【摘要】 BL Lac天体表现出很多的特殊观测性质,根据巡天方式的不同它们可以分为射电和X选BL天体.不少的作者讨论过它们的关系.从两个完备的样本中选择有热光度和核主导系数的样本,讨论它们的不同和统一的问题.结果表明两种选择的BL天体在热光度上表现的不同是由于喷流造成.也就是说两种天体本质上是一样的.更多还原

【Abstract】 BL Lacertae objects show some particularly observational properties.They were classified as radio-selected and X-ray selected BL Lacertae objects from surveys.Many authors have investigated their relationship.In this paper,we chose two samples from two complete samples of BL Lacertae objects,compiled the core-dominance parameters and bolometric luminosity,investigated the difference in those parameters and the unified scheme.The results indicated that the apparent difference in the luminosity is caused by the relativistic beaming effect.In this sense,we can say that radio-selected and X-ray selected BL Lacertae objects are originally the same.更多还原