GLAST, GRBs, and Quantum Gravity

Simple item page
dc.creatorNorris, J. P.
dc.creatorBonnell, J. T.
dc.creatorMarani, G. F.
dc.creatorScargle, J. D.
dc.date1999-12-07
dc.date.accessioned2026-07-07T02:34:50Z
dc.date.available2026-07-07T02:34:50Z
dc.descriptionThe fast temporal structures and cosmological distances of gamma-ray bursts (GRBs) afford a natural laboratory for testing theories of frequency-dependent propagation of high-energy photons, as predicted for quantum gravity (QG). We calibrate the sensitivity of the proposed Gamma-ray Large Area Space Telescope (GLAST) by performing simulations which include: the response of GLAST to a GRB fluence distribution; a distribution of spectral power-law indices similar to the EGRET sample; and consideration of gamma-gamma attenuation, significant above ~ 10 GeV for redshifts z > 3 - 5. We find that GLAST should detect > 200 GRBs per year, with sensitivity to a few tens of GeV for a few bursts. GLAST could detect the energy- and distance-dependent dispersion (10 ms / GeV / Gpc) predicted by QG with 1 - 2 years of observations. Attribution to QG would require correlation of GRB redshifts with the temporal and energetic signatures.
dc.description4 pages
dc.identifierhttps://arxiv.org/abs/astro-ph/9912136
dc.identifierhttp://arxiv.org/abs/astro-ph/9912136
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/15399
dc.subjectAstrophysics
dc.titleGLAST, GRBs, and Quantum Gravity
dc.typetext

Files

Collections

arXiv