تقرير
Elevated $p_{\rm astro}$: increased significances with multi-messenger coincidences
| العنوان: | Elevated $p_{\rm astro}$: increased significances with multi-messenger coincidences |
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| المؤلفون: | Veske, Doğa, Zhang, Albert, Márka, Zsuzsa, Márka, Szabolcs |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics General Relativity and Quantum Cosmology |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, General Relativity and Quantum Cosmology |
| الوصف: | Coincident multi-messenger observation of cosmic sources can offer numerous benefits. One significant advantage is enhancing the detection significance of separate detectors by correlating their data and assuming a joint emission. We have formulated an approach for updating the Bayesian posterior probability of an astrophysical origin, namely $p_{\rm astro}$, relying on multi-messenger coincidences. We demonstrated this with candidate coincident gravitational waves and high-energy neutrinos. Applying our method to the public data of candidate coincident high-energy neutrinos with subthreshold gravitational-wave triggers, we found that in the case of highly energetic neutrino coincidences, $p_{\rm astro}$ can increase from approximately $\sim 0.1$ to $\sim 0.9$. This marked improvement makes subthreshold detections much more confident. Comment: 7 pages, 1 figure, 1 table |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.08732 |
| رقم الأكسشن: | edsarx.2407.08732 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |