4 papers
A RELHIC twin candidate near the galaxy M51
Qingze Chen, Jie Wang, Yingjie Jing +7
We report the discovery of a pair of H I clouds near M51 (NGC 5194) using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). These clouds have no optical counterpart…
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…
Detection of HI filament: Pair Stacking vs. Filament Stacking
Yuxi Meng, Jie Wang, Yingjie Jing +2
The faint 21 cm signal emitted by neutral hydrogen in cosmic filaments is expected to be detectable. However, due to its weakness, stacking techniques are required. We assessed two…
HiFAST: An HI Data Calibration and Imaging Pipeline for FAST III. Standing Wave Removal
Chen Xu, Jie Wang, Yingjie Jing +13
The standing waves existed in radio telescope data are primarily due to reflections among the instruments, which significantly impact the spectrum quality of the Five-hundred-meter…