Massive stars play a major role in the evolution of their host galaxies and serve as important
probes of the distant Universe. It has been established that the majority of massive stars …

Around 50 years ago, the famous bet between Stephen Hawking and Kip Thorne on
whether Cyg X-1 hosts a stellar-mass black hole became a well-known story in the history of …

ABSTRACT X-ray binaries (XRBs) are thought to regulate cosmic thermal and ionization
histories during the Epoch of Reionization and Cosmic Dawn (z∼ 5–30). Theoretical …

Rapid rotation and nonradial pulsations enable Be stars to build decretion disks, where the
characteristic line emission forms. A major but unconstrained fraction of Be stars owe their …

ABSTRACT LS V+ 44 17 is a persistent Be/X-ray binary (BeXRB) that displayed a bright,
double-peaked period of X-ray activity in late 2022/early 2023. We present a radio …

A large number of candidate binary stars with apparent acceleration on the sky has emerged
from analysis of astrometric data collected by the Hipparcos, Tycho-2, and Gaia space …

Be X-ray binaries (Be-XRBs) are crucial in understanding high-mass X-ray binaries,
featuring a rapidly rotating Be star and a neutron star companion in an eccentric orbit …

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 …

LB-1 is a binary system that has drawn great attention since its discovery in 2019. The
nature of the two components of LB-1 is not very clear, which however is suggested very …

Massive field stars are a seemingly isolated population that can be used to probe massive
star formation, binary interactions and massive star evolution. Field stars typically comprise …