标题： 斯隆数字天空调查 (SDSS) 中的 BL Lac 天体 显示英文标题

标题： BL Lac Objects in the Sloan Digital Sky Survey (SDSS)

摘要： 我们从最近发布的BL Lac天体目录（Veron-Cetty & Veron 2006）中收集了661个确认的和361个可能的BL Lac候选体样本。我们在斯隆数字巡天（SDSS）的数据发布版本DR5中搜索了这些源，并发现分别有169个和109个确认的和可能的BL Lac候选体具有光谱数据。我们发现，来自确认的BL Lac列表的32个候选体和来自可能的BL Lac列表的19个候选体具有非无特征光谱，因此可能不是BL Lac候选体。这里我们报告了对278个BL Lac天体样本分析的初步结果。 显示英文摘要

摘要： We collected a sample of 661 confirmed and 361 possible BL Lac candidates from the recent catalog of BL Lac objects (Veron-Cetty & Veron 2006). We searched these sources in the recent data release DR5 of the Sloan Digital Sky Survey (SDSS) and found spectra were available for 169 and 109 confirmed and possible BL Lac candidates respectively. We found 32 candidates from confirmed and 19 candidates from possible BL Lac lists have non featureless spectra and are thus possibly not BL Lac candidates. We report here the preliminary results from our analysis of a sample of 278 BL Lac objects.