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arXiv:0906.2961v1[astro-ph.GA]16Jun2009 Mem. S.A.It. Vol. 75, 282

Summary: arXiv:0906.2961v1[astro-ph.GA]16Jun2009
Mem. S.A.It. Vol. 75, 282
c SAIt 2008 Memorie della

Richard Conn Henry
Henry A. Rowland Department of Physics & Astronomy
The Johns Hopkins University
3400 North Charles Street
Baltimore, Maryland, 21218-2686 USA
e-mail: henry@jhu.edu
Abstract. A bright UV GALEX image in the direction of a dense high galactic latitude
interstellar dust cloud is examined to test (and to reject) the idea that a bright extragalactic
UV background radiation field exists. A GALEX "Deep Imaging Survey" image of a second
high latitude region (a region almost totally free of dust) shows a similar bright background,
which, clearly, cannot be due to starlight scattered from interstellar dust. I speculate that the
background is due to dark matter particles interacting with interstellar gas/dust nucleons.
Key words. techniques: ultraviolet cosmology: diffuse background
1. Introduction
0.0 0.1 0.2 0.3 0.4 0.5


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


Collections: Physics