activity
20202026
most citedStatistical Analysis of H I Profile Asymmetry and Shape for Nearby Galaxies

34 citations · 92 across the 11 of their papers we have counts for

collaborators

12 papers

astro-ph.GA2026

Lower central dark matter densities in nearby galaxies than predicted by simulations

Yu Lei, Ling Zhu, Meng Yang +9

Baryonic feedback in hydrodynamical simulations is typically invoked to alleviate the core--cusp problem in dwarf galaxies. Yet baryonic processes also induce adiabatic contraction…

astro-ph.GA2026

The FAST Hundred-Deg HI Deep (HD) Survey: Early Results from the Pilot Survey

Chen Xu, Yingjie Jing, Jie Wang +26

The Hundred-deg HI Deep (HD) survey carried out with the Five-hundred-meter Aperture Spherical Telescope (FAST) is planned to map a contiguous region within the DESI DR1 fo…

astro-ph.GA2026

Insights into the Physical Nature of Polar Ring Galaxies from H I Observations

Niankun Yu, Han Zheng, Chao-Wei Tsai +10

Polar ring galaxies (PRGs) host an outer ring of gas and stars oriented nearly perpendicular to the main stellar body. They represent extreme examples of misaligned systems and pro…

astro-ph.GA2025★ 1 cited

Dark matter in ALFALFA galaxies: Investigating galaxy-halo connection

Meng Yang, Ling Zhu, Niankun Yu +4

This paper aims to investigate the galaxy-halo connection using a large sample of individual galaxies with integrated spectra. We determine their dark matter conten…

astro-ph.GA2025

Investigating the Impacts of AGN Activities on Dwarf Galaxies with FAST HI Observations

Hong-Ying Chen, Chao-Wei Tsai, Pei Zuo +9

We present the results of Hi line observations towards 26 Active Galactic Nuclei (AGN)-hosting and one star-forming dwarf galaxies (Mstar < 10^9.5 Msun) with the 19-beam spectral l…

astro-ph.GA2025

Deep Andromeda JCMT-SCUBA2 Observations. The Submillimeter Maps and Giant Molecular Clouds

Sihan Jiao, Jingwen Wu, Hauyu Baobab Liu +23

We have carried out unprecedentedly deep, nearly confusion-limited JCMT-SCUBA2 mapping observations on the nearest spiral galaxy, M31 (Andromeda). The 850 m image with a 5…

astro-ph.GA2025

Linking Electron Density with Elevated Star Formation Activity from to

Sijia Li, Si-Yue Yu, Luis C. Ho +7

The interstellar medium (ISM) in high-redshift galaxies exhibits significantly higher electron densities () than in the local universe. To investigate the origin of this…

astro-ph.GA2025

The impact of external gas accretion on the distribution of HI gas in galaxies

Qianhan Zhang, Min Bao, Yanmei Chen +3

Using the data from Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) and HI-MaNGA surveys, we build a sample of 37 gas-star misaligned galaxies with robust HI detections…

astro-ph.GA2024★ 9 cited

The ALMaQUEST Survey XV: The Dependence of the Molecular-to-Atomic Gas Ratios on Resolved Optical Diagnostics

Niankun Yu, Zheng Zheng, Chao-Wei Tsai +14

The atomic-to-molecular gas conversion is a critical step in the baryon cycle of galaxies, which sets the initial conditions for subsequent star formation and influences the multi-…

astro-ph.GA2022★ 34 cited

Statistical Analysis of H I Profile Asymmetry and Shape for Nearby Galaxies

Niankun Yu, Luis C. Ho, Jing Wang +1

We present a uniform analysis of the integrated profile of the H I emission line of 29,958 nearby () galaxies extracted from the ALFALFA 21 cm survey. We apply the curve-…

astro-ph.GA2022★ 15 cited

Massive Galaxy Mergers Have Distinctive Global HI Profiles

Pei Zuo, Luis C. Ho, Jing Wang +2

The global 21 cm HI emission-line profile of a galaxy encodes valuable information on the spatial distribution and kinematics of the neutral atomic gas. Galaxy interactions signifi…

astro-ph.GA2020★ 33 cited

On the Determination of Rotation Velocity and Dynamical Mass of Galaxies Based on Integrated H I Spectra

Niankun Yu, Luis C. Ho, Jing Wang

The integrated 21 cm H I emission profile of a galaxy encodes valuable information on the kinematics, spatial distribution, and dynamical state of its cold interstellar medium. The…