The second ICRANet Cšar Lattes Meeting supernovae, neutron stars and black holes : Rio de Janeiro - Niteri̤ - Joô Pessoa - Recife - Fortaleza, Brazil, 13-22 April 2015 editors: Ulisses Barres de Almeida (Centro Brasileiro de Pesquisas Fs̕icas, Rio de Janeiro, Brazil), Pascal Chardonnet (University of Savoy, Annecy-le-Vieux, France), Rodrigo Picanco Negreiros (Universidade Federal Fluminense, Niteroi, Brazil), Jorge Rueda, Remo Ruffini, Gregory Vereshchagin (ICRANet, Pescara, Italy and Sapienza University of Rome and ICRA, Rome, Italy), Cšar Zen Vasconcellos (Universidade Federal do Rio Grande do Sul, Rio Grande do Sul, Brazil)