Implications of an updated ultraviolet background for the ionization mechanisms of intervening Ne VIII absorbers
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DOI: 10.1093/mnras/stw3265
Abstract: Ne VIII absorbers seen in QSO spectra are useful tracers of warm ionized gas, when collisional ionization is the dominant ionization process. While photoionization by the ultraviolet background (UVB) is a viable option, it tends… read more here.
Keywords: viii; mechanisms intervening; ultraviolet background; viii absorbers ... See more keywords
Ultraviolet Background Radiation from Not-So-Dark Matter in the Galactic Halo
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DOI: 10.3390/universe11050148
Abstract: Murthy et al. (2025) (hereafter Paper I) have recently reported the discovery of unexpectedly bright diffuse extreme-ultraviolet radiation at high latitudes in both the Northern and Southern Galactic Hemispheres. After correction for extinction by the… read more here.
Keywords: radiation; background radiation; dark matter; ultraviolet background ... See more keywords