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| (Illustration by O. S. Salafia and G. Ghirlanda. Includes modified material from NASA/CXC/GSFC/B. Williams et al.) |
In 2018 our group led a study on the afterglow of GRB 170817A, the short gamma-ray burst associated to GW170817, the first ever neutron star merger observed in gravitational waves. We obtained global VLBI observations of the source which allowed for the measurement of the size of its projected image, which helped to settle the debate about the origin of the long-term X-ray, Optical and Radio emission.
The study is described in the article "Compact radio emission indicates a structured jet was produced by a binary neutron star merger", published on Science on the 21st of February 2019. Click here for the article full text or here for the article reprint.
Several press releases followed, including that from our institute, INAF.
