تقرير
Weak-Lensing Analysis of the Complex Cluster Merger Abell 746 with Subaru/Hyper Suprime-Cam
| العنوان: | Weak-Lensing Analysis of the Complex Cluster Merger Abell 746 with Subaru/Hyper Suprime-Cam |
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| المؤلفون: | HyeongHan, Kim, Cho, Hyejeon, Jee, M. James, Wittman, David, Cha, Sangjun, Lee, Wonki, Finner, Kyle, Rajpurohit, Kamlesh, Brüggen, Marcus, Forman, William, Jones, Christine, van Weeren, Reinout, Botteon, Andrea, Lovisari, Lorenzo, Stroe, Andra, Domínguez-Fernández, Paola, O'Sullivan, Ewan, Vrtilek, Jan |
| المصدر: | 2024 ApJ 962 100 |
| سنة النشر: | 2023 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Astrophysics of Galaxies |
| الوصف: | The galaxy cluster Abell 746 (A746; $z$=0.214), featuring a double radio relic system, two isolated radio relics, a possible radio halo, disturbed V-shaped X-ray emission, and intricate galaxy distributions, is a unique and complex merging system. We present a weak-lensing analysis of A746 based on wide-field imaging data from Subaru/Hyper Suprime-Cam observations. The mass distribution is characterized by a main peak which coincides with the center of the X-ray emission. At this main peak, we detect two extensions toward the north and west, tracing the cluster galaxy and X-ray distributions. Despite the ongoing merger, our estimate of the A746 global mass $M_{500}=4.4\pm1.0\times10^{14}~M_{\odot}$ is consistent with the previous results from SZ and X-ray observations. We conclude that reconciling the distributions of mass, galaxies, and intracluster medium with the double radio relic system and other radio features remains challenging. Comment: Published in ApJ |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/1538-4357/ad1bcc |
| URL الوصول: | http://arxiv.org/abs/2311.00643 |
| رقم الأكسشن: | edsarx.2311.00643 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/1538-4357/ad1bcc |
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