49 citations · 141 across the 13 of their papers we have counts for
14 papers
The FAST HI 21-cm Absorption Blind Survey. III. OH Absorption Search in the 21-cm Absorber Sample and Continued HI Absorption Search
Wenkai Hu, Yougang Wang, Jeremy Darling +11
We present the first blind search for OH 18-cm absorption with the Five-hundred-meter Aperture Spherical Telescope (FAST), conducted alongside the HI 21-cm absorption search. Our p…
Searching for axion dark matter gegenschein of the Vela supernova remnant with FAST
Wenxiu Yang, Yitian Sun, Yougang Wang +7
Axions are one of the leading dark matter candidates. If we are embedded in a Milky Way dark matter halo comprised of axions, their stimulated decay would enable us to observe a co…
FAST drift scan survey for HI intensity mapping: simulation on Bayesian-stacking-based HI mass function estimation
Jiaxin Wang, Yichao Li, Hengxing Pan +7
This study investigates the estimation of the neutral hydrogen (HI) mass function (HIMF) using a Bayesian stacking approach with simulated data for the Five-hundred-meter Aperture…
CRAFTS for HI cosmology: I. data processing pipeline and validation tests
Wenxiu Yang, Laura Wolz, Yichao Li +20
We present the calibration procedures and validation of source measurement with the data of the Commensal Radio Astronomy FAST Survey (CRAFTS) for \HI intensity mapping by the Five…
The FAST HI 21-cm absorption blind survey. II. -- Statistic Exploration for Associated and Intervening systems
Wenkai Hu, Yougang Wang, Yichao Li +12
We present an extragalactic HI 21-cm absorption lines catalog from a blind search at z 0.35, using drift-scan data collected in 1325.6 hours by the ongoing Commensal Ra…
Environmental effects on satellite galaxies from the perspective of cold gas
Hongxing Chen, Lizhi Xie, Jie Wang +4
Environment plays a pivotal role in shaping the evolution of satellite galaxies. Analyzing the properties related to the cold gas phase of satellites provides insights into unravel…
FAST drift scan survey for HI intensity mapping: I. preliminary data analysis
Yichao Li, Yougang Wang, Furen Deng +15
This work presents the initial results of the drift-scan observation for the neutral hydrogen (HI) intensity mapping survey with the Five-hundred-meter Aperture Spherical radio Tel…
Detections of 21-cm absorption with a blind FAST survey at z 0.09
Wenkai Hu, Yougang Wang, Yichao Li +10
We present the early science results from a blind search of the extragalactic HI 21-cm absorption lines at z 0.09 with the drift-scan observation of the Five-hundred-me…
CONCERTO: a breakthrough in wide field-of-view spectroscopy at millimeter wavelengths
Alessandro Fasano, Alexandre Beelen, Alain Benoit +37
CarbON CII line in post-rEionization and ReionizaTiOn (CONCERTO) is a low-resolution spectrometer with an instantaneous field-of-view of 18.6 arcmin, operating in the 130-310 GHz t…
1/f Noise Analysis for FAST HI Intensity Mapping Drift-Scan Experiment
Wenkai Hu, Yichao Li, Yougang Wang +8
We investigate the 1/f noise of the Five-hundred-meter Aperture Spherical Telescope (FAST) receiver system using drift-scan data from an intensity mapping pilot survey. All the 19…
The Atomic Hydrogen Content of Galaxies as a function of Group-Centric Radius
Wenkai Hu, Luca Cortese, Lister Staveley-Smith +5
We apply a spectral stacking technique to Westerbork Synthesis Radio Telescope observations to measure the neutral atomic hydrogen content (HI) of nearby galaxies in and around gal…
The cosmic atomic hydrogen mass density as a function of mass and galaxy hierarchy from spectral stacking
Wenkai Hu, Barbara Catinella, Luca Cortese +5
We use spectral stacking to measure the contribution of galaxies of different masses and in different hierarchies to the cosmic atomic hydrogen (HI) mass density in the local Unive…
Forecast for FAST: from Galaxies Survey to Intensity Mapping
Wenkai Hu, Xin Wang, Fengquan Wu +3
The Five-Hundred-Meter Aperture Spherical Radio Telescope(FAST) is the largest single-dish radio telescope in the world. In this paper, we make forecast on the FAST HI large scale…
An accurate low-redshift measurement of the cosmic neutral hydrogen density
Wenkai Hu, Laura Hoppmann, Lister Staveley-Smith +7
Using a spectral stacking technique, we measure the neutral hydrogen (HI) properties of a sample of galaxies at across 35 pointings of the Westerbork Synthesis Radio Tel…