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Title:
Simultaneous X-ray and infrared observations of Cygnus X-3
Authors:
Mason, K. O.; Cordova, F. A.; White, N. E.
Affiliation:
AA(London, University, College, Dorking, England), AB(Los Alamos National Laboratory, NM), AC(EXOSAT Observatory, Darmstadt, Germany)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 309, Oct. 15, 1986, p. 700-706. Research supported by the Royal Society, SERC, and DOE. (ApJ Homepage)
Publication Date:
10/1986
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Infrared Astronomy, Light Curve, Stellar Flares, Stellar Spectrophotometry, X Ray Astronomy, X Ray Binaries, Exosat Satellite, Infrared Photometry, Infrared Telescopes, Modulation
DOI:
10.1086/164638
Bibliographic Code:
1986ApJ...309..700M

Abstract

Cygnus X-3 has been observed simultaneously in the X-ray and infrared spectral bands. A series of short flares were detected in the infrared. The most intense of these involve a doubling of the 2.2 micron flux. No counterparts of the flares were unequivocably detected in the X-ray band; the ratio of the flare energy emitted in the 1.5-10.0 keV and 2.0-2.4 micron bands is less than 40. The infrared flare events are interpreted as emission from clumps of hot material being ejected from the system in jets, and it is predicted that they are the precursors of radio flares which originate in outlying jet regions. In addition to the flares , the infrared emission is modulated with the 4.8 hr X-ray period.

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