306 citations · 2.6k across the 73 of their papers we have counts for
73 papers
Mapping the Milky Way's stellar halo with 2D data
Anda Chen, Zhigang Li, Yougang Wang +3
We propose a new method for measuring the spatial density distribution of the stellar halo of the Milky Way. Our method is based on a pairwise statistic of the distribution of star…
Making hot Jupiters in stellar clusters II: efficient formation in binary systems
Daohai Li, Alexander J. Mustill, Melvyn B. Davies +1
Observations suggested that the occurrence rate of hot Jupiters (HJs) in open clusters is largely consistent with the field () but in the binary-rich cluster M67, the rate…
Secular dynamics of stellar spin driven by planets inside Kozai-Lidov resonance
Hanlun Lei, Yan-Xiang Gong
In many exoplanetary systems with `hot Jupiters', it is observed that the spin axes of host stars are highly misaligned to planetary orbital axes. In this study, a possible channel…
Implications of the Stellar Mass Density of High- Massive Galaxies from JWST on Warm Dark Matter
Hengjie Lin, Yan Gong, Bin Yue +1
A significant excess of the stellar mass density at high redshift has been discovered from the early data release of James Webb Space Telescope (), and it may require a…
The distance to the Serpens South Cluster from H2O masers
Gisela N. Ortiz-Leon, Sergio A. Dzib, Laurent Loinard +3
In this Letter, we report Very Long Baseline Array observations of 22 GHz water masers toward the protostar CARMA-6, located at the center of the Serpens South young cluster. From…
Cross-Correlation Forecast of CSST Spectroscopic Galaxy and MeerKAT Neutral Hydrogen Intensity Mapping Surveys
Yuer Jiang, Yan Gong, Meng Zhang +6
Cross-correlating the data of neutral hydrogen (HI) 21cm intensity mapping with galaxy surveys is an effective method to extract astrophysical and cosmological information. In this…
Foreground Removal of CO Intensity Mapping Using Deep Learning
Xingchen Zhou, Yan Gong, Furen Deng +3
Line intensity mapping (LIM) is a promising probe to study star formation, the large-scale structure of the Universe, and the epoch of reionization (EoR). Since carbon monoxide (CO…
Making hot Jupiters in stellar clusters: the importance of binary exchange
Daohai Li, Alexander J. Mustill, Melvyn B. Davies +1
It has been suggested that the occurrence rate of hot Jupiters (HJs) in open clusters might reach several per cent, significantly higher than that of the field ( a per cent).…
Fuzzy Dark Matter as a Solution to Reconcile the Stellar Mass Density of High-z Massive Galaxies and Reionization History
Yan Gong, Bin Yue, Ye Cao +1
The JWST early release data show unexpected high stellar mass densities of massive galaxies at , a high star formation efficiency is probably needed to explain this. Howeve…
Forecasting the Cross-Correlation of the CSST galaxy survey with the FAST HI Intensity Map
Furen Deng, Yan Gong, Yougang Wang +3
The cross-correlation of optical galaxies with the neutral hydrogen (HI) radiation intensity can enhance the signal-to-noise ratio (SNR) of the HI intensity measurement. In this pa…
Vibrationally excited HCN transitions in circumstellar envelopes of carbon-rich AGB stars
Manali Jeste, Yan Gong, Ka Tat Wong +3
Context. HCN is the most abundant molecule after H and CO in the circumstellar envelopes (CSEs) of carbon-rich asymptotic giant branch (AGB) stars. Its rotational lines withi…
Photometric redshift estimates using Bayesian neural networks in the CSST survey
Xingchen Zhou, Yan Gong, Xian-Min Meng +5
Galaxy photometric redshift (photo-) is crucial in cosmological studies, such as weak gravitational lensing and galaxy angular clustering measurements. In this work, we try to e…
