ner_tags: B-Person O O O O B-Person I-Person B-Person I-Person B-Person I-Person B-Person I-Person O B-Person I-Person O O B-Person I-Person O O B-Instrument O O B-CelestialObject I-CelestialObject B-Person O O O O B-Organization B-Grant I-Grant I-Grant B-Organization O B-Grant O O B-Organization I-Organization I-Organization I-Organization O O O O B-Person I-Person O O O O O O O O O O O O O
tokens: BDM acknowledges helpful conversations with Damiano Caprioli, Koji Mukai, Jeno Sokoloski, Andrey Vlasov, and Bob Williams. We thank Fred Walter for providing optical data on nova Sco. BDM gratefully acknowledges support from NASA Fermi grant NNX14AQ68G, NSF grant AST-1410950, and the Alfred P. Sloan Foundation. We thank the reviewer, Guillaume Dubus, for helpful criticism and suggestions that led to an improvement of the manuscript.