An Algorithm for Detecting Quantum Gravity Photon Dispersion in Gamma-Ray Bursts: DisCan

@article{Scargle2006AnAF,
  title={An Algorithm for Detecting Quantum Gravity Photon Dispersion in Gamma-Ray Bursts: DisCan},
  author={Jeffrey D. Scargle and Jay Norris and J. T. Bonnell},
  journal={The Astrophysical Journal},
  year={2006},
  volume={673},
  pages={972 - 980}
}
DisCan is a new algorithm implementing photon dispersion cancellation in order to measure energy-dependent delays in variable sources. This method finds the amount of reversed dispersion that optimally cancels any actual dispersion present. It applies to any time- and energy-tagged photon data and avoids binning in both time and energy. The primary motivation here is the search for quantum gravity-based dispersion in future gamma-ray burst data from the Gamma-Ray Large Area Space Telescope… 
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References

SHOWING 1-10 OF 35 REFERENCES
Quantum-gravity analysis of gamma-ray bursts using wavelets
In some models of quantum gravity, space-time is thought to have a foamy structure with non-trivial optical prop- erties. We probe the possibility that photons propagating in vacuum may exhibit a
Limits to Quantum Gravity Effects on Energy Dependence of the Speed of Light from Observations of TeV Flares in Active Galaxies
We have used data from a TeV {gamma} -ray flare associated with the active galaxy Markarian 421 to place bounds on the possible energy dependence of the speed of light in the context of an effective
Implications of the Lag-Luminosity Relationship for Unified Gamma-Ray Burst Paradigms
Spectral lags (τlag) are deduced using a cross-correlation methodology for 1429 long (T90 > 2 s) BATSE gamma-ray bursts (GRBs) with peak flux Fp > 0.25 photons cm-2 s-1, near to the BATSE trigger
Relativistic outflows from remnants of compact object mergers and their viability for short gamma-ray bursts
We present the first general relativistic hydrodynamic models of the launch and evolution of relativistic jets and winds, driven by thermal energy deposition, possibly due to neutrino-antineutrino
GRB 051221A and tests of Lorentz symmetry
Various approaches to quantum gravity suggest the possibility of violation of Lorentz symmetry at very high energies. In these cases we expect a modification at low energies of the dispersion
Gamma-Ray Burst Peak Duration as a Function of Energy
Gamma-ray burst time histories often consist of many peaks. These peaks tend to be narrower at higher energy. If gamma-ray bursts are cosmological, the energy dependence of gamma-ray burst timescales
The Afterglow, Energetics, and Host Galaxy of the Short-Hard Gamma-Ray Burst 051221a
We present detailed optical, X-ray, and radio observations of the bright afterglow of the short gamma-ray burst 051221a obtained with Gemini, Swift XRT, and the Very Large Array, as well as optical
Short Gamma-Ray Bursts with Extended Emission
The recent association of several short gamma-ray bursts (GRBs) with early-type galaxies with low star formation rates demonstrates that short bursts arise from a different progenitor mechanism than
Long-Lag, Wide-Pulse Gamma-Ray Bursts
Currently, the best available probe of the early phase of gamma-ray burst (GRB) jet attributes is the prompt gamma-ray emission, in which several intrinsic and extrinsic variables determine GRB pulse
...
...