مؤتمر
A preliminary timing analysis of two intermediate polars: UU Col and Swift J0939.7-3224
| العنوان: | A preliminary timing analysis of two intermediate polars: UU Col and Swift J0939.7-3224 |
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| المؤلفون: | Rawat, Nikita, Pandey, J. C., Joshi, Arti, M Rao, Srinivas, De Becker, Michaël |
| المساهمون: | STAR - Space sciences, Technologies and Astrophysics Research - ULiège, BE |
| المصدر: | Bulletin de la Société Royale des Sciences de Liège, 93 (2), 648-656 (2024-06-11); Third BINA workshop: Scientific potential of the Indo-Belgian cooperation, Bhimtal, India [IN], 22-24 March 2023 |
| بيانات النشر: | Société Royale des Sciences de Liege, 2024. |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Cataclysmic variables, Photometry, White dwarfs, Physical, chemical, mathematical & earth Sciences, Space science, astronomy & astrophysics, Physique, chimie, mathématiques & sciences de la terre, Aérospatiale, astronomie & astrophysique |
| الوصف: | We present the preliminary timing analysis of confirmed intermediate polar UUCol and possible intermediate polar Swift J0939.7-3224 in the optical band withthe help of long-term, high-cadence continuous photometry from TransitingExoplanet Survey Satellite (TESS). For UU Col, we revise previously reportedorbital and spin periods as 3.464 $\pm$ 0.005 h and 863.74 $\pm$ 0.08 s,respectively. Using the second harmonic of the beat frequency, the beat periodis estimated as $\sim$928 s. These findings indicate that UU Col is a disc-feddominated disc-overflow accretor. For J0939, we establish the spin period as2671.8 $\pm$ 0.8 s and refine the provisionally suggested orbital period as8.49 $\pm$ 0.03 h. The absence of beat frequency in J0939 signifies that itmight be a pure disc-fed accretor; however, an X-ray study of this source willhelp to understand its true nature. |
| نوع الوثيقة: | conference paper http://purl.org/coar/resource_type/c_5794 conferenceObject peer reviewed |
| اللغة: | English |
| Relation: | https://popups.uliege.be/0037-9565/index.php?id=11826; urn:issn:0037-9565; urn:issn:1783-5720 |
| DOI: | 10.25518/0037-9565.11826 |
| URL الوصول: | https://orbi.uliege.be/handle/2268/316314 |
| حقوق: | open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
| رقم الأكسشن: | edsorb.316314 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.25518/0037-9565.11826 |
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