Ang Liu
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View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
We present the weak-lensing mass calibration and constrain the relation between the stellar mass of the brightest cluster galaxy (BCG), halo mass, and redshift ( M ⋆, BCG – M – z ) for a sample of 124 galaxy clusters and groups at redshift…
View article: The first SRG/eROSITA All-Sky Survey
The first SRG/eROSITA All-Sky Survey Open
The detection of the extended X-ray emission of the intracluster medium by the first SRG/eROSITA All-Sky Survey (eRASS1), combined with optical and near-infrared follow-up, resulted in the identification of more than 12 000 galaxy clusters…
View article: Decomposing Global AUC into Cluster-Level Contributions for Localized Model Diagnostics
Decomposing Global AUC into Cluster-Level Contributions for Localized Model Diagnostics Open
The Area Under the ROC Curve (AUC) is a widely used performance metric for binary classifiers. However, as a global ranking statistic, the AUC aggregates model behavior over the entire dataset, masking localized weaknesses in specific subp…
View article: THE THREE HUNDRED project: Gas properties outside of galaxy clusters with the WHIM contribution and detection
THE THREE HUNDRED project: Gas properties outside of galaxy clusters with the WHIM contribution and detection Open
We investigate the physical properties and detectability of warm-hot intergalactic medium (WHIM) gas with temperatures in the range 10 5 < T < 10 7 K around galaxy clusters using simulated galaxy clusters from T HE T HREE H UNDRED project.…
View article: The SRG/eROSITA all-sky survey
The SRG/eROSITA all-sky survey Open
We performed individual weak-lensing (WL) mass measurements for 78 eROSITA’s first All-Sky Survey (eRASS1) clusters in the footprint of Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) S19A. We did not adopt priors on the eRASS1 X-ray …
View article: Cross-correlation between soft X-rays and galaxies
Cross-correlation between soft X-rays and galaxies Open
This paper presents the construction and validation of complete stellar mass-selected, volume-limited galaxy samples using the Legacy Survey (data release 10) galaxy catalogs, covering ∼16 800 deg 2 of extra-galactic sky and extending to r…
View article: The SRG/eROSITA All-Sky Survey. The Weak-Lensing Mass Calibration and the Stellar Mass-to-Halo Mass Relation from the Hyper Suprime-Cam Subaru Strategic Program
The SRG/eROSITA All-Sky Survey. The Weak-Lensing Mass Calibration and the Stellar Mass-to-Halo Mass Relation from the Hyper Suprime-Cam Subaru Strategic Program Open
We present the weak-lensing mass calibration and constrain the BCG (brightest cluster galaxy) stellar-mass-to-halo-mass-and-redshift ($M_{\star,\mathrm{BCG}}-M-z$) relation for a sample of $124$ galaxy clusters and groups at redshift $0.1<…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
Recent advancements in methods used in wide-area surveys have demonstrated the reliability of the number density of galaxy clusters as a viable tool for precision cosmology. Beyond testing the current cosmological paradigm, cluster number …
View article: Discovery of large-scale radio emission enveloping the mini-halo in the most X-ray luminous galaxy cluster RX J1347.5–1145
Discovery of large-scale radio emission enveloping the mini-halo in the most X-ray luminous galaxy cluster RX J1347.5–1145 Open
Context. Diffuse radio sources, known as mini-halos and halos, are detected at the centres of galaxy clusters. These centralised diffuse sources are typically observed individually, with both appearing together only in rare cases. The orig…
View article: Mechanism analysis of 2 µm thulium-doped picosecond laser ablation on myocardial tissue in minimizing thermal injury
Mechanism analysis of 2 µm thulium-doped picosecond laser ablation on myocardial tissue in minimizing thermal injury Open
In this work, we introduced a fully fiber-integrated 2 µm thulium-doped laser system and conducted parametric analysis and mechanism studies on myocardial tissue ablation using this laser. Fresh porcine myocardial tissue served as the mode…
View article: Discovery of large-scale radio emission enveloping the mini-halo in the most X-ray luminous galaxy cluster RX~J1347.5-1145
Discovery of large-scale radio emission enveloping the mini-halo in the most X-ray luminous galaxy cluster RX~J1347.5-1145 Open
Diffuse radio sources, known as mini-halos and halos, are detected at the centres of galaxy clusters. These centralized diffuse sources are typically observed individually, with both appearing together only in rare cases. The origin of the…
View article: The warm-hot intergalactic medium in inter-cluster filaments
The warm-hot intergalactic medium in inter-cluster filaments Open
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 ob…
View article: The SRG/eROSITA All-Sky Survey: Large-scale view of the Centaurus cluster
The SRG/eROSITA All-Sky Survey: Large-scale view of the Centaurus cluster Open
Context. The Centaurus cluster is one of the brightest and closest clusters. Previous comprehensive studies were done only in its brightest part ( r < 30′), where the centers of the main substructures (Cen 30 and Cen 45) are located, and o…
View article: Cooling rate and turbulence in the intracluster medium of the cool-core cluster Abell 2667
Cooling rate and turbulence in the intracluster medium of the cool-core cluster Abell 2667 Open
Context. We present a detailed analysis of the thermal X-ray emission from the intracluster medium in the cool-core galaxy cluster Abell 2667 at z = 0.23. Aims. Our main goal is to detect low-temperature (< 2 keV) X-ray emitting gas associ…
View article: Decomposing Global AUC into Cluster-Level Contributions for Localized Model Diagnostics
Decomposing Global AUC into Cluster-Level Contributions for Localized Model Diagnostics Open
