Chuan-peng Zhang

FASHI DR2: A Catalog of 132 Low-Redshift HI 21 cm Absorption Systems

Chuan-Peng Zhang, Ming Zhu, Peng Jiang +7

We present an untargeted survey of 21 cm HI absorption systems based on the second data release of the FAST All Sky HI survey (FASHI DR2), covering approximately 19,500 deg $^{2}$ a…

An HI study of a large sample of ultra-diffuse galaxies

Ruilei Zhou, Ming Zhu, Chuan-Peng Zhang +5

By cross-matching the SMUDGes catalog with the FASHI and ALFALFA HI surveys, we construct an HI-detected sample of 112 ultra-diffuse galaxies (UDGs) and 48 low-surface-brightness (…

HI Depletion Begins Well Beyond the Virial Radius: A FAST Stacking Study of 36 Galaxy Clusters to 5R200

Cheng Cheng, Chuan-Peng Zhang, Edo Ibar +10

We present a stacking study of the neutral atomic hydrogen (HI) content in and around 36 local galaxy clusters at $z < 0.07$ , using a combination of the FAST all sky HI survey (FASHI…

A Catalog of Compact High-Velocity Clouds from the FAST All-Sky HI Survey (FASHI) DR2

Jin-Long Xu, Chuan-Peng Zhang, Xiao-Lan Liu +3

High-velocity clouds (HVCs) -- especially compact HVCs (CHVCs) -- are thought to serve as gaseous tracers of dark-matter-dominated subhalos, providing a crucial empirical link betw…

The FAST All Sky HI Survey DR2: the FASHI Catalog and the HI Mass Function

Chuan-Peng Zhang, Ming Zhu, Peng Jiang +8

The FAST All Sky HI Survey (FASHI) conducted with the Five-hundred-meter Aperture Spherical radio Telescope (FAST) has mapped $\sim 19500 deg^{2}$ of the sky north of DEC $…

The nature of Cloud-9: a compact core embedded in a diffuse envelope

Ruilei Zhou, Ming Zhu, Chuan-Peng Zhang +1

We present new HI observations of Cloud-9 with the Five-hundred-meter Aperture Spherical Telescope (FAST), measuringvtotal flux of 0.35 +- 0.03 Jy km/s. Combined with Very Large Ar…

Weak Evolution of Cosmic Atomic Hydrogen over the Past 4.5 Billion Years

Chuan-Peng Zhang, Hong Guo, Yizhou Gu +49

The cosmic star formation rate density (CSFRD) has declined sharply toward the present day, but the roles of the atomic and molecular gas reservoirs remain uncertain. We measure th…

A Spatially Resolved HI Survey of Seyfert Galaxies: the Role of AGN Feedback in Shaping Atomic Gas Reservoirs

Ruitian Li, Xin Wang, Daizhong Liu +19

Active galactic nucleus (AGN) feedback is a key ingredient in galaxy evolution, yet its impact on the cold atomic gas reservoir -- the neutral hydrogen (HI) phase -- remains poorly…

Optical identification of the FASHI sources: toward the extended Local Volume

Aleksandra E. Nazarova, Dmitry I. Makarov, Igor D. Karachentsev +3

We extracted a list of 662 nearby (within $\sim 16$ Mpc) HI-detection sources from the Five-hundred-meter Aperture Spherical radio Telescope (FAST) All Sky HI Survey (FASHI) and mad…

\HI 21-cm Line Properties of the Nearby LIRG IRAS 04296+2923

Guixiang Feng, Zhongzu Wu, Chuanpeng Zhang +1

We present an analysis of archival Very Large Array (VLA) and Five-hundred-meter Aperture Spherical radio Telescope (FAST) \HI\ 21 cm data, together with archival multi-band radio…

Gas Accretion from a Neighbouring Galaxy Fuels the Low-luminosity AGN in NGC 4278

