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Cygnus X-3: Orbital Modulation in X-Rays and Radio

Published online by Cambridge University Press:  22 February 2018

L. Hjalmarsdotter ,
P. J. Hakala ,
O. Vilhu ,
D. C. Hannikainen ,
M. McCollough  and
G. G. Pooley
L. Hjalmarsdotter
Affiliation:
Observatory, P.O. Box 14, FIN-00014 University of Helsinki, Finland (nea@astro.helsinki.fi)
P. J. Hakala
Affiliation:
Observatory, P.O. Box 14, FIN-00014 University of Helsinki, Finland (nea@astro.helsinki.fi)
O. Vilhu
Affiliation:
Observatory, P.O. Box 14, FIN-00014 University of Helsinki, Finland (nea@astro.helsinki.fi)
D. C. Hannikainen
Affiliation:
Observatory, P.O. Box 14, FIN-00014 University of Helsinki, Finland (nea@astro.helsinki.fi)
M. McCollough
Affiliation:
Observatory, P.O. Box 14, FIN-00014 University of Helsinki, Finland (nea@astro.helsinki.fi)
G. G. Pooley
Affiliation:
Observatory, P.O. Box 14, FIN-00014 University of Helsinki, Finland (nea@astro.helsinki.fi)

Extract

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The orbital modulation of the X-ray and radio emission of Cyg X-3 was studied using monitoring data from CGRO/BATSE, RXTE/ASM, GBI and the Ryle telescope as well as recent INTEGRAL observations. The depth of the X-ray modulation was found to be the same at X-ray energies ranging from 1.5 up to at least 20 keV, but the shape of the lightcurves changes gradually with energy. No modulation was found in radio.

Type
The Contributed Papers
Information
International Astronomical Union Colloquium , Volume 194: Compact binaries in the galaxy and beyond , 2004 , pp. 216
Copyright
Copyright © Instituto de astronomia/revista mexicana de astronomίa y astrofίsica 2004

References

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