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200 420 (0,221s)

Result

Mass of intermediate black hole in the source M82 X-1 restricted by models of twin high-frequency quasi-periodic oscillations

of the black hole in the ultraluminous X-ray source M82 X-1 demonstrating twin high and strongly model dependent; nevertheless, they give the lower limit M_{M82 (X-1)} > 130 M_{...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2015
  • Jx
  • Link
Result

Ultraluminous X-ray sources with flat-topped noise and QPO

We analysed the X-ray power density spectra of five ultraluminous X-ray sources (ULXs) NGC5408 X-1, NGC6946 X-1, M82 X-1, NGC1313 X-1...

Astronomy (including astrophysics,space science)

  • 2019
  • Jimp
  • Link
Result

Structure of (GEO 2) 1-x(PbO) x glasses by X-ray scattering.

Glasses from the (GeO 2) 1-x(PbO) x system were synthesised and their structure was by X-ray scattering analysis....

BM - Fyzika pevných látek a magnetismus

  • 2001
  • Jx
Result

X-ray diffraction and reflectance, raman scattering and photoluminiscence characterization of thermally annealed epitaxial Si 1-x Ge x layers

X-ray diffraction and reflectance, raman scattering and photoluminiscence characterization of thermally annealed epitaxial Si 1-x Ge x layers......

BM - Fyzika pevných látek a magnetismus

  • 1993
  • Jx
Result

X-ray irradiation of the stellar wind in HMXBs with B supergiants: Implications for ULXs

rate becomes high. These effects determine the X-ray luminosity of individualWe study the effect of X-ray ionization on the stellar wind of B supergiants. We determine the binary parameters for which the ...

Astronomy (including astrophysics,space science)

  • 2022
  • Jimp
  • Link
Result

X-ray irradiation of the winds in binaries with massive components

Binaries with hot massive components are strong X-ray sources. Besides the intrinsic X-ray emission of individual binary members originating in their winds, X-ray-ionization induced by ex...

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2015
  • Jx
  • Link
Result

Supersmooth replicated multilayer with microroughness below 1 nm, microfocus X-ray mirror, X-ray tube

There was the Centre established, where we proved to further develop and practically apply the results of research in the field of X-ray mirror......

BH - Optika, masery a lasery

  • 2002
  • X
Result

Variable Doppler shifts of the thermal wind absorption lines in low-mass X-ray binaries

wind X-ray absorption lines. We present the velocity measurements of the thermal wind lines observed in the X-ray spectrum of a few low-mass X-ray binaries: GX 13+1. Given the intrinsic ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2014
  • Jx
  • Link
Result

Recovery of the X-ray polarisation of Swift J1727.8-1613 after the soft-to-hard spectral transition

We report on the detection of X-ray polarisation in the black-hole X-ray binary Swift J1727.8-1613 during its dim hard spectral state by the Imaging X-ray Polarimetry Explorer (IXPE). This is the ...

Astronomy (including astrophysics,space science)

  • 2024
  • Jimp
  • Link
Result

The ultraviolet spectrum and physical properties of the mass donor star in HD 226868 = Cygnus X-1

UV spectroscopy from HST and ground-based optical spectra are analyzed to determine physical parameters of the supergiant component of X-ray binary Cyg X-1....

BN - Astronomie a nebeská mechanika, astrofyzika

  • 2009
  • Jx
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