553 citations · 802 across the 17 of their papers we have counts for
4 papers · 1 filter
Comparison of dynamical and kinematic reference frames via pulsar positions from timing, Gaia, and interferometric astrometry
Niu Liu, Zi Zhu, John Antoniadis +3
Pulsars are special objects whose positions can be determined independently from timing, radio interferometric, and Gaia astrometry at sub-milliarcsecond (mas) precision; thus, the…
CHES: a space-borne astrometric mission for the detection of habitable planets of the nearby solar-type stars
Jianghui Ji, Haitao Li, Junbo Zhang +19
The Closeby Habitable Exoplanet Survey (CHES) mission is proposed to discover habitable-zone Earth-like planets of the nearby solar-type stars ( away from our…
Evaluate the ICRF3 axes stability via extragalactic source position time series
Niu Liu, Sebastien Lambert, Felicitas Arias +2
We present an updated study on assessing the axes stability of the third generation of the International Celestial Reference Frame (ICRF3) in terms of linear drift and scatter base…
Planets Across Space and Time (PAST). III. Morphology of the Planetary Radius Valley as a Function of Stellar Age and Metallicity in the Galactic Context Revealed by the LAMOST-Gaia-Kepler Sample
Di-Chang Chen, Ji Wei Xie, Ji-Lin. Zhou +7
The radius valley, a dip in the radius distribution of exoplanets at ~1.9 Earth radii separates compact rocky Super-Earths and Sub-Neptunes with lower density. Various hypotheses h…