activity
20232026
most citedA potential mass-gap black hole in a wide binary with a circular orbit

33 citations · 71 across the 22 of their papers we have counts for

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9 papers · 1 filter

astro-ph.HE2026

Observational evidence of black hole event horizon from ultra-compact X-ray binaries

Qian-Qi Ma, Wei-Min Gu, Shan-Shan Weng +1

The event horizon is the most crucial feature that distinguishes black hole (BH) from all other objects in the universe. However, since no radiation can escape from the event horiz…

astro-ph.SR2026

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…

astro-ph.HE2026

A Possible Triple Formation Scenario of Binary Black Hole Merge With One In Pair-instability Supernova Mass Gap

Tian Huang, Xizhen Lu, Guoliang Lü +8

Observations of binary black hole (BBH) mergers detected by LIGO -- such as GW170729, GW190620, GW190706, GW230107, GW230820, and GW230928 -- feature high effective spins and prima…

astro-ph.HE2026

Hunting for Compact Object Binaries from eRASS1 Optical Counterparts through ZTF Time-domain Photometry and Multi-wavelength Surveys

Xin-Yu Fang, Hao-Bin Liu, Wei-Min Gu

Capitalizing on the eRASS1 optical counterpart catalog, we conduct a systematic census of compact object binary (COB) candidates, with a primary focus on X-ray binaries (XRBs), by…

astro-ph.HE2026

The Evolution of Cataclysmic Variables Under Various Magnetic Braking Prescriptions

Wen-Shi Tang, Xiang-Dong Li, Zhe Cui +2

Recent studies revealed discrepancies between observations and the predictions of the standard magnetic braking (MB). Although alternative models have been broadly discussed in neu…

astro-ph.SR2026

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,…

astro-ph.SR2026

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…

astro-ph.SR2026

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…

astro-ph.SR2026★ 1 cited

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…