CIV absorption catalog in SDSS DR12

For each sight-line, identified by Column 1 and 2, we report the absorber’s redshift (Column 3), column density in log(cm −2 ) (Column 4), Doppler velocity dispersion in km s −1 (Column 5), rest equivalent width for 1548 Å W𝑟 ,1548 (Column 6), rest equivalent width for 1550 Å W𝑟 ,1550 (Column 7), the posterior probability of the C iv absorber P(M𝐷 ) (Column 8), and the posterior probability of the singlet absorber P(M𝑆 ) (Column 9). We show only absorbers with P(M𝐷 )≠NaN. This table demonstrates a portion of the full table for the first ten rows. Note that those measurements with large errors are uncertain (i.e. low absorption model posterior probability).

针对由第1列和第2列标识的每一条视向（sight-line），本数据集报告了该视向上吸收体的红移（第3列）、以log(cm⁻²)为单位的柱密度（第4列）、以km s⁻¹为单位的多普勒速度弥散（Doppler velocity dispersion）（第5列）、1548 Å波段的静止等效宽度（rest equivalent width）Wᵣ,1548（第6列）、1550 Å波段的静止等效宽度Wᵣ,1550（第7列）、碳四价（C IV）吸收体的后验概率（posterior probability）P(M_D)（第8列），以及单态吸收体的后验概率P(M_S)（第9列）。本数据集仅收录P(M_D)≠非数（NaN）的吸收体。此表格仅展示完整数据表的前10行内容。需注意，误差较大的测量结果存在不确定性，即对应吸收模型的后验概率较低。