GAMMA-RAY ACTIVITY IN THE CRAB NEBULA: THE EXCEPTIONAL FLARE OF 2011 APRIL
作者： R Buehler , JD Scargle , RD Blandford , Luca Baldini , MG Baring
DOI: 10.1088/0004-637X/749/1/26
关键词:
摘要: The Large Area Telescope on board the Fermi satellite observed a gamma-ray flare in Crab Nebula lasting for approximately nine days April of 2011. source, which at optical wavelengths has size 11 lt-yr across, doubled its flux within eight hours. peak photon was (186 ± 6) × 10–7 cm–2 s–1 above 100 MeV, corresponds to 30-fold increase compared average value. During flare, new component emerged spectral energy distribution, peaked an (375 26) MeV maximum. observations imply that emission region likely relativistically beamed toward us and variations motion are responsible variability.
harvard.edu
iaea.org
hku.hk
osti.gov参考文章(64)
L. Kuiper, W. Hermsen, G. Cusumano, R. Diehl, V. Schönfelder, A. Strong, K. Bennett, M. L. McConnell, The Crab pulsar in the 0.75-30 MeV range as seen by CGRO COMPTEL Astronomy & Astrophysics. ,vol. 378, pp. 918- 935 ,(2001) , 10.1051/0004-6361:20011256
J. J. Hester, K. Mori, D. Burrows, J. S. Gallagher, J. R. Graham, M. Halverson, A. Kader, F. C. Michel, P. Scowen, Hubble Space Telescope and Chandra Monitoring of the Crab Synchrotron Nebula The Astrophysical Journal. ,vol. 577, ,(2002) , 10.1086/344132
Jeffrey D. Scargle, Studies in Astronomical Time Series Analysis. V. Bayesian Blocks, a New Method to Analyze Structure in Photon Counting Data* The Astrophysical Journal. ,vol. 504, pp. 405- 418 ,(1998) , 10.1086/306064
P. S. Ray, M. Kerr, D. Parent, A. A. Abdo, L. Guillemot, S. M. Ransom, N. Rea, M. T. Wolff, A. Makeev, M. S. E. Roberts, F. Camilo, M. Dormody, P. C. C. Freire, J. E. Grove, C. Gwon, A. K. Harding, S. Johnston, M. Keith, M. Kramer, P. F. Michelson, R. W. Romani, P. M. Saz Parkinson, D. J. Thompson, P. Weltevrede, K. S. Wood, M. Ziegler, PRECISE γ-RAY TIMING AND RADIO OBSERVATIONS OF 17
FERMI
γ-RAY PULSARS The Astrophysical Journal Supplement Series. ,vol. 194, pp. 17- ,(2011) , 10.1088/0067-0049/194/2/17
A Bouvier, A Cannon, A Cesarini, A Falcone, A Furniss, A Imran, A McCann, AN Otte, AS Madhavan, A Varlotta, AW Smith, A Weinstein, B Zitzer, C Duke, CM Hui, DA Williams, DB Saxon, D Gall, D Hanna, D Kieda, D Staszak, E Aliu, E Collins-Hughes, E Roache, F Krennrich, F Pizlo, GD Å entürk, G Finnegan, G Gyuk, GH Gillanders, GH Sembroski, G Hughes, G Maier, G TeÅ, H Huan, HJ Rose, H Krawczynski, H Prokoph, JE Ward, J Grube, JH Buckley, J Holder, JL Christiansen, JP Finley, J Quinn, J Ruppel, JS Perkins, J Tyler, K Byrum, K Gibbs, K Ragan, K Tsurusaki, LC Reyes, L Ciupik, L Fortson, M Beilicke, M Errando, MJ Lang, M Kertzman, M Lyutikov, M McCutcheon, M Orr, MP Connolly, M Pohl, M Schroedter, M Theiling, M Vivier, N Galante, N Karlsson, N Park, P Kaaret, P Majumdar, P Moriarty, P Nuñez, PT Reynolds, RA Ong, R Dickherber, R Guenette, R Mukherjee, S Godambe, S Griffin, SM Bradbury, S McArthur, SP Wakely, S Thibadeau, S Vincent, T Arlen, T Aune, TB Humensky, TC Weekes, T Weisgarber, V Bugaev, VV Vassiliev, W Benbow, W Cui, None, Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar Science. ,vol. 334, pp. 69- 72 ,(2011) , 10.1126/SCIENCE.1208192
O. C. de Jager, A. K. Harding, The expected high-energy to ultra-high-energy gamma-ray spectrum of the Crab Nebula The Astrophysical Journal. ,vol. 396, pp. 161- 172 ,(1992) , 10.1086/171706
K. R. Lind, R. D. Blandford, Semidynamical models of radio jets: relativistic beaming and source counts. The Astrophysical Journal. ,vol. 295, pp. 358- 367 ,(1985) , 10.1086/163380
O. C. de Jager, A. K. Harding, P. F. Michelson, H. I. Nel, P. L. Nolan, P. Sreekumar, D. J. Thompson, Gamma-Ray Observations of the Crab Nebula: A Study of the Synchro-Compton Spectrum The Astrophysical Journal. ,vol. 457, pp. 253- ,(1996) , 10.1086/176726
W. B. Atwood, M. Ziegler, R. P. Johnson, B. M. Baughman, A Time-differencing Technique for Detecting Radio-quiet Gamma-Ray Pulsars The Astrophysical Journal. ,vol. 652, ,(2006) , 10.1086/510018
J. G. Kirk, Particle acceleration in relativistic current sheets Physical Review Letters. ,vol. 92, pp. 181101- ,(2004) , 10.1103/PHYSREVLETT.92.181101