Fig. 5
From: A luminous blue kilonova and an off-axis jet from a compact binary merger at z = 0.1341
The host galaxy of GRB150101B. Color image of the host galaxy of GRB150101B created from the HST/WFC3 observations in filters F606W (blue, green) and F160W (red). The two intersecting lines mark the location of the GRB afterglow. The galaxy optical spectrum (inset) displays several absorption lines (Ca II H & K, G-band, Mg, and Na at z = 0.1341) and a red continuum
