Smoke in the Pipe Nebula: dust emission and grain growth in the starless core FeSt 1-457 Jan Forbrich, Charles J. Lada, Marco Lombardi, Carlos Román-Zúñiga and João Alves A&A, 580 (2015) A114 Published online: 13 August 2015 DOI: 10.1051/0004-6361/201425375