73 citations · 278 across the 19 of their papers we have counts for
5 papers · 1 filter
At what mass are stars braked? The implication from the turnoff morphology of NGC 6819
Yong Yang, Chengyuan Li, Yang Huang +1
Extended main-sequence turnoffs apparent in most young and intermediate-age clusters (younger than ~2 Gyr) are known features caused by fast rotating early-type (earlier than F-typ…
White dwarfs identified in LAMOST Data Release 5
Jincheng Guo, Jingkun Zhao, Huawei Zhang +5
In this paper, we report white dwarfs identified in the 5th Data Release of the Large Area Multi-Object fibre Spectroscopic Telescope, including spectral types of DA, DB, DC, DZ, a…
Extended Tidal Tails of IC 4756 detected by {\it Gaia} EDR3
Xianhao Ye, Jinkun Zhao, Jiajun Zhang +2
We report the discovery of emerged tidal tails around open cluster IC 4756 ( 1 Gyr) based on 644 members identified from {\it Gaia} EDR3. Three-dimensional spatial positions,…
Tracing the Origin of Moving Groups. III. Detecting Moving Groups in The LAMOST DR7
Yong Yang, Jingkun Zhao, Jiajun Zhang +2
We revisit the moving groups (MGs) in the solar neighborhood with a sample of 91969 nearby stars constructed from LAMOST DR7. Using the wavelet technique and Monte Carlo simulation…
LAMOST J0140355+392651: An evolved cataclysmic variable donor transitioning to become an extremely low mass white dwarf
Kareem El-Badry, Eliot Quataert, Hans-Walter Rix +6
We present LAMOST J0140355+392651 (hereafter J0140), a close ( hours) binary containing a bloated, low-mass () proto-white dwarf (WD)…