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arXiv · 1209.5872

Swift monitoring of IGR J16418-4532

P. Esposito·P. Romano·V. Mangano·L. Ducci·S. Vercellone
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Abstract

We report on the Swift observations of the candidate supergiant fast X-ray transient (SFXT) IGR J16418-4532, which has an orbital period of ~3.7 d. Our monitoring, for a total of ~43 ks, spans over three orbits and represents the most intense and complete sampling along the orbital period of the light curve of this source. If one assumes a circular orbit, the X-ray emission from this source can be explained by accretion from a spherically symmetric clumpy wind from a blue supergiant, composed of clumps with different masses, ranging from ~5x10^16 g to 10^21g.

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P. Esposito, P. Romano, V. Mangano, L. Ducci, S. Vercellone. 2012-09-26. Swift monitoring of IGR J16418-4532. https://doi.org/10.1063/1.4772293

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