تقرير
Identification of an X-ray Pulsar in the BeXRB system IGR J18219$-$1347
| العنوان: | Identification of an X-ray Pulsar in the BeXRB system IGR J18219$-$1347 |
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| المؤلفون: | O'Connor, B., Gogus, E., Huppenkothen, D., Kouveliotou, C., Gorgone, N., Townsend, L. J., Calamida, A., Fruchter, A., Buckley, D. A. H., Baring, M. G., Kennea, J. A., Younes, G., Arzoumanian, Z., Bellm, E., Cenko, S. B., Gendreau, K., Granot, J., Hailey, C., Harrison, F., Hartmann, D., Kaper, L., Kutyrev, A., Slane, P. O., Stern, D., Troja, E., van der Horst, A. J., Wijers, R. A. M. J., Woudt, P. |
| سنة النشر: | 2021 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | We report on observations of the candidate Be/X-ray binary IGR J18219$-$1347 with \textit{Swift}/XRT, \textit{NuSTAR}, and \textit{NICER} during Type-I outbursts in March and June 2020. Our timing analysis revealed the spin period of a neutron star with $P_\textrm{spin}=52.46$ s. This periodicity, combined with the known orbital period of $72.4$ d, indicates that the system is a BeXRB. Furthermore, by comparing the infrared counterpart's spectral energy distribution to known BeXRBs, we confirm this classification and set a distance of approximately $10-15$ kpc for the source. The source's broadband X-ray spectrum ($1.5-50$ keV) is described by an absorbed power-law with photon index $\Gamma$\,$\sim$\,$0.5$ and cutoff energy at $\sim$\,$13$ keV. Comment: Revised manuscript. Accepted to ApJ |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/1538-4357/ac5032 |
| الوصول الحر: | http://arxiv.org/abs/2111.12592Test |
| رقم الانضمام: | edsarx.2111.12592 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/1538-4357/ac5032 |
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