The first frost in the Pipe Nebula Miwa Goto, Jeffrey D. Bailey, Seyit Hocuk, Paola Caselli, Gisela B. Esplugues, Stephanie Cazaux and Marco Spaans A&A, 610 (2018) A9 Published online: 12 February 2018 DOI: 10.1051/0004-6361/201629830