Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Zhu, Zhenlin"'
The outskirts of galaxy clusters host complex interactions between the intra-cluster and circumcluster media. During cluster evolution, ram-pressure stripped gas clumps from infalling substructures break the uniformity of the gas distribution, which
Externí odkaz:
http://arxiv.org/abs/2306.10101
Publikováno v:
A&A 678, A122 (2023)
Past observations and simulations predict an increasingly inhomogeneous gas distribution towards the outskirts of galaxy clusters, but the exact properties of such gas clumping are not yet well known. The outskirts of Abell 133 benefit from deep X-ra
Externí odkaz:
http://arxiv.org/abs/2306.10110
Autor:
Mao, Junjie, Zhou, Ping, Simionescu, Aurora, Su, Yuanyuan, Fukazawa, Yasushi, Gu, Liyi, Akamatsu, Hiroki, Zhu, Zhenlin, de Plaa, Jelle, Mernier, Francois, Kaastra, Jelle S.
Hot atmospheres of massive galaxies are enriched with metals. Elemental abundances measured in the X-ray band have been used to study the chemical enrichment of supernova remnants, elliptical galaxies, groups and clusters of galaxies. Here we measure
Externí odkaz:
http://arxiv.org/abs/2107.14500
Autor:
Zhu, Zhenlin, Simionescu, Aurora, Akamatsu, Hiroki, Zhang, Xiaoyuan, Kaastra, Jelle S., de Plaa, Jelle, Urban, Ondrej, Allen, Steven W., Werner, Norbert
Publikováno v:
A&A 652, A147 (2021)
Previous X-ray studies of the Perseus Cluster, consisting of 85 Suzaku pointings along eight azimuthal directions, revealed a particularly steep decrease in the projected temperature profile near the virial radius (~r200) towards the northwest (NW).
Externí odkaz:
http://arxiv.org/abs/2107.01663
Autor:
Zhu, Zhenlin, Li, Zhiyuan, Ciurlo, Anna, Morris, Mark R., Zhang, Mengfei, Do, Tuan, Ghez, Andrea M.
A small cluster of massive stars residing in the Galactic center, collectively known as IRS13E, is of special interest due to its close proximity to Sgr A* and the possibility that an embedded intermediate-mass black hole (IMBH) binds its member star
Externí odkaz:
http://arxiv.org/abs/2003.10311
Autor:
Zhang, Shuo, Zhu, Zhenlin, Li, Hui, Pasham, Dheeraj, Li, Zhiyuan, Clavel, Maica, Baganoff, Frederick K., Perez, Kerstin, Mori, Kaya, Hailey, Charles J.
One of the most unique phenomena in the Galactic center region is the existence of numerous long and narrow filamentary structures within a few hundred parsecs of Sgr A$^{\star}$. While more than one than one hundred radio filaments have been reveale
Externí odkaz:
http://arxiv.org/abs/2003.03453
Akademický článek
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Publikováno v:
2019, ApJ, 882, 164
Previous X-ray observations toward the Nuclear Star Cluster (NSC) at the Galactic center have discovered thousands of point sources, most of which were believed to be cataclysmic variables (CVs), i.e., a white dwarf (WD) accreting from a low-mass com
Externí odkaz:
http://arxiv.org/abs/1907.09086
Based on archival {\it Chandra} observations with a total exposure of 1.3 Ms, we study X-ray point sources in the Fornax cluster of galaxies, with the primary aim of searching for intra-cluster X-ray source populations. We detect 1177 point sources o
Externí odkaz:
http://arxiv.org/abs/1902.03733
Akademický článek
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