Cosmological Constraint Precision of the Photometric and Spectroscopic Multi-probe Surveys of China Space Station Telescope (CSST)
Haitao Miao, Yan Gong, Xuelei Chen +3
As one of Stage IV space-based telescopes, China Space Station Telescope (CSST) can perform photometric and spectroscopic surveys simultaneously to efficiently explore the Universe…
Constraining Brans-Dicke cosmology with the CSST galaxy clustering spectroscopic survey
Anda Chen, Yan Gong, Fengquan Wu +2
The Brans-Dicke (BD) theory is the simplest Scalar-Tensor theory of gravity, which can be considered as a candidate of modified Einstein's theory of general relativity. In this wor…
Widespread subsonic turbulence in Ophiuchus North 1
Yan Gong, Shu Liu, Junzhi Wang +4
Supersonic motions are common in molecular clouds. (Sub)sonic turbulence is usually detected toward dense cores and filaments. However, it remains unknown whether (sub)sonic motion…
Forecast of Neutrino Cosmology from the CSST Photometric Galaxy Clustering and Cosmic Shear Surveys
Hengjie Lin, Yan Gong, Xuelei Chen +3
China Space Station Telescope (CSST) is a forthcoming powerful Stage IV space-based optical survey equipment. It is expected to explore a number of important cosmological problems…
Extracting Photometric Redshift from Galaxy Flux and Image Data using Neural Networks in the CSST Survey
Xingchen Zhou, Yan Gong, Xian-Min Meng +6
The accuracy of galaxy photometric redshift (photo-) can significantly affect the analysis of weak gravitational lensing measurements, especially for future high-precision surve…
Calibrating photometric redshift measurements with the Multi-channel Imager (MCI) of the China Space Station Telescope (CSST)
Ye Cao, Yan Gong, Zhen-Ya Zheng +1
The China Space Station Telescope (CSST) photometric survey aims to perform a high spatial resolution (~0.15'') photometric imaging for the targets that cover a large sky area (~17…
Anisotropies of Cosmic Optical and Near-IR Background from China Space Station Telescope (CSST)
Ye Cao, Yan Gong, Dezi Liu +3
Anisotropies of the cosmic optical background (COB) and cosmic near-IR background (CNIRB) are capable of addressing some of the key questions in cosmology and astrophysics. In this…
Self-calibrating interloper bias in spectroscopic galaxy clustering surveys
Yan Gong, Haitao Miao, Pengjie Zhang +1
Contamination of interloper galaxies due to misidentified emission lines can be a big issue in the spectroscopic galaxy clustering surveys, especially in future high-precision obse…
A global view on star formation: The GLOSTAR Galactic plane survey III. 6.7 GHz methanol maser survey in Cygnus X
Gisela N. Ortiz-León, Karl M. Menten, Andreas Brunthaler +16
The Cygnus X complex is covered by the Global View of Star Formation in the Milky Way (GLOSTAR) survey, an unbiased radio-wavelength Galactic plane survey, in 4--8 GHz continuum ra…
Discovery of 22 GHz Water Masers in the Serpens South Region
Gisela N. Ortiz-León, Adele Plunkett, Laurent Loinard +5
Using the Karl G. Jansky Very Large Array (VLA), we have conducted a survey for 22 GHz, 6_{1,6}-5_{2,3} H2O masers toward the Serpens South region. The masers were also observed wi…
Dense gas in local galaxies revealed by multiple tracers
Fei Li, Junzhi Wang, Feng Gao +6
We present 3 mm and 2 mm band simultaneously spectroscopic observations of HCN 1-0, HCO 1-0, HNC 1-0, and CS 3-2 with the IRAM 30 meter telescope, toward a sample of 70 sourc…
Spectroscopic and Photometric Redshift Estimation by Neural Networks For the China Space Station Optical Survey (CSS-OS)
Xingchen Zhou, Yan Gong, Xian-Min Meng +6
The estimation of spectroscopic and photometric redshifts (spec-z and photo-z) is crucial for future cosmological surveys. It can directly affect several powerful measurements of t…