Query : 1999A&A...345L..32K

1999A&A...345L..32K - Astronomy and Astrophysics, volume 345, L32-34 (1999/5-2)

Pulsar radiation and quantum gravity.


Abstract (from CDS):

Quantum gravity may lead to an energy dependence in the speed of light. The high energy radiation from gamma-ray pulsars can be used to place limits on such effects. We find that emission from the Crab pulsar at energies above 2GeV trails that at 70-100MeV by no more than 0.35ms (95% confidence) and place a lower bound on the energy scale of quantum gravitational effects on the speed of light of 1.8x1015GeV. This bound might be improved by two orders of magnitude by observation of pulsations from the Crab at higher energies, 50-100GeV, in the near future.

Abstract Copyright:

Journal keyword(s): gravitation - stars: pulsars: general - stars: pulsars: individual: Crab - gamma rays: observations

Simbad objects: 2

goto View the references in ADS

Number of rows : 2
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
1 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5028 0
2 M 1 SNR 05 34 32 +22 00.8           ~ 5904 1

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