84 citations · 488 across the 43 of their papers we have counts for
Showing 2018Show all
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astro-ph.GA2018★ 15 cited
Identifying quasars with astrometric and mid-infrared methods from APOP and ALLWISE
Sufen Guo, Zhaoxiang Qi, Shilong Liao +5
Context. Quasars are spatially stationary, and they are essential objects in astrometry when defining reference frames. However, the census of quasars is far from complete. Mid-inf…
astro-ph.GA2018★ 84 cited
A comparison of the local spiral structure from Gaia DR2 and VLBI maser parallaxes
Y. Xu, S. B. Bian, M. J. Reid +8
Context. The Gaia mission has released the second data set (Gaia DR2), which contains parallaxes and proper motions for a large number of massive, young stars. Aims. We investigate…
astro-ph.GA2018★ 8 cited
Improved Selection Criteria for HII Regions, based on IRAS Sources
Qing-Zeng Yan, Ye Xu, A. J. Walsh +6
We present new criteria for selecting HII regions from the Infrared Astronomical Satellite (IRAS) Point Source catalogue (PSC), based on an HII region catalogue derived manually fr…