90 citations · 292 across the 21 of their papers we have counts for
21 papers
High-Priority Compact-Object Candidates in Young Clusters from the \textit{Gaia} DR3 Non-Single-Star Catalog
Dejian Liu, Kangteng Chang, Yao Huang +7
The search for massive compact objects such as black holes (BHs) or neutron stars (NSs) in star clusters is longstanding challenge in astrophysics, yet no definitive identification…
Mapping the Milky Way with Masers
Ye Xu, Kazi Rygl, Huib Jan van Langevelde +10
SKA-VLBI is poised to revolutionize our understanding of the Galactic structure through its unprecedented astrometric precision and sensitivity. As a next-generation facility, it w…
East Asian VLBI Network astrometry toward the star-forming region G040.96+02.48 in the Extreme Outer Galaxy
Xianjin Shen, Zehao Lin, Nobuyuki Sakai +18
Accurate astrometric measurements for star-forming regions located on the far side of the Milky Way remain scarce. In this work, we present the astrometric results for a 22\,GHz wa…
VLBI with SKA: Possible Arrays and Astrometric Science
Yingjie Li, Ye Xu, Jingjing Li +4
The next generation of very long baseline interferometry (VLBI) is stepping into the era of microarcsecond (as) astronomy, and pushing astronomy, especially astrometry, to new h…
Molecular Bubble and Outflow in S Mon Revealed by Multiband Datasets
Dejian Liu, Ye Xu, YingJie Li +8
We identify a molecular bubble, and study the star formation and its feedback in the S Mon region, using multiple molecular lines, young stellar objects (YSOs), and infrared data.…
Maser Investigation toward Off-Plane Stars (MIOPS): detection of SiO masers in the Galactic thick disk and halo
Wenjin Yang, Yuanwei Wu, Yan Gong +7
Studying stars that are located off the Galactic plane is important for understanding the formation history of the Milky Way. We searched for SiO masers toward off-plane O-rich asy…
Kinematics of the Local Spiral Structure Revealed by Young Stars in \emph{Gaia}~DR3
Dejian Liu, Ye Xu, Chaojie Hao +4
Using young open clusters and O--B2-type stars in~\emph{Gaia}~DR3, we investigate the kinematics of the local spiral structure. In general, the young sources in the outer spiral ar…
ALMA and VLBA views on the outflow associated with an O-type protostar in G26.50+0.28
Gang Wu, Christian Henkel, Ye Xu +6
Protostellar jets and outflows are essential ingredients of the star formation process. A better understanding of this phenomenon is important in its own right as well as for many…
The Effect of Light Deflection by Solar System Objects on High-Precision SKA Astrometry
Yingjie Li, Ye Xu, Shaibo Bian +4
We have computed the deflection angles caused by 195 objects in the solar system, including 177 satellites and eight asteroids. Twenty-one satellites and six asteroids can bend lig…
Neutral Stellar Winds Toward the High-Mass Star-Forming Region G176.51+00.20
Li Yingjie, Xu Ye, Xu Jin-Long +7
We observed the high-mass star-forming region G176.51+00.20 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) with the 19-beam tracking observational mode. Thi…
HI Narrow-Line Self-Absorptions Toward the High-Mass Star-Forming Region G176.51+00.20
Li Yingjie, Xu Ye, Xu Jin-Long +7
Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) 19-beam tracking observational mode, high sensitivity and high-velocity resolution HI spectral lines have bee…
Water Maser Survey towards off-plane O-rich AGBs around the orbital plane of the Sagittarius Stellar Stream
Yuanwei Wu, Bo Zhang, Jingjing Li +1
A 22 GHz water maser survey was conducted towards 178 O-rich AGB stars with the aim of identifying maser emission associated with the Sagittarius stellar stream. In this survey, ma…
Local Spiral Structure Traced by Red Clump Stars
Zehao Lin, Ye Xu, Ligang Hou +5
Using the cross-matched data of Gaia EDR3 and the 2MASS Point Source Catalog, a sample of RC stars with parallax accuracies better than 20% is identified and used to reveal the nea…
Light Deflection under the Gravitational Field of Jupiter -- Testing General Relativity
Yingjie Li, Ye Xu, JingJing Li +6
We measured the relative positions between two pairs of compact extragalactic sources (CESs), J1925-2219 \& J1923-2104 (C1--C2) and J1925-2219 \& J1928-2035 (C1--C3) on 2020 Octobe…
A catalogue of 74 new open clusters found in Gaia Data-Release 2
Zhi-Hong He, Ye Xu, Chao-Jie Hao +2
Based on astrometric data from Gaia DR2, we employ an unsupervised machine learning method to blindly search for open star clusters in the Milky Way within the Galactic latitude ra…
44 GHz methanol masers: Observations toward 95 GHz methanol masers
Wenjin Yang, Ye Xu, Yoon Kyung Choi +5
We report a simultaneous 44 and 95 GHz class I methanol maser survey toward 144 sources from the 95 GHz class I methanol maser catalog. The observations were made with the three te…
SiO Maser Survey towards off-plane O-rich AGBs around the orbital plane of the Sagittarius Stellar Stream
Yuanwei Wu, Noriyuki Matsunaga, Ross A. Burns +1
We conducted an SiO maser survey towards 221 O-rich AGB stars with the aim of identifying maser emission associated with the Sagittarius stellar stream. In this survey, maser emiss…
The local spiral structure of the Milky Way
Ye Xu, Mark Reid, Thomas Dame +7
The nature of the spiral structure of the Milky Way has long been debated. Only in the last decade have astronomers been able to accurately measure distances to a substantial numbe…
A Double-Jet System in the G31.41+0.31 Hot Molecular Core
Luca Moscadelli, Jing Jing Li, Riccardo Cesaroni +3
This work presents a detailed study of the gas kinematics towards the "Hot Molecular Core" (HMC) G31.41+0.31 via multi-epoch VLBI observations of the H2O 22 GHz and CH3OH 6.7 GHz m…
A Search for Infall Evidence in EGOs I: the Northern Sample
Xi Chen, Zhi-Qiang Shen, Jing-jing Li +2
We report the first systematic survey of molecular lines (including HCO+ (1-0) and 12CO, 13CO, C18O (1-0) lines at 3 mm band) towards a new sample of 88 massive young stellar objec…
A multiwavelength study of massive star-forming region IRAS 22506+5944
Yuan-Wei Wu, Ye Xu, Ji Yang +1
We present a multi-line study of the massive star-forming region IRAS 22506+5944. A new 6.7 GHz methanol maser was detected. 12CO, 13CO, C18O and HCO+ J = 1-0 transition observatio…