activity
20232026
most citedFrom Halos to Galaxies. VI. Improved halo mass estimation for SDSS groups and measurement of the halo mass function

9 citations · 12 across the 19 of their papers we have counts for

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18 papers · 1 filter

astro-ph.GA2026

Fountain pattern of baryon cycle revealed in galaxy ecosystems

Chengyu Ma, Yangyao Chen, Enci Wang +11

Baryons in galaxy ecosystems are believed to undergo continuous cycles of inflow and outflow, forming fountain-like patterns that encode key information about how galaxies acquire…

astro-ph.GA2026

No Detectable One-halo Galactic Conformity Signal with Halo-mass Estimates Consistent with Weak-lensing Constraints

Dingyi Zhao, Yingjie Peng, Luis C. Ho +17

One-halo galactic conformity is the tendency for satellites in halos with quenched centrals to have lower star-formation activity than those in halos with star-forming centrals at…

astro-ph.GA2026

Observational Evidence for Anisotropic Metal Excess around Galaxies

Cheqiu Lyu, Enci Wang, Zeyu Chen +4

The exchange of matter and energy between galaxies and their surroundings drives the cosmic baryon cycle, yet mapping metal transport remains an observational challenge. While simu…

astro-ph.GA2026

Cooler Phases of the Circumgalactic Medium Are More Centrally Concentrated: Constraints from Multiphase Absorption Lines

Weiwen Kong, Zeyu Chen, Enci Wang +7

We present a systematic study of the multiphase circumgalactic medium (CGM) around galaxies and quasars, traced by Ca II , Mg II , and C IV $λ…

astro-ph.GA2025

First Statistical Detection of MgII-traced Cool Gas Outflows with JWST Towards Cosmic Dawn

Cheqiu Lyu, Haoran Yu, Enci Wang +9

Galactic-scale outflows are a crucial component of galaxy evolution, yet their properties in the early universe remain poorly constrained. We present the first statistical investig…

astro-ph.GA2025★ 1 cited

Stellar feedback drives the baryon deficiency in low-mass galaxies

Haoran Yu, Enci Wang, Zeyu Chen +8

Stellar feedback, as a key process regulating the baryon cycle, is thought to greatly redistribute baryonic material inside and outside the dark matter halos (DMHs), however the ob…

astro-ph.GA2025

Transition from Outside-in to Inside-Out at : Evidence from Radial Profiles of Specific Star Formation Rate based on JWST/HST

Jie Song, Enci Wang, Cheng Jia +7

By combining high-resolution observations from JWST and HST, we have measured the stellar masses, star formation rates (SFRs), and multi-wavelength morphologies of galaxies in the…

astro-ph.GA2025

Central Concentration and Escape of Ionizing Photons in Galaxies at the Epoch of Reionization

Cheqiu Lyu, Enci Wang, Junxian Wang +9

Compact, low-mass galaxies with strong nebular emission are considered promising candidates for efficient ionizing photon production and escape. We present a spatially resolved ana…

astro-ph.GA2025

The Cosmic Evolution and Spatial Distribution of Multiphase Gas associated with QSOs

Zeyu Chen, Enci Wang, Hu Zou +10

We investigate the multi-phase gas surrounding QSOs traced by 33 absorption lines (e.g., Ly, C\,\textsc{iv}, Fe\,\textsc{ii}, Mg\,\textsc{ii}, etc.) in the stacked spectra of ba…

astro-ph.GA2025

Potential-Driven Metal Cycling: JADES Census of Gas-Phase Metallicity for galaxies at 1 < z < 7

Cheng Jia, Enci Wang, Cheqiu Lyu +9

The gravitational potential is established as a critical determinant of gas-phase metallicity (12+log(O/H)) in low-redshift galaxies, whereas its influence remains unconfirmed at h…

astro-ph.GA2025

The critical role of dark matter halos in driving star formation

Jing Dou, Yingjie Peng, Qiusheng Gu +13

Understanding the physical mechanisms that drive star formation is crucial for advancing our knowledge of galaxy evolution. We explore the interrelationships between key galaxy pro…

astro-ph.GA2025

Central Velocity Dispersion being the Primary Driver of Abundance Patterns in Quenched Galaxies

Haixin Li, Enci Wang, Cheqiu Lyu +6

The element abundances of galaxies provide crucial insights into their formation and evolution. Using high-resolution IFU data from the MaNGA survey, we analyze the central spectra…

astro-ph.GA2025

Dominant Role of Coplanar Inflows in Driving Disk Evolution Revealed by Gas-Phase Metallicity Gradients

Cheqiu Lyu, Enci Wang, Hongxin Zhang +8

Using spatially resolved spectroscopic data from the MaNGA sample, we investigate the parameters influencing the radial gradients of gas-phase metallicity ($\nabla\log(\mathrm{O/H}…

astro-ph.GA2024

The HI reservoir in central spiral galaxies and the implied star formation process

Jing Dou, Yingjie Peng, Qiusheng Gu +14

The cold interstellar medium (ISM) as the raw material for star formation is critical to understanding galaxy evolution. It is generally understood that galaxies stop making stars…

astro-ph.GA2024★ 9 cited

From Halos to Galaxies. VI. Improved halo mass estimation for SDSS groups and measurement of the halo mass function

Dingyi Zhao, Yingjie Peng, Yipeng Jing +18

In CDM cosmology, galaxies form and evolve in their host dark matter (DM) halos. Halo mass is crucial for understanding the halo-galaxy connection. The abundance matching (AM) t…

astro-ph.GA2024★ 2 cited

From Halos to Galaxies. X: Decoding Galaxy SEDs with Physical Priors and Accurate Star Formation History Reconstruction

Zeyu Gao, Yingjie Peng, Kai Wang +18

The spectral energy distribution (SED) of galaxies is essential for deriving fundamental properties like stellar mass and star formation history (SFH). However, conventional method…

astro-ph.GA2024

From Halos to Galaxies. IX. Estimate of Halo Assembly History for SDSS Galaxy Groups

Cheqiu Lyu, Yingjie Peng, Yipeng Jing +15

The properties of the galaxies are tightly connected to their host halo mass and halo assembly history. Accurate measurement of the halo assembly history in observation is challeng…

astro-ph.GA2023

From Halos to Galaxies. VII. The Connections Between Stellar Mass Growth History, Quenching History and Halo Assembly History for Central Galaxies

Cheqiu Lyu, Yingjie Peng, Yipeng Jing +12

The assembly of galaxies over cosmic time is tightly connected to the assembly of their host dark matter halos. We investigate the stellar mass growth history and the chemical enri…