skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Limits to Quantum Gravity Effects on Energy Dependence of the Speed of Light from Observations of TeV Flares in Active Galaxies

Abstract

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 quantum gravitational energy scale. Recent theoretical work suggests that such an energy scale could be less than the Planck mass and perhaps as low as 10{sup 16} thinspthinspGeV. The limits derived here indicate this energy scale to be in excess of 6{times}10{sup 16} thinspthinspGeV for at least one approach to quantum gravity in the context of D-brane string theory. To the best of our knowledge, this constitutes the first convincing limit on such phenomena in this energy regime. {copyright} {ital 1999} {ital The American Physical Society}

Authors:
 [1]; ; ; ; ;  [2];  [3]; ; ; ;  [4];  [5]; ; ; ;  [6]; ; ;  [7];  [8] more »;  [9];  [10]; ;  [11] « less
  1. Oxford University, Oxford (United Kingdom)
  2. University College, Dublin (Ireland)
  3. Washington University, St. Louis, Missouri 63130 (United States)
  4. Iowa State University, Ames, Iowa 50011 (United States)
  5. Maynooth University, Maynooth (Ireland)
  6. Purdue University, West Lafayette, Indiana 47907 (United States)
  7. University of Leeds, Leeds (United Kingdom)
  8. California Institute of Technology, California 91125 (United States)
  9. University of Utah, Salt Lake City, Utah 84112 (United States)
  10. Galway-Mayo Institute of Technology, Galway (Ireland)
  11. Whipple Observatory, Amado, Arizona 85645 (United States)
Publication Date:
OSTI Identifier:
686479
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 83; Journal Issue: 11; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; GALAXIES; QUANTUM GRAVITY; ELECTROMAGNETIC RADIATION; ENERGY DEPENDENCE; GAMMA SOURCES; MARKARIAN GALAXIES; STRING MODELS

Citation Formats

Biller, S.D., Breslin, A.C., Carson, M., Fegan, D.J., Masterson, C., McKernan, B., Buckley, J., Catanese, M., Carter-Lewis, D.A., Krennrich, F., Samuelson, F., Cawley, M.F., Finley, J.P., Gaidos, J.A., Lessard, R., Sembroski, G., Hillas, A.M., Rose, H.J., Skelton, P., Lamb, R.C., McEnery, J.E., Moriarty, P., Quinn, J., and Weekes, T.C. Limits to Quantum Gravity Effects on Energy Dependence of the Speed of Light from Observations of TeV Flares in Active Galaxies. United States: N. p., 1999. Web. doi:10.1103/PhysRevLett.83.2108.
Biller, S.D., Breslin, A.C., Carson, M., Fegan, D.J., Masterson, C., McKernan, B., Buckley, J., Catanese, M., Carter-Lewis, D.A., Krennrich, F., Samuelson, F., Cawley, M.F., Finley, J.P., Gaidos, J.A., Lessard, R., Sembroski, G., Hillas, A.M., Rose, H.J., Skelton, P., Lamb, R.C., McEnery, J.E., Moriarty, P., Quinn, J., & Weekes, T.C. Limits to Quantum Gravity Effects on Energy Dependence of the Speed of Light from Observations of TeV Flares in Active Galaxies. United States. doi:10.1103/PhysRevLett.83.2108.
Biller, S.D., Breslin, A.C., Carson, M., Fegan, D.J., Masterson, C., McKernan, B., Buckley, J., Catanese, M., Carter-Lewis, D.A., Krennrich, F., Samuelson, F., Cawley, M.F., Finley, J.P., Gaidos, J.A., Lessard, R., Sembroski, G., Hillas, A.M., Rose, H.J., Skelton, P., Lamb, R.C., McEnery, J.E., Moriarty, P., Quinn, J., and Weekes, T.C. Wed . "Limits to Quantum Gravity Effects on Energy Dependence of the Speed of Light from Observations of TeV Flares in Active Galaxies". United States. doi:10.1103/PhysRevLett.83.2108.
@article{osti_686479,
title = {Limits to Quantum Gravity Effects on Energy Dependence of the Speed of Light from Observations of TeV Flares in Active Galaxies},
author = {Biller, S.D. and Breslin, A.C. and Carson, M. and Fegan, D.J. and Masterson, C. and McKernan, B. and Buckley, J. and Catanese, M. and Carter-Lewis, D.A. and Krennrich, F. and Samuelson, F. and Cawley, M.F. and Finley, J.P. and Gaidos, J.A. and Lessard, R. and Sembroski, G. and Hillas, A.M. and Rose, H.J. and Skelton, P. and Lamb, R.C. and McEnery, J.E. and Moriarty, P. and Quinn, J. and Weekes, T.C.},
abstractNote = {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 quantum gravitational energy scale. Recent theoretical work suggests that such an energy scale could be less than the Planck mass and perhaps as low as 10{sup 16} thinspthinspGeV. The limits derived here indicate this energy scale to be in excess of 6{times}10{sup 16} thinspthinspGeV for at least one approach to quantum gravity in the context of D-brane string theory. To the best of our knowledge, this constitutes the first convincing limit on such phenomena in this energy regime. {copyright} {ital 1999} {ital The American Physical Society}},
doi = {10.1103/PhysRevLett.83.2108},
journal = {Physical Review Letters},
number = 11,
volume = 83,
place = {United States},
year = {1999},
month = {9}
}