Haiguang Xu

Quasinormal modes of a Kerr black hole embedded in a King-type cored dark matter halo

Yu Wang, Meilin Liu, Haiguang Xu

Abstract We investigate scalar quasinormal modes of a Kerr black hole immersed in a King-type cored dark matter halo within the slow-rotation approximation. Starting from a static King density profile, we construct the rotating spacetime via the Newman–Janis algorithm and derive the …

cn (code pays fourni par la source)

Probing the Hot Gaseous Halos of Milky Way–like Galaxies in the TNG50 Simulation

Zhijie 志杰 Zhang 张, Xiaoxia Zhang, Taotao Fang, Hui Li et autres

Abstract The origin and structure of the hot ( T ≳ 10 6 K) gaseous halo around Milky Way (MW)-mass galaxies provide a critical test for galaxy formation models. We perform a comprehensive comparison for a sample of MW analogs from the …

cn, us, it (code pays fourni par la source)

The Effect of Dark Matter Halo Annihilation on Gravitational Waves

Yu Wang, M D Liu, Haiguang Xu

We investigate the influence of dark matter halos surrounding supermassive black holes on the gravitational waves emitted by extreme mass ratio inspirals (EMRIs). Focusing on circular orbits, we model the orbital evolution by incorporating both gravitational-wave radiation reaction and dynamical friction induced …

cn (code pays fourni par la source)

Stability of Circular Orbits Around Kerr Black Holes Immersed in a Dehnen-Type Dark Matter Halo

Yu Wang, Meilin Liu, Haiguang Xu

We investigate the dynamical stability of circular orbits around a Kerr black hole embedded in a Dehnen-type dark matter halo. The effective spacetime metric of the combined system is constructed using the Newman–Janis algorithm, and the effective potential for test-particle motion in …

cn (code pays fourni par la source)

A Chandra view of SPT-CL J0217–5014: A massive galaxy cluster at a cosmic intersection at z = 0.53

Dan Hu, Shida Fan, Z. S. Yuan, Junjie Mao et autres

Context. Galaxy clusters trace the densest regions of the cosmic web and are crucial laboratories for studying the thermodynamic and chemical evolution of the intracluster medium (ICM). The massive galaxy cluster SPT-CL J0217−5014 ( z ∼ 0.53; M 500 ∼ 3 × …

uz, cn, us, nl (code pays fourni par la source)

Blind Correction of Ionospheric Disturbance in Orthogonal Synthetic Aperture Radio Telescope

Junfeng Wang, Haiguang Xu, Junhua Gu, Jingying Wang

A new technique is developed to correct ionospheric disturbance in orthogonal synthetic aperture radio telescope. The phase error of the visibility function is decomposed into two onedimensional phase errors, and therefore the phase correction of the visibility function is decomposed into two …

cn (code pays fourni par la source)

Fat mass and obesity-associated protein inhibits macrophage-mediated inflammation via the m6A demethylation of c-Jun in COPD

Haiguang Xu, Jiayuan Liang, Shuang Zhang, Qian He et autres

cn (code pays fourni par la source)

Comment on: The Effect of Intermittent Fasting Diet in Comparison With Low-Calorie Diet on Inflammation, Lipid Profile, Glycemic Index, Liver Fibrosis in Patients With Metabolic-Associated Fatty Liver Disease (MAFLD): A Randomized Controlled Trial

Haiguang Xu, Tuocen Fan, Yiyang Xu, Wenhao Li

cn (code pays fourni par la source)

Revealing a Major Merger in the Nearby Galaxy Group IC 1262 with Chandra Observations

Yu Wang, Jie Xia, Xu-Liang Fan, Haiguang Xu

Abstract We analyze the deep Chandra data of the nearby IC 1262 group, and find that the bow-shaped structure, located about 17 kpc (25″) east of the X-ray peak, is a cold front moving eastward with a Mach number of M = …

cn (code pays fourni par la source)

The warm-hot intergalactic medium in inter-cluster filaments

Yuanyuan Zhao, Haiguang Xu, Ang Liu, Xiaoyuan Zhang et autres

Context. Cosmological simulations indicate that nearly half of the baryons in the nearby Universe are in the warm-hot intergalactic medium (WHIM) phase, and about a half them reside in cosmic filaments connecting galaxy clusters. Recent observational studies using stacked survey data and …

cn, de, cz (code pays fourni par la source)

MeerKAT discovery of gigahertz radio emission extending from Abell 3017 towards Abell 3016

Dan Hu, Norbert Werner, Haiguang Xu, Q. Zheng et autres

Context. Cosmic filaments are vast, faint structures that connect galaxy clusters, often challenging to detect directly. However, filaments between pre-merger cluster pairs become more visible due to gas heating and compression while the clusters are approaching, enabling detection in X-ray and radio …

cz, cn, jp, au, nl, us (code pays fourni par la source)

A first measurement of galaxy merger rate increasing in dynamically colder protoclusters at cosmic noon

Shuang Liu, Xianzhong Zheng, Valentino González, Xiaohu Yang et autres

ABSTRACT The process of galaxy cluster formation likely leaves an imprint on the properties of its individual member galaxies. Understanding this process is essential for uncovering the evolutionary connections between galaxies and cosmic structures. Here, we study a sample of 10 protoclusters …

cn, tw, cl (code pays fourni par la source)