your ID: 0108 
First Name: Junhan 
Last Name: You 
Mail_address: Department of physics,Shanghai Jiaotong University,Shanghai Huashan road1954 
Title: Different redshifts among broad hydrogen lines of a quasar arise from the Cerenkov line-like radiation. 
Authors: J.H.You, L.Chen, D.B.Liu 
Topic: 5 
Session: oral 
Abstract: The most striking property of a newly recognized line emission mechanism,
the Cerenkov line-like radiation,is that the peak of line is not at the precise intrinsic position 
but slightly red-shifted. we call it \"Cerenkov line redshift\", which is different from line to 
line,even for lines emitted from same atom species,e.g., from hydrogen.We collect a number 
of QSOs for which the redshifts of various hydrogen lines have been given out.Subtracting 
the cosmological component from the observed total redshift, we really find out additional 
small redshifts for hydrogen lines.The difference between H alpha and beta lines is in good 
consistency with the prediction of Cerenkov line-like radiation.