1995/08/20 by Dan Maoz · 3 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Electrical and Electromagnetic Research #Galaxies: Formation, Evolution, Phenomena #astro-ph
paper · pdf · doi:10.1086/309833
Submitted to ApJ Letters. 14 pages incl. 2 figures, uuencoded, compressed postscript. Also available by anonymous ftp to ftp://wise3.tau.ac.il/pub/dani/dust.ps.Z
arxiv created 1995/08/20 · openalex publication_date 1995/12/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
I measure the V - I color distribution of two samples of radio-selected quasars. Quasars from one sample are projected on the sky within 1° of a rich foreground Abell cluster of galaxies, while quasars from the other sample are more than 3° from any such cluster. There is no significant difference between the color distribution of the two samples. The 90% upper limit on the relative reddening between the two samples is E ( B - V ) = 0.05 mag. This result limits the allowed quantity of smoothly distributed dust in rich clusters and contradicts previous indications of the existence of such a component.