Doppler Tomography in 2D and 3D of the X-ray Binary Cyg X-1 for June 2007

The 2D and 3D Doppler tomograms of X-ray binary system Cyg X-1 (V1357 Cyg) were reconstructed from spectral data for the line HeII 4686Å obtained with 2-m telescope of the Peak Terskol Observatory (Russia) and 2.1-m telescope of the Mexican National Observatory in June, 2007. Information about gas m...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2011-07, Vol.7 (S282), p.201-202
Main Authors: Sharova, O. I., Agafonov, M. I., Karitskaya, E. A., Bochkarev, N. G., Zharikov, S. V., Butenko, G. Z., Bondar, A. V.
Format: Article
Language:English
Subjects:
Accretion disks
Astronomy
Contributed Papers
Double stars
Spectrum analysis
Tomography
X-ray astronomy
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Summary:The 2D and 3D Doppler tomograms of X-ray binary system Cyg X-1 (V1357 Cyg) were reconstructed from spectral data for the line HeII 4686Å obtained with 2-m telescope of the Peak Terskol Observatory (Russia) and 2.1-m telescope of the Mexican National Observatory in June, 2007. Information about gas motions outside the orbital plane, using all of the three velocity components Vx, Vy, Vz, was obtained for the first time. The tomographic reconstruction was carried out for the system inclination angle of 45°. The equal resolution (50 × 50 × 50 km/s) is realized in this case, in the orbital plane (Vx, Vy) and also in the perpendicular direction Vz. The checkout tomograms were realized also for the inclination angle of 40° because of the angle uncertainty. Two versions of the result showed no qualitative discrepancy. Details of the structures revealed by the 3D Doppler tomogram were analyzed.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921311027359