Yildiz, Umut A.; Acharyya, Kinsuk; Goldsmith, Paul F.; van Dishoeck, Ewine F.; Melnick, Gary; Snell, Ronald; Liseau, René; Chen, Jo-Hsin; Pagani, Laurent; Bergin, Edwin; Caselli, Paola; Herbst, Eric; Kristensen, Lars E.; Visser, Ruud; Lis, Dariusz C.; Gerin, Maryvonne
(2013)
Context. According to traditional gas-phase chemical models, O<SUB>2</SUB> should be abundant in molecular clouds, but until recently, attempts to detect interstellar O<SUB>2</SUB> line emission with ground- and space-based ...