Multiwavelength campaign on Mrk 509 - VIII. Location of the X-ray absorber J. S. Kaastra, R. G. Detmers, M. Mehdipour, N. Arav, E. Behar, S. Bianchi, G. Branduardi-Raymont, M. Cappi, E. Costantini, J. Ebrero et al. (7 more) A&A, 539 (2012) A117 Published online: 02 March 2012 DOI: 10.1051/0004-6361/201118161