GRS 1758-258: the first winged microquasar

The family links between radio galaxies and microquasars have been strongly strengthened thanks to a new common phenomenon: the presence of extended winged features. The first detection of such structures in a Galactic microquasar, recently reported in Nature Communications (http://rdcu.be/zgX8), widens the already known analogy between both kinds of outflow sources (Mart\'i et al. 2017). This observational result also has potential implications affecting the black hole merger scenarios that contribute to the gravitational wave background.
Comment: 3 pages, 1 figure. Based on an invited talk presented to the workshop on "Interstellar Medium and Radio Astronomy in Catalonia: the Robert Estalella Legacy", held at the University of Barcelona on 21-22 December 2017