Asymmetric heating of the HR 4796A dust ring due to pericenter glow M. M. Moerchen, L. J. Churcher, C. M. Telesco, M. Wyatt, R. S. Fisher and C. Packham A&A, 526 (2011) A34 Published online: 17 December 2010 DOI: 10.1051/0004-6361/201014881