Report
Magnetar central engine powering the energetic GRB 210610B ?
| العنوان: | Magnetar central engine powering the energetic GRB 210610B ? |
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| المؤلفون: | Ror, Amit Kumar, Pandey, Shashi B., Gupta, Rahul, Aryan, Amar |
| المصدر: | Bulletin de la Soci\'et\'e Royale des Sciences de Li\`ege, 2024, 93(2), 709-718 |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | The bright GRB 210610B was discovered simultaneously by Fermi and Swift missions at redshift 1.13. We utilized broadband Fermi-GBM observations to perform a detailed prompt emission spectral analysis and to understand the radiation physics of the burst. Our analysis displayed that the low energy spectral index ($\alpha_{\rm pt}$) exceeds boundaries expected from the typical synchrotron emission spectrum (-1.5,-0.67), suggesting additional emission signature. We added an additional thermal model with the typical Band or CPL function and found that CPL + BB function is better fitting to the data, suggesting a hybrid jet composition for the burst. Further, we found that the beaming corrected energy (E$_{\rm \gamma, \theta_{j}}$ = 1.06 $\times$ 10$^{51}$ erg) of the burst is less than the total energy budget of the magnetar. Additionally, the X-ray afterglow light curve of this burst exhibits achromatic plateaus, adding another layer of complexity to the explosion's behavior. Interestingly, we noted that the X-ray energy release during the plateau phase (E$_{\rm X,iso}$ = 1.94 $\times$ 10$^{51}$ erg) is also less than the total energy budget of the magnetar. Our results indicate the possibility that a magnetar could be the central engine for this burst. Comment: Accepted for publication in the Bulletin of Liege Royal Society of Sciences as a part of the 3rd BINA workshop, March 22-24, 2023, 10 pages, 2 figures, and 2 table |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.25518/0037-9565.11848 |
| URL الوصول: | http://arxiv.org/abs/2406.01576 |
| رقم الانضمام: | edsarx.2406.01576 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.25518/0037-9565.11848 |
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