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey
The hot circumgalactic medium in the eROSITA All-Sky Survey Open
Aims The galaxy population shows a characteristic bimodal distribution based on the star formation activity and is sorted into star-forming or quiescent. These two subpopulations have a tendency to be located in different mass halos. The c…
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey III. Star-forming and quiescent galaxies
The hot circumgalactic medium in the eROSITA All-Sky Survey III. Star-forming and quiescent galaxies Open
The circumgalactic medium (CGM), as the gas repository for star formation, might contain the answer to the mysterious galaxy quenching and bimodal galaxy population origin. We measured the X-ray emission of the hot CGM around star-forming …
View article: Gas thermodynamics meets galaxy kinematics: Joint mass measurements for eROSITA galaxy clusters
Gas thermodynamics meets galaxy kinematics: Joint mass measurements for eROSITA galaxy clusters Open
The mass of galaxy clusters is a critical quantity for probing cluster cosmology and testing theories of gravity, but its measurement could be biased, given that assumptions are inevitable in order to make use of any approach. In this pape…
View article: Gas thermodynamics meets galaxy kinematics: Joint mass measurements for eROSITA galaxy clusters
Gas thermodynamics meets galaxy kinematics: Joint mass measurements for eROSITA galaxy clusters Open
The mass of galaxy clusters is a critical quantity for probing cluster cosmology and testing theories of gravity, but its measurement could be biased given assumptions are inevitable. In this paper, we employ and compare two mass proxies f…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
The evolution of the cluster mass function traces the growth of the linear density perturbations and can be utilized to constrain the parameters of cosmological and alternative gravity models. In this context, we present new constraints on…
View article: The warm-hot intergalactic medium in inter-cluster filaments -- A forecast for HUBS observations based on eRASS1 superclusters
The warm-hot intergalactic medium in inter-cluster filaments -- A forecast for HUBS observations based on eRASS1 superclusters Open
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 observation…
View article: The SRG/eROSITA all-sky survey
The SRG/eROSITA all-sky survey Open
The evolution of the cluster mass function traces the growth of linear density perturbations, providing valuable insights into the growth of structures, the nature of dark matter, and the cosmological parameters governing the Universe. The…
View article: Cosmic dance in the Shapley Concentration Core II. The uGMRT-MeerKAT view of filaments in the brightest cluster galaxies and tailed radio galaxies in the A3528 cluster complex
Cosmic dance in the Shapley Concentration Core II. The uGMRT-MeerKAT view of filaments in the brightest cluster galaxies and tailed radio galaxies in the A3528 cluster complex Open
This document contains the Appendix to the paper "Cosmic dance in the Shapley Concentration Core II. The uGMRT-MeerKAT view of filaments in the brightest cluster galaxies and tailed radio galaxies in the A3528 cluster complex" published on…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
Context . Galaxy groups lying between galaxies and galaxy clusters in the mass spectrum of dark matter halos play a crucial role in the evolution and formation of the large-scale structure. Their shallower potential wells compared to clust…
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey
The hot circumgalactic medium in the eROSITA All-Sky Survey Open
Context. The circumgalactic medium (CGM) provides the material needed for galaxy formation and influences galaxy evolution. The hot ( T > 10 6 K ) CGM is poorly detected around galaxies with stellar masses ( M * ) lower than 3 × 10 11 M ⊙ …
View article: The hot circumgalactic medium in the eROSITA All-Sky Survey
The hot circumgalactic medium in the eROSITA All-Sky Survey Open
Aims. Understanding how the properties of galaxies relate to the properties of the hot circum-galactic medium (CGM) around them can constrain galaxy evolution models. We aim to measure the scaling relations between the X-ray luminosity of …
View article: Assessing causality between obstructive sleep apnea with the dyslipidemia and osteoporosis: a Mendelian randomization study
Assessing causality between obstructive sleep apnea with the dyslipidemia and osteoporosis: a Mendelian randomization study Open
Purpose This study aims to assess the causal relationship between Obstructive Sleep Apnea (OSA), dyslipidemia, and osteoporosis using Mendelian Randomization (MR) techniques. Methods Utilizing a two-sample MR approach, the study examines t…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
Context. As the closest galaxy cluster, the Virgo Cluster is an exemplary environment for the study of the large-scale filamentary structure and physical effects that are present in cluster outskirts but absent from the more easily studied…
View article: The SRG/eROSITA All-Sky Survey: Exploring halo assembly bias with X-ray-selected superclusters
The SRG/eROSITA All-Sky Survey: Exploring halo assembly bias with X-ray-selected superclusters Open
Numerical simulations indicate that the clustering of dark matter halos is not only dependent on the halo masses but has a secondary dependence on other properties, such as the assembly history of the halo. This phenomenon, known as the ha…
View article: The SRG/eROSITA All-Sky Survey
The SRG/eROSITA All-Sky Survey Open
The first SRG/eROSITA All-Sky Survey (eRASS1) provides the largest intracluster medium-selected galaxy cluster and group catalog covering the western Galactic hemisphere. Compared to samples selected purely on X-ray extent, the sample puri…