33 citations · 71 across the 22 of their papers we have counts for
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A Sample of Long-Period Binaries with Dormant Compact-Object Candidates from LAMOST DR13 MRS and Gaia DR3
Junxing Zhou, Wei-Min Gu
Identifying dormant compact objects in non-interacting binaries is crucial for constraining the hidden population of stellar remnants. We present a systematic search for long-perio…
Searching for Contact Binaries with LAMOST and TESS
Ting Wu, Jin-Zhong Liu, Senyu Qi +4
Contact binaries (CBs) serve as fundamental laboratories for studying complex stellar interactions, including mass transfer, tidal effects, and angular momentum loss. In this work,…
Probing Compact Objects in Wide-Orbit Binaries with Joint LAMOST LRS and MRS
Hao-Bin Liu, Wei-Min Gu
Wide-orbit binaries serve as crucial laboratories for understanding stellar evolution and identifying quiescent compact objects. In this work, we search for compact objects in wide…
SED and Galactic kinematic diagnostics for dormant BH/NS binary candidates
Qian-Yu An, Wei-Min Gu
The third data release of the Gaia mission (Gaia DR3) has enabled large-scale searches for dormant black hole and neutron star binaries with stellar companions at AU-scale separati…
Classical Be Stars and Classical Be Star Binaries from LAMOST DR12
Qian-Yu An, Wei-Min Gu, Zhi-Xiang Zhang
Classical Be (CBe) stars are rapidly rotating B-type stars with Balmer emission lines that originated from the decretion disks surrounding them in their spectra. Accounting for $\s…
A Study of Cataclysmic Variables from the eFEDS Survey
Rui Wang, Wei-Min Gu, Zhi-Xiang Zhang +3
We present 17 cataclysmic variables (CVs) obtained from the crossmatch between the Sloan Digital Sky Survey (SDSS) and eROSITA Final Equatorial Depth Survey (eFEDS), including 8 kn…
A Be star-black hole binary with a wide orbit from LAMOST time-domain survey
Qian-Yu An, Yang Huang, Wei-Min Gu +21
Binary systems consisting of an early type star and a black hole (BH) are crucial for understanding various astrophysical phenomena, particularly the origins of detected gravitatio…
A Sample of Extreme Eclipsing Binaries with Accretion Disks from LAMOST and ZTF
Jiangxinxin Zhuang, Zhi-Xiang Zhang, Wei-Min Gu +1
Extreme eclipsing binaries may harbor peculiar physical properties. In this work, we aim to identify a sample of such systems by selecting binaries with pronounced eclipsing light…
A potential mass-gap black hole in a wide binary with a circular orbit
Wang Song, Zhao Xinlin, Feng Fabo +28
Mass distribution of black holes identified through X-ray emission suggests a paucity of black holes in the mass range of 3 to 5 solar masses. Modified theories have been devised t…
Two Dynamically Discovered Compact Object Candidate Binary Systems from LAMOST Low-resolution Survey
Senyu Qi, Wei-Min Gu, Zhi-Xiang Zhang +3
We report two binary systems, LAMOST J035540+381550 (hereafter J035540) and LAMOST J035916+400732 (hereafter J035916), identified through the Large Sky Area Multi-Object Fiber Spec…
A Sample of Compact Object Candidates in Single-lined Spectroscopic Binaries from LAMOST Medium Resolution Survey
Hao-Bin Liu, Wei-Min Gu, Zhi-Xiang Zhang +3
The stellar spectra from LAMOST Medium Resolution Survey can be used to search for compact objects in binaries. The LAMOST DR10 catalog includes > 980, 000 targets with multiple me…
The hidden companion in J1527: a 0.69 solar-mass white dwarf?
Zhi-Xiang Zhang, Hao-Bin Liu, Tuan Yi +2
Finding nearby neutron stars can probe the supernova and metal-enrichment histories near our Solar system. Recently, Lin et al. 2023 reported an exciting neutron star candidate, 2M…
Wide binaries with white dwarf or neutron star companions discovered from Gaia DR3 and LAMOST
Xinlin Zhao, Huijun Mu, Song Wang +12
Gaia DR3 mission has identified and provided about 440,000 binary systems with orbital solutions, offering a valuable resource for searching binaries including a compact component.…
White Dwarfs with Infrared Excess from LAMOST Data Release 5
Lin Wang, Xiaoxia Zhang, Junfeng Wang +5
Infrared excess is an important probe of sub-stellar companions and/or debris disks around white dwarfs (WDs). Such systems are still rare for in-depth understanding of their forma…