Jin-Long Xu, Nai-Ping Yu, Ming Zhu +4

How a seemingly `dead' host galaxy provides fuel for its active galactic nuclei (AGN) remains an unresolved problem. Using the Five-hundred-meter Aperture Spherical radio Telescope…

HI-detected Dwarf Galaxies in the FASHI Survey: Insights from Single- and Double-Peaked Emission-Line Samples

Cheng Cheng, Jia-Sheng Huang, Wei Du +4

We present a sample of low HI mass dwarf galaxies ( $M_{HI} < 1 0^{8} M_{⊙}$ ) detected by The FAST All Sky HI Survey (FASHI) project. Due to the faint and irregular morphology of…

Eleven Local Volume dwarf galaxies in the FASHI survey

Aleksandra Nazarova, Dmitry Makarov, Igor Karachentsev +2

We determined HI parameters for eleven nearby late-type dwarf galaxies using FASHI data cubes, despite the fact that the first version of the FASHI catalog does not list any radio…

Deep neutral hydrogen observations of the early-type galaxy NGC 2768: collided by a newly discovered satellite galaxy?

Nai-Ping Yu, Ming Zhu, Jin-Long Xu +3

We present the results of a deep neutral hydrogen (Hi) observation of the early-type galaxy NGC 2768 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Leverag…

Discovery of a high-velocity cloud of the Milky Way as a potential dark galaxy

Xiao-Lan Liu, Jin-Long Xu, Peng Jiang +6

High-velocity clouds (HVCs) are composed of neutral hydrogen (HI) moving at velocities that deviate from the general rotational motion of the Milky Way. Currently, the origins of t…

FAST Discovery of A Gas-rich and Ultra-faint Dwarf Galaxy: KK153

Jin-Long Xu, Ming Zhu, Nai-Ping Yu +4

Based on a high-sensitivity HI survey using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we identified an isolated HI cloud with a system velocity of ~127.0 km…

astro-ph.GA2024★ 10 cited

Formation of the dark-matter deficient S0 galaxy NGC 4111 under the tidal interactions

Mei Ai, Ming Zhu, Nai-ping Yu +8

We present the high-sensitivity and large-scale atomic hydrogen (HI) observations towards lenticular (S0) galaxy NGC 4111 using the Five-hundred-meter Aperture Spherical Radio Tele…

astro-ph.GA2025★ 3 cited

The FAST Ursa Major supergroup HI survey (FUMaS): catalog and HI mass function

Haiyang Yu, Ming Zhu, Chuan-Peng Zhang +2

Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we have performed an Ursa Major supergroup HI Survey (FUMaS) covering the entire UMa region centered at RA=1…

The HI Mass Function of the Local Universe: Combining Measurements from HIPASS, ALFALFA and FASHI

Wenlin Ma, Hong Guo, Haojie Xu +6

We present the first HI mass function (HIMF) measurement for the recent FAST All Sky HI (FASHI) survey and the most complete measurements of HIMF in the local universe thus far. We…

New HI observations Toward the NGC 5055 Galaxy Group with FAST

Xiao-Lan Liu, Ming Zhu, Jin-Long Xu +5

We report a new high-sensitivity HI mapping observation of the NGC 5055 galaxy group over an area of $1 .^{\circ} 5 \times 0 .^{\circ} 75$ with the Five-hundred-meter Aperture Spherical radi…

Exploring the origin of cold gas and star formation in a rare population of strongly bulge-dominated early-type Galaxies

Fujia Li, Enci Wang, Ming Zhu +7

We analyze the properties of a rare population, the strongly bulge-dominated early-type galaxies (referred to as sBDEs) with significant HI gas, using the databases from the FAST A…

FAST detection of OH emission in the carbon-rich planetary nebula NGC 7027

Xu-Jia Ouyang, Yong Zhang, Chuan-Peng Zhang +8

We present the first detection of the ground-state OH emission line at 1612 MHz toward the prototypical carbon-rich planetary nebula (PN) NGC 7027, utilizing the newly installed ul…