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Modelling of Infrared emission from Cyg X-3 and the UKIRT IRCAM3 point spread function

R. N. Ogley·S. J. Bell Burnell·R. P. Fender
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Abstract

Modelling of the point spread function of the UKIRT IRCAM3 array was conducted in order to test any extended emission around the X-ray binary Cyg X-3. We found that the point spread function cannot be represented by a simple Gaussian, but modelling of the stars required additional functions namely Lorrentzian and exponential components. After modelling for the PSF, we found that Cyg X-3 could be represented by two stellar-type profiles, 0.56" apart.

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R. N. Ogley, S. J. Bell Burnell, R. P. Fender. 1996-11-14. Modelling of Infrared emission from Cyg X-3 and the UKIRT IRCAM3 point spread function. https://doi.org/10.1016/s0083-6656(96)00064-5

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