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The Macronova in GRB 050709 and the GRB-macronova connection

Li, Xiang; Jin, Zhi-Ping; Covino, Stefano +6 more

GRB 050709 was the first short Gamma-ray Burst (sGRB) with an identified optical counterpart. Here we report a reanalysis of the publicly available data of this event and the discovery of a Li-Paczynski macronova/kilonova that dominates the optical/infrared signal at t>2.5 days. Such a signal would arise from 0.05 r-process material launched by…

An enduring rapidly moving storm as a guide to Saturn's Equatorial jet's complex structure

Hueso, R.; Sánchez-Lavega, A.; Rojas, J. F. +13 more

Saturn has an intense and broad eastward equatorial jet with a complex three-dimensional structure mixed with time variability. The equatorial region experiences strong seasonal insolation variations enhanced by ring shadowing, and three of the six known giant planetary-scale storms have developed in it. These factors make Saturn's equator a natur…