3 papers
astro-ph.CO2026
Purely gravitational dark matter production in warm inflation
Qing-Yang Wang, Tianyu Jia, Pei-Ran Chen +1
We consider an appealing scenario for the production of purely gravitational dark matter in the background of warm inflation, a mechanism that maintains stable thermal bath during…
gr-qc2025
Effects of black hole environments on extreme mass-ratio hyperbolic encounters
Ya-Ze Cheng, Yan Cao, Yong Tang
Extreme mass-ratio hyperbolic encounters (EMRHEs) around the supermassive black holes will be observable at the future gravitational-wave (GW) detectors in space, such as LISA and…
gr-qc2025
Probing vector gravitational atoms with eccentric intermediate mass-ratio inspirals
Yan Cao, Ya-Ze Cheng, Gen-Liang Li +1
Ultralight bosons, proposed as candidates for dark matter (DM), are predicted by various new physics models. In the presence of bosons with suitable masses, superradiant (SR) insta…