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Cygnus X-3 in outburst : quenched radio emission, radiation losses and variable local opacity

(1996)

Authors:

RP Fender, SJ Bell Burnell, EB Waltman, GG Pooley, FD Ghigo, RS Foster
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Radio, Infrared and X-ray observations of GRS 1915+105

(1996)

Authors:

RP Fender, GG Pooley, CR Robinson, BA Harmon, SN Zhang, C Canosa
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A deep search for radio emission from three X-ray pulsars : are radio emission and X-ray pulsations anticorrelated ?

(1996)

Authors:

RP Fender, P Roche, GG Pooley, D Chakrabarty, AK Tzioumis, MA Hendry, RE Spencer
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Flaring and quiescent infrared behaviour of Cygnus X-3

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 283:3 (1996) 798-804

Authors:

RP Fender, SJ Bell Burnell, PM Williams, AS Webster
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Hard x-ray and ir observations of cygnus x-3

Astronomy and Astrophysics Supplement Series 120:4 (1996) 235-238

Authors:

SM Matz, RP Fender, SJ Bell Burnell, JE Grove, MS Strickman

Abstract:

In 1994 June-July we obtained nearly concurrent measurements of Cyg X-3 in hard X-rays and the infrared, using the OSSE instrument on GRO and the UKIRT. OSSE made a high significance measurement of the hard X-ray (> 50 keV) orbital light curve. Five days after the end of the OSSE observations we obtained a good IR /f-band light curve from data covering one orbit of Cyg X-3. Measurements of the light curve phase and shape probe the geometry of the system and the physics of radiation production and scattering. We determined for the first time that the light curve phases are consistent at these two different wavelengths. The light curve shapes were both marginally inconsistent (at about the 0.2% level) with the canonical soft X-ray shape measured by EXOSAT in 1983-1985. Underlying variations in DC IR flux and flaring during the observation make it difficult to draw unambiguous conclusions; more observations, with better IR coverage, are needed.