Probing the Era of Galaxy Formation via TeV Gamma Ray Absorption by the Near Infrared Extragalactic Background

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dc.creatorMacMinn, Donn
dc.creatorPrimack, Joel R.
dc.date1994-08-21
dc.date1994-11-16
dc.date.accessioned2026-07-07T08:58:15Z
dc.date.available2026-07-07T08:58:15Z
dc.descriptionWe present models of the extragalactic background light (EBL) based on several scenarios of galaxy formation and evolution. We have treated galaxy formation with the Press-Schecter approximation for both cold dark matter (CDM) and cold+hot dark matter (CHDM) models. Galaxy evolution has been treated by considering a variety of stellar types, different initial mass functions and star formation histories, and with an accounting of dust absorption and emission. We find that the dominant factor influencing the EBL is the epoch of galaxy formation. A recently proposed method for observing the EBL utilizing the absorption of $\sim 0.1$ to 10 TeV gamma-rays from active galactic nuclei (AGN) is shown to be capable of discriminating between different galaxy formation epochs. Observations of TeV gamma-ray bursts (GRB) would constrain or eliminate models in which the GRB sources lie at cosmological distances.
dc.description9 pages incl 3 figs, self-unpacking .ps file uuencoded by uufiles ***Substantial revision. Models expanded to include dust absorption and emission, further changes to text, new figures. 11/94.***
dc.identifierhttps://arxiv.org/abs/astro-ph/9408076
dc.identifierhttp://arxiv.org/abs/astro-ph/9408076
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/147249
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleProbing the Era of Galaxy Formation via TeV Gamma Ray Absorption by the Near Infrared Extragalactic Background
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