Continued Brightening of the Afterglow of GW170817/GRB 170817A as due to a Delayed Energy Injection

Bing Li, Long-Biao Li, Yong-Feng Huang +3

The brightness of the multi-wavelength afterglow of GRB 170817A is increasing unexpectedly even $\sim$ 160 days after the associated gravitational burst. Here we suggest that the b…