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Imaging-spectroscopy diagnosis of the giant sloshing spiral in the Virgo cluster with the Einstein Probe Follow-up X-ray Telescope

Fuente: arXiv

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Bibliographic Details
Main Authors:	Zheng, X., Jia, S., Li, C., Chen, Y., Yu, H., Feng, H., Xu, D., Liu, A., Song, L., Liu, C., Lu, F., Zhang, S., Yuan, W., Sanders, J., Wang, J., Chen, T., Cui, C., Cui, W., Feng, W., Gao, N., Guan, J., Han, D., Hou, D., Hu, H., Huang, M., Huo, J., Jin, C., Li, M., Li, W., Liu, Y., Luo, L., Ma, J., Ou, G., Pan, H., Wang, H., Wang, Y., Xu, J., Xu, Y., Yang, X., Yang, Y., Zhang, H., Zhang, J., Zhang, M., Zhang, Z., Zhao, H., Zhao, X., Zhao, Z., Zhu, P., Zhu, Y.
Format:	Preprint
Published:	2025
Subjects:	High Energy Astrophysical Phenomena Astrophysics of Galaxies
Online Access:	Acceder al recurso
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author	Zheng, X. Jia, S. Li, C. Chen, Y. Yu, H. Feng, H. Xu, D. Liu, A. Song, L. Liu, C. Lu, F. Zhang, S. Yuan, W. Sanders, J. Wang, J. Chen, T. Cui, C. Cui, W. Feng, W. Gao, N. Guan, J. Han, D. Hou, D. Hu, H. Huang, M. Huo, J. Jin, C. Li, M. Li, W. Liu, Y. Luo, L. Ma, J. Ou, G. Pan, H. Wang, H. Wang, J. Wang, J. Wang, Y. Xu, J. Xu, Y. Yang, X. Yang, Y. Zhang, H. Zhang, J. Zhang, M. Zhang, Z. Zhao, H. Zhao, X. Zhao, Z. Zhu, P. Zhu, Y.
author_facet	Zheng, X. Jia, S. Li, C. Chen, Y. Yu, H. Feng, H. Xu, D. Liu, A. Song, L. Liu, C. Lu, F. Zhang, S. Yuan, W. Sanders, J. Wang, J. Chen, T. Cui, C. Cui, W. Feng, W. Gao, N. Guan, J. Han, D. Hou, D. Hu, H. Huang, M. Huo, J. Jin, C. Li, M. Li, W. Liu, Y. Luo, L. Ma, J. Ou, G. Pan, H. Wang, H. Wang, J. Wang, J. Wang, Y. Xu, J. Xu, Y. Yang, X. Yang, Y. Zhang, H. Zhang, J. Zhang, M. Zhang, Z. Zhao, H. Zhao, X. Zhao, Z. Zhu, P. Zhu, Y.
contents	We performed deep X-ray observations of the Virgo cluster using the Einstein Probe Follow-up X-ray Telescope (EP-FXT) with a total exposure of 295 ks. Leveraging the large field of view (FoV) and low particle background of EP-FXT, the image reveals a giant spiral feature connecting the cold fronts in the northwest and southeast, forming a coherent structure consistent with earlier results from XMM-Newton and Suzaku. We also present two-dimensional maps of temperature, metallicity, and entropy across the Virgo Cluster, covering a FoV of approximately 28.5 arcmin. These maps clearly show a spiral structure with high density, low temperature, high metallicity, and low entropy. The results support a scenario where the spiral morphology arises from gas sloshing driven by a minor merger. Additionally, EP-FXT temperature measurements agree well with XMM-Newton data within uncertainties.
format	Preprint
id	arxiv_https___arxiv_org_abs_2507_07412
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Imaging-spectroscopy diagnosis of the giant sloshing spiral in the Virgo cluster with the Einstein Probe Follow-up X-ray Telescope Zheng, X. Jia, S. Li, C. Chen, Y. Yu, H. Feng, H. Xu, D. Liu, A. Song, L. Liu, C. Lu, F. Zhang, S. Yuan, W. Sanders, J. Wang, J. Chen, T. Cui, C. Cui, W. Feng, W. Gao, N. Guan, J. Han, D. Hou, D. Hu, H. Huang, M. Huo, J. Jin, C. Li, M. Li, W. Liu, Y. Luo, L. Ma, J. Ou, G. Pan, H. Wang, H. Wang, J. Wang, J. Wang, Y. Xu, J. Xu, Y. Yang, X. Yang, Y. Zhang, H. Zhang, J. Zhang, M. Zhang, Z. Zhao, H. Zhao, X. Zhao, Z. Zhu, P. Zhu, Y. High Energy Astrophysical Phenomena Astrophysics of Galaxies We performed deep X-ray observations of the Virgo cluster using the Einstein Probe Follow-up X-ray Telescope (EP-FXT) with a total exposure of 295 ks. Leveraging the large field of view (FoV) and low particle background of EP-FXT, the image reveals a giant spiral feature connecting the cold fronts in the northwest and southeast, forming a coherent structure consistent with earlier results from XMM-Newton and Suzaku. We also present two-dimensional maps of temperature, metallicity, and entropy across the Virgo Cluster, covering a FoV of approximately 28.5 arcmin. These maps clearly show a spiral structure with high density, low temperature, high metallicity, and low entropy. The results support a scenario where the spiral morphology arises from gas sloshing driven by a minor merger. Additionally, EP-FXT temperature measurements agree well with XMM-Newton data within uncertainties.
title	Imaging-spectroscopy diagnosis of the giant sloshing spiral in the Virgo cluster with the Einstein Probe Follow-up X-ray Telescope
topic	High Energy Astrophysical Phenomena Astrophysics of Galaxies
url	https://arxiv.org/abs/2507.07412