دورية أكاديمية
Photon region and shadow of a rotating 5D black string
| العنوان: | Photon region and shadow of a rotating 5D black string |
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| المؤلفون: | Zi-Yu Tang, Xiao-Mei Kuang, Bin Wang, Wei-Liang Qian |
| المصدر: | European Physical Journal C: Particles and Fields, Vol 83, Iss 9, Pp 1-15 (2023) |
| بيانات النشر: | SpringerOpen, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| مصطلحات موضوعية: | Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| الوصف: | Abstract To explore the possible clues for the extra dimension from the Event Horizon Telescope (EHT) observations, we study the shadow of the rotating 5D black string in General Relativity (GR). Instead of investigating the shadow in the effective 4D theory, we concern the motion of photons along the extra dimension z with a conserved momentum $$P_z$$ P z , which appears as an effective mass in the geodesic equations of photons. The existence of $$P_z$$ P z enlarges the photon regions and the shadow of the rotating 5D black string while it has slight impact on the distortion. The EHT observations of M87* and SgrA* can rule out the black string model with an infinite length along the extra dimension, and support the hypothesis that the extra dimension is compact to avoid the Gregory-Laflamme (GL) instability, where the length of the black string/the compact extra dimension can be constrained as $$2.03125~\textrm{mm} \lesssim \ell \lesssim 2.6~\textrm{mm}$$ 2.03125 mm ≲ ℓ ≲ 2.6 mm and $$2.28070~\textrm{mm} \lesssim \ell \lesssim 2.6~\textrm{mm}$$ 2.28070 mm ≲ ℓ ≲ 2.6 mm respectively. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1434-6052 |
| Relation: | https://doaj.org/toc/1434-6052 |
| DOI: | 10.1140/epjc/s10052-023-12015-7 |
| URL الوصول: | https://doaj.org/article/9135e49411cb406e92f51ee90ecee4c3 |
| رقم الأكسشن: | edsdoj.9135e49411cb406e92f51ee90ecee4c3 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 14346052 |
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| DOI: | 10.1140/epjc/s10052-023-12015-7 |