A.; Bikmaev I.; Sakhibullin N.; Gnedin Y.; Arkharov A.; Larionov V. (2004)
    Results of simultaneous INTEGRAL and optical observations of galactic microquasar SS433 in May 2003 are presented. The analysis of the X-ray and optical eclipse duration and hard X-ray spectra obtained by INTEGRAL together ...
  • INTEGRAL observations of SS433: Results of a coordinated campaign 
    Cherepashchuk A.; Sunyaev R.; Fabrika S.; Postnov K.; Molkov S.; Barsukova E.; Antokhina E.; Irsmambetova T.; Panchenko I.; Seifina E.; Shakura N.; Timokhin A.; Bikmaev I.; Sakhibullin N.; Aslan Z.; Khamitov I.; Pramsky A.; Sholukhova O.; Gnedin Y.; Arkharov A.; Larionov V. (2005)
    Results of simultaneous INTEGRAL and optical observations of the galactic microquasar SS433 in May 2003 and INTEGRAL/RXTE observations in March 2004 are presented. Persistent precessional variability with a maximum to ...
  • Mass ratio in SS433 revisited 
    Cherepashchuk A.; Postnov K.; Belinski A. (2019)
    © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society We revisit the determination of binary mass ratio in the Galactic microquasar SS433 based on recent GRAVITY VLTI ...
  • Radial-velocity curves and theoretical spectral-line profiles of the components of low-mass close X-ray binary systems 
    Antokhina E.; Cherepashchuk A.; Shimanskii V. (2005)
    We present the results of calculations of theoretical absorption-line profiles and radial-velocity curves for optical components in X-ray binary systems. Tidal distortion of the optical star and X-ray heating by incident ...
  • The mass of the black hole in the X-ray binary LMC X-1 
    Abubekerov M.; Antokhina E.; Gostev N.; Cherepashchuk A.; Shimansky V. (2016)
    © 2016, Pleiades Publishing, Ltd.A dynamical estimate of the mass of the black hole in the LMC X-1 binary system is obtained in the framework of a Roche model for the optical star, based on fitting of the He I 4471 Å and ...
  • The mass of the compact object in the low-mass X-ray binary 2S 0921-630 
    Abubekerov M.; Antokhina E.; Cherepashchuk A.; Shimanskii V. (2006)
    We interpret the observed radial-velocity curve of the optical star in the low-mass X-ray binary 2S 0921-630 using a Roche model, taking into account the X-ray heating of the optical star and screening of X-rays coming ...
  • The mass of the compact object in the X-ray binary her X-1/HZ her 
    Abubekerov M.; Antokhina E.; Cherepashchuk A.; Shimanskii V. (2008)
    We have obtained the first estimates of the masses of the components of the Her X-1/HZ Her X-ray binary system taking into account non-LTE effects in the formation of the H γ absorption line: m x = 1.8 M⊙ and mv = 2.5 M⊙. ...

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