Swift monitoring of IGR J16418-4532

(2) INAF-IASF Palermo; (3) Uni. Tuebingen); L. Ducci (3); P. Esposito (1); P. Romano (2); S. Vercellone (2) ((1) INAF-IASF Milano; V. Mangano (2)

arxiv: 1209.5872 · v1 · pith:B7X27THNnew · submitted 2012-09-26 · 🌌 astro-ph.HE

Swift monitoring of IGR J16418-4532

P. Esposito (1) , P. Romano (2) , V. Mangano (2) , L. Ducci (3) , S. Vercellone (2) ((1) INAF-IASF Milano , (2) INAF-IASF Palermo , (3) Uni. Tuebingen) This is my paper

classification 🌌 astro-ph.HE

keywords j16418-4532monitoringorbitalperiodsourcesupergiantswiftx-ray

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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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Swift monitoring of IGR J16418-4532

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