Speaker
Dr
Wenxing Zhang
(Hebei University)
Description
We derive new constraints on millicharged dark matter from the multimessenger observation of GW170817. In the neutron star merger event GW170817, the first detection of a gamma-ray burst (GRB) delayed by approximately 1.7 seconds relative to the gravitational wave emission was observed. Utilizing this delay, we constrain the millicharge parameter of dark matter within the large-scale structure of the universe. For dark matter masses below 10−15 eV, the millicharge parameter is constrained to be less than 10−14, representing the most stringent limits achieved to date.
Primary author
Dr
Wenxing Zhang
(Hebei University)
