CAJ | 학술논문

通过探究类星体对的Lyman-α的吸收线和发射线的等值宽度,研究了它们之间可能存在的相互关系.研究了来自SDSS巡天的12对中等分辨率的类星体对.发现Lyman-α的发射线和吸收线的等值宽度没有任何的相关性.它支持了前人的建议,即背景类星体的Lyman-α吸收线来自前景类星体附近的光学厚吸收体,而Lyman-α的发射线来自前景类星体本身.
통과탐구류성체대적Lyman-α적흡수선화발사선적등치관도,연구료타문지간가능존재적상호관계.연구료래자SDSS순천적12대중등분변솔적류성체대.발현Lyman-α적발사선화흡수선적등치관도몰유임하적상관성.타지지료전인적건의,즉배경류성체적Lyman-α흡수선래자전경류성체부근적광학후흡수체,이Lyman-α적발사선래자전경류성체본신.
We investigated the relation between the Lyman-α emission and absorption lines of quasar pairs by exploring possible correlation between the equivalent widths of the two kinds of lines. We used 12 moderately resolved quasar pairs from the Sloan Digitized Sky Survey (SDSS) for the study, where the equivalent widths of the Lyman-α emission lines of the foreground quasars are available in literature. The equivalent widths of the corresponding Ly-α absorption lines of the background quasars were measured from their spectra data downloaded from the SDSS web-site. We found no correlation between rest-frame equivalent widths of the Ly-α emission and absorption lines, favoring the previous suggestion that the Ly-α absorption lines in background quasars are due to optically thick absorbers near the foreground quasars, and the Ly-α emission lines originate from the foreground quasars themselves.