Gravitational redshifts in main-sequence and giant stars L. Pasquini, C. Melo, C. Chavero, D. Dravins, H.-G. Ludwig, P. Bonifacio and R. De La Reza A&A, 526 (2011) A127 Published online: 11 January 2011 DOI: 10.1051/0004-6361/201015337