High-ion absorption in the proximate damped Ly-α system toward Q0841+129 A. J. Fox, C. Ledoux, P. Petitjean, R. Srianand and R. Guimarães A&A, 534 (2011) A82 Published online: 06 October 2011 DOI: 10.1051/0004-6361/201116995