Multiwavelength campaign on Mrk 509 VII. Relative abundances of the warm absorber

摘要: Context. The study of abundances in the nucleus active galaxies allows us to investigate evolution abundance by comparing local and higher redshift galaxies. However, methods used so far have substantial drawbacks or rather large uncertainties. Some measurements are at odds with initial mass function derived from older stellar population elliptical galaxies.Aims. We determine accurate reliable C, N, Ne, Fe relative O narrow absorption lines observed X-ray spectra Mrk 509.Methods. use stacked 600 ks XMM-Newton RGS 180 Chandra LETGS spectra. Thanks simultaneous observations INTEGRAL optical monitor on-board for HST-COS Swift observations, we an individual spectral energy distribution each dataset. Owing excellent quality spectrum, ionisation structure absorbing gas is well constrained, allowing a determination using ions over whole range parameters.Results. find that consistent proto-solar ratios: C/O = 1.19 +/- 0.08, N/O 0.98 Ne/O 1.11 0.10, Mg/O 0.68 0.16, Si/O 1.3 0.6, Ca/O 0.89 0.25, Fe/O 0.85 0.06, exception S, which slightly under-abundant, S/O 0.57 0.14. Our results, their implications, discussed compared results obtained other techniques derive