Электронный архив

Просмотр по автору "Klochkov D."

Просмотр по автору "Klochkov D."

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  • A non-pulsating neutron star in the supernova remnant HESS J1731-347/G353.6-0.7 with a carbon atmosphere 
    Klochkov D.; Pühlhofer G.; Suleimanov V.; Simon S.; Werner K.; Santangelo A. (2013)
    Context. The central compact object (CCO) candidate in the center of the supernova remnant shell HESS J1731-347/G353.6-0.7 shows no pulsations and exhibits a blackbody-like X-ray spectrum. If the absence of pulsations is ...
  • Carbon neutron star atmospheres 
    Suleimanov V.; Klochkov D.; Pavlov G.; Werner K. (2014)
    The accuracy of measuring the basic parameters of neutron stars is limited in particular by uncertainties in the chemical composition of their atmospheres. For example, the atmospheres of thermally emitting neutron stars ...
  • Evidence for a binary origin of a central compact object 
    Doroshenko V.; Pühlhofer G.; Kavanagh P.; Santangelo A.; Suleimanov V.; Klochkov D. (2016)
    © 2016 The Authors.Central compact objects (CCOs) are thought to be young thermally emitting isolated neutron stars that were born during the preceding core-collapse supernova explosion. Here, we present evidence that at ...
  • Infrared and X-ray study of the Galactic SNR G15.9+0.2 
    Sasaki M.; Mäkelä M.; Klochkov D.; Santangelo A.; Suleimanov V. (2018)
    © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. G15.9+0.2 is a Galactic shell-type supernova remnant (SNR), which was detected in radio and has been confirmed in X-rays ...
  • Is there a highly magnetized neutron star in GX 301-2? 
    Doroshenko V.; Santangelo A.; Suleimanov V.; Kreykenbohm I.; Staubert R.; Ferrigno C.; Klochkov D. (2010)
    We present the results of an in-depth study of the long-period X-ray pulsar GX 301-2. Using archival data of INTEGRAL, RXTE ASM, and CGRO BATSE, we study the spectral and timing properties of the source. Comparison of our ...
  • Measuring the basic parameters of neutron stars using model atmospheres 
    Suleimanov V.; Poutanen J.; Klochkov D.; Werner K. (2016)
    © 2016, SIF, Springer-Verlag Berlin Heidelberg. Model spectra of neutron star atmospheres are nowadays widely used to fit the observed thermal X-ray spectra of neutron stars. This fitting is the key element in the method ...
  • Modelling of 35-d superorbital cycle of B and V light curves of IMXB HZ Her/Her X-1 
    Kolesnikov D.A.; Shakura N.I.; Postnov K.A.; Volkov I.M.; Bikmaev I.F.; Irsmambetova T.R.; Staubert R.; Wilms J.; Irtuganov E.; Golysheva P.Y.; Shugarov S.Y.; Nikolenko I.V.; Trunkovsky E.M.; Schönherr G.; Schwope A.; Klochkov D. (2020)
    © 2020 The Author(s). The X-ray binary Her X-1 consists of an accreting neutron star and the optical component HZ Her. The 35-d X-ray superorbital variability of this system is known, since its discovery in 1972 by the ...
  • The 35-day cycle in the X-ray binary HZ Her/Her X-1 
    Kolesnikov D.; Shakura N.; Postnov K.; Volkov I.; Bikmaev I.; Irsmambetova T.; Staubert R.; Wilms J.; Irtuganov E.; Shurygin P.; Golysheva P.; Shugarov S.; Nikolenko I.; Trunkovsky E.; Schonherr G.; Schwope A.; Klochkov D. (2020)
    © 2020 Astronomical Institute, Slovak Academy of Sciences. We present the results of modelling the 35-day superorbital changes in the B and V lightcurves and X-ray flux of HZ Her/Her X-1. The model is implemented in a ...
  • The neutron star in HESS? J1731 - 347: Central compact objects as laboratories to study the equation of state of superdense matter 
    Klochkov D.; Suleimanov V.; Pühlhofer G.; Yakovlev D.; Santangelo A.; Werner K. (2015)
    © ESO, 2014. Context. Central compact objects (CCOs) in supernova remnants are isolated thermally emitting neutron stars (NSs). They are most probably characterized by a magnetic field strength that is roughly two orders ...

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