Inflation of 430-parsec bipolar radio bubbles in the Galactic Centre by an energetic event by Heywood, I, Camilo, F, Cotton, WD, Yusef-Zadeh, F, Abbott, TD, Adam, RM, Aldera, MA, Bauermeister, EF, Booth, RS, Botha, AG, Botha, DH, Brederode, LRS, Brits, ZB, Buchner, SJ, Burger, JP, Chalmers. JM, Cheetham, T, de Villiers, D, Dikgale-Mahlakoana, MA, du Toit, LJ, Esterhuyse, SWP, Fanaroff, BL, Foley, AR, Fourie, DJ, Gamatham, RRG, Goedhart, S, Gounden, S, Hlakola, MJ, Hoek, CJ, Hokwana, A, Horn, DM, Horrell, JMG, Hugo, B, Isaacson, AR, Jonas, JL, Jordaan, JDBL, Joubert, AF, Józsa, GIG, Julie, RPM, Kap, FB, Kenyon, JS, Kotzé, PPA, Kriel, H, Kusel, TW, Lehmensiek, R, Liebenberg, D, Loots, A, Lord, RT, Lunsky, BM, Macfarlane, PS