Back to my homepage.
This page contains models of the extragalactic background light (EBL). This is the background light from direct stellar radiation and stellar radiation reprocessed by dust, and spans the far-infrared to the ultraviolet. The corresponding publication is
Finke, Razzaque, & Dermer, 2009, ApJ, submitted, arXiv:0905.1115 .
See also
Razzaque, Dermer, & Finke, 2009, ApJ, 697, 483 .
The energy densities for our "model C" are here. This model uses a fit to the star formation data in Hopkins & Beacom (2006) using a parameterization from Cole et al. (2001) and a Baldry & Glazebrook (2003) IMF. The first column is the photon energy in eV, and the second column is the comoving energy density in erg cm-3. Each file is for a different redshift, with the redshift (z) in the name of the file.
The γ-γ absorption optical depths for interactions between γ-rays and the EBL are here. The first column is the observed γ-ray photon energy in TeV and the second is the absorption optical depth (τγγ). The absorption probability will be exp(-τγγ). Again, the redshift of the γ-ray source will be in the name of the file.
Please e-mail any questions to
Justin Finke.
Back to my homepage.