7 papers
Galaxy-LRD Strong Lenses: A Missing Population?
Zizhao He, Nan Li, Simon Dye +2
The physical nature of Little Red Dots (LRDs) remains uncertain, although these abundant, compact, and red sources may offer important insights into early black-hole growth and gal…
Ultra-high-energy -ray imprints from PeV particles accelerated by supernova remnants
Zhen Cao, F. Aharonian, Y. X. Bai +320
The quest for the origin of cosmic ray (CRs) is a fundamental issue in astrophysics. Shocks of supernova remnants (SNRs) have been considered as the dominant contributors to Galact…
Self-resonance preheating in deformed attractor models: oscillon formation and evolution
Bao-Min Gu, Yu-Peng Zhang, Fu-Wen Shu +1
It is well known that, in potentials that are quadratic near the minimum but shallower away, such as small () attractors, the inflaton condensate fragments into loc…
Constraint on massive vector field with extreme-mass-ratio inspirals around a slowly rotating black hole
Tieguang Zi, Peng-Cheng Li, Bao-Min Gu +1
We study the influence of a massive vector (Proca) field on the energy fluxes from extreme-mass-ratio inspirals (EMRIs) around a slowly rotating Kerr black hole. The secondary comp…
Primordial black holes with anisotropic hair
Chong-Bin Chen, Bai-Xin An, Fu-Wen Shu
A mechanism for generating anisotropic enhancements of the curvature perturbation through a vector field is proposed. We find that when the mixing between the inflaton perturbation…
Eccentric extreme-mass-ratio inspirals: a new window into ultra-light vector fields
Tieguang Zi, Fu-Wen Shu
Space-based gravitational-wave detectors, such as the Laser Interferometer Space Antenna (LISA), provide a platform to probe new fundamental fields through extreme-mass-ratio inspi…