50 citations · 225 across the 20 of their papers we have counts for
20 papers
AEON-z5: A Candidate AGN-driven Outflow Enriching the Circumgalactic Medium at
Xiaoyang Wei, Zheng Cai, Shiwu Zhang +6
The dispersal of chemically enriched gas from galaxies into their surroundings is a key process in galaxy evolution, yet direct observational evidence at z>5 remains scarce. We pre…
First-star imprints in a metal-poor galaxy overdensity near the end of reionization
Zihao Li, Koki Kakiichi, Lise Christensen +24
The first generation of stars, known as Population III (Pop III), formed from primordial gas consisting solely of hydrogen and helium and is believed to have emerged only a few hun…
Constraining the nature of active galactic nuclei through circumgalactic Lya emission at z=2-3
Shiwu Zhang, Zheng Cai, Fabrizio Arrigoni Battaia +8
We present a comprehensive analysis of circumgalactic Lya nebulae around 59 unobscured and 26 obscured quasars at z=2-3, observed with the Keck Cosmic Web Imager (KCWI), to constra…
A dual AGN at z = 5.4 associated with a Lyman-alpha Nebula in the Center of a Cosmic Filament
Qiong Li, Christopher J. Conselice, Qiao Duan +9
Predictions from current theories and simulations suggest that dual AGN systems are exceedingly rare at high redshifts. The intense radiation and powerful outflows from AGNs regula…
AGNs in the extremely overdense galaxy region BOSS 1441: A Chandra observation
Jiahua Wu, Liming Dou, Zheng Cai +6
We present a Chandra/ACIS-I study of X-ray sources in BOSS 1441, a protocluster at that exhibits a prominent overdensity of Ly emitters (LAEs). Using a 45 ks obs…
Testing the AGN unified model with simulated emission lines from the circumgalactic medium (CGM)
Shiwu Zhang, Zheng Cai, Aura Obreja +5
The CGM around unobscured AGN has received much attention in recent years. Comparatively, nebulae associated with obscured AGN are less studied. Here, we simulate the Ly, H,…
A 13-Billion-Year View of Galaxy Growth: Metallicity Gradient Evolution from the Local Universe to with JWST and Archival Surveys
Zihao Li, Zheng Cai, Xin Wang +25
The galaxy gas-phase metallicity gradients have been extensively studied over the past four decades, both in the local and high-redshift universe, as they trace the baryon cycle an…
MAMMOTH-Subaru. II. Diverse Populations of Circumgalactic Ly Nebulae at Cosmic Noon
Mingyu Li, Haibin Zhang, Zheng Cai +23
Circumgalactic Lyman-alpha (Ly) nebulae are gaseous halos around galaxies exhibiting luminous extended Ly emission. This work investigates Ly nebulae from deep imaging of…
Searching for [CII] Emission from the First Sample of OI Absorption-Associated Galaxies with ALMA
Yunjing Wu, Zheng Cai, Jianan Li +13
We report the first statistical analyses of [CII] and dust continuum observations in six strong OI absorber fields at the end of the reionization epoch obtained by the Atacama Larg…
Circumgalactic Ly Nebulae in Overdense Quasar Pair Regions Observed with the Palomar Cosmic Web Imager
Jessica S. Li, Carlos J. Vargas, Donal O'Sullivan +8
The recent discovery of enormous Ly nebulae (ELANe), characterized by physical extents kpc and Ly luminosities erg s, provide a unique opportunity to…
Revealing the Gas Recycling in the Circumgalactic Medium (CGM) Utilizing a Luminous Ly Nebula Around a Type-II Quasar at z=2.6 with the Keck Cosmic Web Imager (KCWI)
Shiwu Zhang, Zheng Cai, Dandan Xu +7
How galaxies acquire material from the circumgalactic medium (CGM) is a key question in galaxy evolution. Recent observations and simulations show that gas recycling could be an im…
Inspiraling streams of enriched gas observed around a massive galaxy 11 billion years ago
Shiwu Zhang, Zheng Cai, Dandan Xu +19
Stars form in galaxies, from gas that has been accreted from the intergalactic medium. Simulations have shown that recycling of gas-the reaccretion of gas that was previously eject…
Bubble in the Whale: Identifying the Optical Counterparts and Extended Nebula for the Ultraluminous X-ray Sources in NGC 4631
Jing Guo, Jianfeng Wu, Hua Feng +9
We present a deep optical imaging campaign on the starburst galaxy NGC 4631 with CFHT/MegaCam. By supplementing the HST/ACS and Chandra/ACIS archival data, we search for the optica…
A strong He II 1640 emitter with extremely blue UV spectral slope at : presence of Pop III stars?
Xin Wang, Cheng Cheng, Junqiang Ge +12
Cosmic hydrogen reionization and cosmic production of first metals are major phase transitions of the universe occurring during the first billion years after the Big Bang, however…
Active View Planning for Visual SLAM in Outdoor Environments Based on Continuous Information Modeling
Zhihao Wang, Haoyao Chen, Shiwu Zhang +1
The visual simultaneous localization and mapping(vSLAM) is widely used in GPS-denied and open field environments for ground and surface robots. However, due to the frequent percept…
The Mass-Metallicity Relation of Dwarf Galaxies at Cosmic Noon from JWST Observations
Mingyu Li, Zheng Cai, Fuyan Bian +13
We present a study of the mass-metallicity relation (MZR) of 51 dwarf galaxies () at from the Abell 2744 and SMACS J0723-3732…
Edge-based Monocular Thermal-Inertial Odometry in Visually Degraded Environments
Yu Wang, Haoyao Chen, Yufeng Liu +1
State estimation in complex illumination environments based on conventional visual-inertial odometry is a challenging task due to the severe visual degradation of the visual camera…
The Identification of a Dusty Multiarm Spiral Galaxy at with JWST and ALMA
Yunjing Wu, Zheng Cai, Fengwu Sun +13
Spiral arms serve crucial purposes in star formation and galaxy evolution. In this paper, we report the identification of A2744-DSG-, a dusty, multiarm spiral galaxy at $z=3.05…
Massive molecular outflow and 100 kpc extended cold halo gas in the enormous Ly nebula of QSO 1228+3128
Jianrui Li, Bjorn H. C. Emonts, Zheng Cai +9
The link between the circum-galactic medium (CGM) and the stellar growth of massive galaxies at high- depends on the properties of the widespread cold molecular gas. As part of…
A [C II] 158m Emitter Associated with an OI Absorber at the End of the Reionization Epoch
Yunjing Wu, Zheng Cai, Marcel Neeleman +12
The physical and chemical properties of the circumgalactic medium (CGM) at have been studied successfully through the absorption in the spectra of background Quasi-Stel…