Browsing by Subject "quasars: absorption lines"
Now showing items 1-5 of 5
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(Oxford Academic, 2018)Cosmological simulations predict that a significant fraction of the low-z baryon budget resides in large-scale filaments in the form of a diffuse plasma at temperatures T ∼ 105 − 107 K. However, direct observation of this ...
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(2016)We present spectroscopic observations of six high redshift (z(em) > 2) quasars, which have been selected for their Lyman alpha (Ly alpha) emission region being only partially covered by a strong proximate (z(abs) similar ...
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(2016)We statistically study the physical properties of a sample of narrow absorption line (NAL) systems looking for empirical evidences to distinguish between intrinsic and intervening NALs without taking into account any a ...
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(The Royal Astronomical Society, 2015)We present the largest homogeneous survey of z > 4.4 damped Lyα systems (DLAs) using the spectra of 163 QSOs that comprise the Giant Gemini GMOS (GGG) survey. With this survey we make the most precise high-redshift ...
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(EDP Sciences, 2015)We present a detailed analysis of three extremely strong, intervening damped Lyman-α systems (ESDLAs, with log N(H i) ≥ 21.7) observed towards quasars with the Ultraviolet and Visual Echelle Spectrograph on the Very Large ...