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Effect of changes in magnitudes of QSO s in their redshift distribution
Author(s) -
Basu D.
Publication year - 1987
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2113080504
Subject(s) - qsos , redshift , physics , astrophysics , brightness , emission spectrum , red shift , distribution (mathematics) , spectral line , redshift survey , galaxy , astronomy , mathematical analysis , mathematics
Strong emission lines may change the brightness of QSOs and hence their observed magnitudes. Since different lines will affect the magnitudes by entering a particular filter at different redshifts, this effect may alter the number of QSOs at a particular redshift and hence the redshift distribution. The present analysis shows that the influence of the emission lines on the U and B magnitudes are significantly correlated to the redshift distribution. It is concluded that the changes in observed magnitudes of QSOs caused by the emission lines have significant effects on the present redshift distribution.