摘要
分析类星体吸收线红移和发射线红移的特征。我们从Hewitt和Burbidge ( 1 993 )的星表中选择了吸收线红移和发射线红移都同时提供的类星体 ,得到了包含 4 0 1个对象的样本。这是至今对类星体红移研究的最大样本。我们从吸收线红移和发射线红移之间的关系图发现绝大多数 ( 93 .6% )对象的吸收线红移都小于相应的发射线红移。这个结论人们在 2 0世纪 70年代已经从很小的类星体样本 (样本大小 50左右 )中得到。本文进一步支持了这个结论。它表明类星体红移确实是距离的指示器。
We select a sample including 401 sources in which both absorption and emission redshifts are available from the table 1 in Hewitt and Burbidge .The sample is the largest one for the investigation of the quasar redshifts so far. It is found that most of the absorption redshifts (93.6%) are smaller than the corresponding emission redshifts, and the result is consistent with the conclusion drawn from a small sample in 1970s. The result indicates that the redshifts of quasars are indeed distance indicators. That is consistent with the cosmological interpretation of quasar redshifts.
出处
《云南天文台台刊》
CSCD
北大核心
2002年第2期16-21,共6页
Publications of the Yunnan Observatoty
基金
国家自然科学基金资助项目 ( 1 99730 1 5 )
云南省自然科学基金资助项目 ( 2 0 0 1A0 0 2 5Q)
