Academic Journal
Identification of 1RXS J165424.6-433758 as a Polar Cataclysmic Variable
| العنوان: | Identification of 1RXS J165424.6-433758 as a Polar Cataclysmic Variable |
|---|---|
| المؤلفون: | B. O’Connor, J. Brink, D. A. H. Buckley, K. Mukai, C. Kouveliotou, E. Göğüş, S. B. Potter, P. Woudt, A. Lien, A. Levan, O. Kargaltsev, M. G. Baring, E. Bellm, S. B. Cenko, P. A. Evans, J. Granot, C. Hailey, F. Harrison, D. Hartmann, A. J. van der Horst, D. Huppenkothen, L. Kaper, J. A. Kennea, P. O. Slane, D. Stern, E. Troja, R. A. M. J. Wijers, G. Younes |
| المصدر: | The Astrophysical Journal, Vol 957, Iss 2, p 89 (2023) |
| بيانات النشر: | IOP Publishing, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Astrophysics |
| مصطلحات موضوعية: | AM Herculis stars, Cataclysmic variable stars, X-ray astronomy, Astrophysics, QB460-466 |
| الوصف: | We present the results of our X-ray, ultraviolet, and optical follow-up campaigns of 1RXS J165424.6-433758, an X-ray source detected with the Swift Deep Galactic Plane Survey. The source X-ray spectrum (Swift and NuSTAR) is described by thermal bremsstrahlung radiation with a temperature of kT = 10.1 ± 1.2 keV, yielding an X-ray (0.3–10 keV8) luminosity L _X = (6.5 ± 0.8) × 10 ^31 erg s ^−1 at a Gaia distance of 460 pc. Spectroscopy with the Southern African Large Telescope revealed a flat continuum dominated by emission features, demonstrating an inverse Balmer decrement, the λ 4640 Bowen blend, almost a dozen He i lines, and He ii λ 4541, λ 4686, and λ 5411. Our high-speed photometry demonstrates a preponderance of flickering and flaring episodes, and revealed the orbital period of the system, P _orb = 2.87 hr, which fell well within the cataclysmic variable (CV) period gap between 2 and 3 hr. These features classify 1RXS J165424.6-433758 as a nearby polar magnetic CV. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1538-4357 |
| Relation: | https://doaj.org/toc/1538-4357 |
| DOI: | 10.3847/1538-4357/acf831 |
| URL الوصول: | https://doaj.org/article/76f06569198f4837b662ba8fb64d0133 |
| رقم الانضمام: | edsdoj.76f06569198f4837b662ba8fb64d0133 |
| قاعدة البيانات: | Directory of Open Access Journals |
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