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Gas in cosmic voids*

Published online by Cambridge University Press:  19 July 2016

P M Gondhalekar  and
N Brosch
P M Gondhalekar
Affiliation:
Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, United Kingdom
N Brosch
Affiliation:
Wise Observatory, University of Tel Aviv, Tel Aviv 69978, Israel

Abstract

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Absorption lines at the redshifts of cosmic voids in Perseus-Pisces and Böotes have been detected in the ultraviolet spectra of background quasars. The detection of Si IV and C IV lines besides Ly α suggests chemical enrichment of gas in the voids. Additional observations of three sight-lines through the void in the Böotes suggests that the gas in the void is clumped in large clouds.

Type
VI. Quasars as Probes of the Intervening Medium
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986 , pp. 575 - 576
Copyright
Copyright © Reidel 1986 

References

Brosch, N & Greenberg, J M, 1983. Astrophys Sp Sci 90, 457.Google Scholar
Brosch, N & Gondhalekar, P M, 1984. Astron Astrophys 140, L43.Google Scholar
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Krumm, N & Brosch, N, 1984. Astron J 89, 1461.Google Scholar