IGR J17451-3022: A dipping and eclipsing low mass X-ray binary Public Deposited

http://ir.library.oregonstate.edu/concern/articles/pk02cc32k

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  • In this paper we report on the available X-ray data collected by INTEGRAL, Swift, and XMM-Newton during the first outburst of the INTEGRAL transient IGR J17451–3022, discovered in 2014 August. The monitoring observations provided by the JEM-X instruments on board INTEGRAL and the Swift /XRT showed that the event lasted for about 9 months and that the emission of the source remained soft for the entire period. The source emission is dominated by a thermal component (kT ~ 1.2 keV), most likely produced by an accretion disk. The XMM-Newton observation carried out during the outburst revealed the presence of multiple absorption features in the soft X-ray emission that could be associated with the presence of an ionized absorber lying above the accretion disk, as observed in many high inclination, low mass X-ray binaries. The XMM-Newton data also revealed the presence of partial and rectangular X-ray eclipses (lasting about 820 s) together with dips. The rectangular eclipses can be associated with increases in the overall absorption column density in the direction of the source. The detection of two consecutive X-ray eclipses in the XMM-Newton data allowed us to estimate the source orbital period at P[subscript]orb = 22620.5⁺²·⁰₋₁.₈ s (1σ confidence level).
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  • Bozzo, E., Pjanka, P., Romano, P., Papitto, A., Ferrigno, C., Motta, S., ... & Pavan, L. (2016). IGR J17451–3022: A dipping and eclipsing low mass X-ray binary. Astronomy & Astrophysics, 589, A42. doi:10.1051/0004-6361/201527501
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  • description.provenance : Made available in DSpace on 2016-06-22T16:42:58Z (GMT). No. of bitstreams: 1 BozzoIGR J17451–3022.pdf: 667353 bytes, checksum: 697fa9fac900d3569f0e3803ad2333d5 (MD5) Previous issue date: 2016-05
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