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• W3099480416 abstract "An independent analysis of the molecular hydrogen absorption system at z = 2.059 in the spectrum of the quasar J2123-0050 is presented. The H_2 system consists of two components (A and B) with column densities log N^A(H_2) = 17.94+/-0.01 and log N^B(H_2) = 15.16+/-0.02. The spectrum exhibits the lines of HD molecules (log N^A(HD) = 13.87+/-0.06) and the neutral species C I and Cl I associated with the H_2 absorption system. For the molecular hydrogen lines near the quasar's Ly_beta and O VI emission lines, we detect a nonzero residual flux, ~3% of the total flux, caused by the effect of partial coverage of the quasar's broad-line region by an H_2 cloud. The uniqueness of the system being investigated is manifested in a high abundance of the neutral species H_2 and C I at the lowest H I column density, log N(H I) = 19.18+/-0.15, among the high redshift systems. The N(HD)/2N(H_2) ratio for component A has turned out to be also unusually high, (4.26+/-0.60)x10^{-5}. We have investigated the physical conditions in components A and B. Component A represents the optically thick case; the gas has a low number density (n~30 cm^{-3}) and a temperature T~140 K. In component B, the medium is optically thin with n<100 cm^{-3} and T<100 K. The ultraviolet (UV) background intensity in the clouds exceeds the mean intensity in our Galaxy by almost an order of magnitude. A high gas ionization fraction, n(H+)/n(H)~10^{-2}, which can be the result of partial shielding of the system from hard UV radiation, is needed to describe the high HD and C I column densities. Using our simulations with the PDR Meudon code, we can reconstruct the observed column densities of the species within the model with a constant density n(H)=40 cm^{-3}. A high H_2 formation rate (higher than the mean Galactic value by a factor of 10-40) and high gas ionization fraction and UV background intensity are needed in this case." @default.
• W3099480416 created "2020-11-23" @default.
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• W3099480416 date "2016-03-01" @default.
• W3099480416 modified "2023-10-05" @default.
• W3099480416 title "Estimation of physical conditions in the cold phase of the interstellar medium in the sub-DLA system at z = 2.06 in the spectrum of the quasar J 2123–0050" @default.
• W3099480416 cites W1520403645 @default.
• W3099480416 cites W1573299053 @default.
• W3099480416 cites W1598813349 @default.
• W3099480416 cites W1653633141 @default.
• W3099480416 cites W1897009212 @default.
• W3099480416 cites W1907514996 @default.
• W3099480416 cites W1929187182 @default.
• W3099480416 cites W1965372241 @default.
• W3099480416 cites W1971761780 @default.
• W3099480416 cites W1973913139 @default.
• W3099480416 cites W1978342063 @default.
• W3099480416 cites W1980377735 @default.
• W3099480416 cites W1980888322 @default.
• W3099480416 cites W1981121691 @default.
• W3099480416 cites W1986251797 @default.
• W3099480416 cites W1996962600 @default.
• W3099480416 cites W1998982140 @default.
• W3099480416 cites W2004052728 @default.
• W3099480416 cites W2010287900 @default.
• W3099480416 cites W2017537421 @default.
• W3099480416 cites W2019579421 @default.
• W3099480416 cites W2028940079 @default.
• W3099480416 cites W2040615387 @default.
• W3099480416 cites W2042749826 @default.
• W3099480416 cites W2045546516 @default.
• W3099480416 cites W2047855880 @default.
• W3099480416 cites W2049423024 @default.
• W3099480416 cites W2049719638 @default.
• W3099480416 cites W2057283629 @default.
• W3099480416 cites W2061189778 @default.
• W3099480416 cites W2064913047 @default.
• W3099480416 cites W2065520296 @default.
• W3099480416 cites W2066382349 @default.
• W3099480416 cites W2075770183 @default.
• W3099480416 cites W2076132585 @default.
• W3099480416 cites W2080029870 @default.
• W3099480416 cites W2085730108 @default.
• W3099480416 cites W2093835827 @default.
• W3099480416 cites W2097292025 @default.
• W3099480416 cites W2102639500 @default.
• W3099480416 cites W2118190921 @default.
• W3099480416 cites W2128764080 @default.
• W3099480416 cites W2141208584 @default.
• W3099480416 cites W2142729710 @default.
• W3099480416 cites W2149962897 @default.
• W3099480416 cites W2157917411 @default.
• W3099480416 cites W2164234922 @default.
• W3099480416 cites W2166009026 @default.
• W3099480416 cites W2167813214 @default.
• W3099480416 cites W2249042401 @default.
• W3099480416 cites W2599925174 @default.
• W3099480416 cites W2899497983 @default.
• W3099480416 cites W3098035344 @default.
• W3099480416 cites W3098330947 @default.
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• W3099480416 cites W3099857746 @default.
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• W3099480416 cites W3100685835 @default.
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• W3099480416 cites W3104263603 @default.
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• W3099480416 doi "https://doi.org/10.1134/s1063773716030038" @default.
• W3099480416 hasPublicationYear "2016" @default.
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