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Chin. J. Astron. Astrophys. Vol. 6 (2006), Suppl.1, 000000 (http://www.chjaa.org)

Summary: Chin. J. Astron. Astrophys. Vol. 6 (2006), Suppl.1, 000000
Chinese Journal of
Astronomy and
Bright Light from Dark Matter
(Baryonic and Non-baryonic)
Richard Conn Henry
Henry A. Rowland Department of Physics and Astronomy
The Johns Hopkins University
Baltimore, MD 21218 USA
Abstract Preliminary investigation of GALEX images of the diffuse ultraviolet background
radiation suggests that part of the diffuse background represents red-shifted Lyman recom-
bination radiation from the intergalactic medium, which in turn would require, to maintain
the observed high degree of ionization of the intergalactic medium, that the non-baryonic
dark matter decay with the emission of an ionizing photon. Techniques for verifying this and
for treating the data are described in some detail.
Key words: techniques: ultraviolet cosmology: diffuse background
With colleagues Jayant Murthy and Luciana Bianchi, and with the help of two students (P. Shalima and


Source: Henry, Richard C.- Department of Physics and Astronomy, Johns Hopkins University


Collections: Physics