4 papers
Formation of a Possible Black-hole Ultracompact X-ray Binary with the Shortest Orbital Period
Xing-Peng Yang, Kun Xu, Zhi-Fu Gao +2
In the bulge of M31, the Chandra observations discovered a possible black hole (BH) ultracompact X-ray binary (UCXB) Seq.1 with an orbital period of 7.7 minutes and a maximum X-ray…
On the Formation of the Double Neutron Star Binary PSR J1846-0513
Long Jiang, Kun Xu, Shuai Zha +5
The double neutron star PSR J1846-0513 is discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in Commensal Radio Astronomy FAST Survey. The pulsar is rev…
Instability in supernova fallback disks and its effect on the formation of ultra long period pulsars
Hao-Ran Yang, Xiang-Dong Li, Shi-Jie Gao +1
Several pulsars with unusually long periods were discovered recently, comprising a potential population of ultra long period pulsars (ULPPs). The origin of their long periodicity i…
Black Hole Ultracompact X-Ray Binaries as Galactic Low-frequency Gravitational Wave Sources: the He Star Channel
Ke Qin, Kun Xu, Dong-Dong Liu +3
Black hole (BH) ultracompact X-ray binaries (UCXBs) are potential Galactic low-frequency gravitational wave (GW) sources. As an alternative channel, BH UCXBs can evolve from BH+He…