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The origin and physical mechanism of the ensemble Baldwin effect

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 نشر من قبل Xiaobo Dong
 تاريخ النشر 2009
  مجال البحث فيزياء
والبحث باللغة English
 تأليف Xiaobo Dong




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We have conducted a systematic investigation of the origin and underlying physics of the line--line and line--continuum correlations of AGNs, particularly the Baldwin effect. Based on the homogeneous sample of Seyfert 1s and QSOs in the SDSS DR4, we find the origin of all the emission-line regularities is Eddington ratio (L/Ledd). The essential physics is that L/Ledd regulates the distributions of the properties (particularly column density) of the clouds bound in the line-emitting region.



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