The low energy magnetic spectrometer on Ulysses and ACE response to near relativistic protons Bruno Morgado, Dalmiro Jorge Filipe Maia, Louis Lanzerotti, Patrícia Gonçalves and J. Douglas Patterson A&A, 577 (2015) A61 Published online: 05 May 2015 DOI: 10.1051/0004-6361/201525960