7 papers
Ly Escape in JWST/NIRCam F430M-Selected H Emitters at
Cheng Cheng, Zhen-Ya Zheng, Chunyan Jiang +8
We study the Ly escape fraction () in an H-selected sample of star-forming galaxies at , identified via JWST/NIRCam F430M excess and covered by arc…
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
The paper uses FAST and DESI data to stack HI spectra of galaxies in 36 nearby clusters, showing that neutral hydrogen content is already depleted out to five times the virial radi…
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 () detected by The FAST All Sky HI Survey (FASHI) project. Due to the faint and irregular morphology of…
Detecting Galactic Rings in the DESI Legacy Imaging Surveys with Semi-Supervised Deep Learning
Jianzhen Chen, Zhijian Luo, Cheng Cheng +3
The ring structures of disk galaxies are vital for understanding galaxy evolution and dynamics. However, due to the scarcity of ringed galaxies and challenges in their identificati…
Probing Obscured Star Formation in Galaxy Clusters Using JWST Medium Band Images: 3.3 PAH Emitter Sample in Abell 2744
Cheng Cheng, Xin Wang, Piaoran Liang +7
Star-forming galaxies in galaxy clusters play a crucial role in understanding the advanced stages of galaxy evolution within dense environments. We present a sample of 3.3m PAH…
FAST Reveals the Extended HI Halo and Accretion Signatures of NGC2683
Qian Jiao, Ming Zhu, Bernd Vollmer +5
We present the results of our recent HI observations conducted on the edge-on galaxy NGC2683 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). In comparison t…