4 papers
Methods for Detecting Gravitational Waves from mini-Extreme-Mass-Ratio Inspirals II: A Spectral-Leakage-Aware Framework
Zi-Xuan Wang, Xing-Yu Chen, Ju Chen +3
Mini-Extreme-Mass-Ratio Inspirals (mini-EMRIs), comprising a sub-solar exotic compact object (such as a primordial black hole or boson star) orbiting a much heavier stellar-origin…
Exotic Dark Matter and the DESI Anomaly
Matteo Braglia, Xingang Chen, Abraham Loeb
Exotic dark matter (EDM) refers to a dark matter species whose equation of state deviates from zero at late times. This behavior enables it to model a variety of non-standard late-…
Evolving Dark Energy or Evolving Dark Matter?
Xingang Chen, Abraham Loeb
We show that the latest empirical constraints on cosmology, from a combination of DESI, CMB and supernova data, can be accounted for if a small component of dark matter has an evol…
GW170817: Measurements of Neutron Star Radii and Equation of State
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1149
On 17 August 2017, the LIGO and Virgo observatories made the first direct detection of gravitational waves from the coalescence of a neutron star binary system. The detection of th…