Astrophysics and Space Science

, Volume 100, Issue 1–2, pp 441–445 | Cite as

Redshift difference between emission and absorption lines of QSOs

Letters to the Editor


Distribution of the redshift difference (Δz) between emission and absorption lines of QSOs is ‘half-gaussian’. Also, the quantity Δz increases with increase in emission line redshift (zem). The correlation between the two quantities (Δz andzem) is statistically significant. The interpretation of the results indicate that the co-moving density of absorbing clouds decreases with redshift and that the absorbing clouds are associated with the QSOs rather than completely unrelated intervening material.


Emission Line Absorption Line Line Redshift Emission Line Redshift Redshift Difference 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© D. Reidel Publishing Company 1984

Authors and Affiliations

  • D. Basu
    • 1
  1. 1.Department of PhysicsUniversity of the West IndiesSt. AugustineTrinidad

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