Rodríguez Hidalgo et al. (2013, ApJ, 775, 14) have reported the transition of a C iv mini-broad absorption line (mini-BAL) into a BAL in quasar SDSS J115122.14+020426.3 (hereafter J1151+0204). Based on the two-epoch spectra obtained from the Sloan Digital Sky Survey, we further investigate the three BAL systems (systems A, B and C) in J1151+0204. First, we confirm that the absorption-line variability in J1151+0204 is most likely caused by the change in ionization in response to the continuum variation, according to at least the following observational factors: coordinated strengthening is detected between multiple absorption troughs, and the continuum shows obvious weakening. According to photoionization simulations, asynchronized variability between the continuum and absorption lines indicates that the mini-BAL (system A) of J1151+0204 actually represents the state of a higher ionization level and lower C iv column density of the outflow, while its BAL identifies the state of a lower ionization level and higher C iv column density. Second, we find a rare case of a quintuple, which is due to four successive line-locked C iv doublets, within system C. This indicates that these outflow clouds have achieved a high degree of clumpiness, and that the radiative forces play a significant role in the acceleration process of these clumpy outflow clouds.

中文翻译：

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类星体SDSS J115122.14 + 020426.3中的连续行锁定C iv双峰

RodríguezHidalgo等。（2013，ApJ，775，14）报告了C  iv的过渡准SDSS J115122.14 + 020426.3（以下称为J1151 + 0204）中的BAL中的微型宽吸收线（mini-BAL）。基于从斯隆数字天空调查获得的两周期谱，我们进一步研究了J1151 + 0204中的三个BAL系统（系统A，B和C）。首先，我们至少根据以下观察因素，确认J1151 + 0204的吸收谱线变化最可能是由电离响应连续谱变化引起的变化引起的：在多个吸收槽之间检测到协同强化，并且连续体显示明显减弱。根据光电离模拟，连续谱线和吸收谱线之间的异步变化表明J1151 + 0204的mini-BAL（系统A）实际上代表了较高电离水平和较低C的状态 iv流出的色谱柱密度，而其BAL表示较低电离水平和较高C  iv色谱柱密度的状态。其次，我们发现了一个罕见的五元组情况，这是由于系统C中有四个连续的行锁定C iv双峰所致 。这表明这些流出的云已经达到高度的团块状态，并且辐射力起着很大的作用。在这些块状流出云的加速过程中扮演重要角色。