Abstract
The metallicity in portions of high-redshift galaxies has been successfully measured thanks to the gas observed in absorption in the spectra of quasars, in the Damped Lyman-α systems (DLAs). Surprisingly, the global mean metallicity derived from DLAs is about 1/10th solar at 0 ≲ z ≲ 4 leading to the so-called "missing-metals problem". In this paper, we present high-resolution observations of a sub-DLA system at Zabs = 0.716 with super-solar metallicity toward SDSS J1323-0021. This is the highest metallicity intervening high-H I quasar absorber currently known, and is only the second super-solar such absorber known to date. We provide a detailed study of this unique object from VLT/UVES spectroscopy. We derive [Zn/H] = +0.61, [Fe/H] = -0.51, [Cr/H] =
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CITATION STYLE
Péroux, C., Kulkarni, V. P., Meiring, J., Ferlet, R., Khare, P., Lauroesch, J. T., … York, D. G. (2006). The most metal-rich intervening quasar absorber known. Astronomy and Astrophysics, 450(1), 53–57. https://doi.org/10.1051/0004-6361:20054642
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