DISCOVERY OF HIGH-ENERGY GAMMA-RAY EMISSION FROM THE BINARY SYSTEM PSR B1259-63/LS 2883 AROUND PERIASTRON WITH FERMI

被引:89
作者
Abdo, A. A. [28 ,40 ]
Ackermann, M. [1 ,2 ]
Ajello, M. [1 ,2 ]
Allafort, A. [1 ,2 ]
Ballet, J. [3 ]
Barbiellini, G. [4 ,5 ]
Bastieri, D. [6 ,7 ]
Bechtol, K. [1 ,2 ]
Bellazzini, R. [8 ]
Berenji, B. [1 ,2 ]
Blandford, R. D. [1 ,2 ]
Bonamente, E. [9 ,10 ]
Borgland, A. W. [1 ,2 ]
Bregeon, J. [8 ]
Brigida, M. [11 ,12 ]
Bruel, P. [13 ]
Buehler, R. [1 ,2 ]
Buson, S. [6 ,7 ]
Caliandro, G. A. [14 ]
Cameron, R. A. [1 ,2 ]
Camilo, F. [15 ]
Caraveo, P. A. [16 ]
Cecchi, C. [9 ,10 ]
Charles, E. [1 ,2 ]
Chaty, S. [3 ]
Chekhtman, A. [17 ]
Chernyakova, M. [18 ]
Cheung, C. C. [19 ]
Chiang, J. [1 ,2 ]
Ciprini, S. [10 ]
Claus, R. [1 ,2 ]
Cohen-Tanugi, J. [20 ]
Cominsky, L. R. [21 ]
Corbel, S. [3 ,22 ]
Cutini, S. [23 ]
D'Ammando, F. [24 ,25 ]
de Angelis, A. [26 ,27 ]
den Hartog, P. R. [1 ,2 ]
de Palma, F. [11 ,12 ]
Dermer, C. D. [28 ]
Digel, S. W. [1 ,2 ]
do Couto e Silva, E. [1 ,2 ]
Dormody, M. [29 ,30 ]
Drell, P. S. [1 ,2 ]
Drlica-Wagner, A. [1 ,2 ]
Dubois, R. [1 ,2 ]
Dubus, G. [31 ]
Dumora, D. [32 ]
Enoto, T. [1 ,2 ]
Espinoza, C. M. [33 ]
机构
[1] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA
[2] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA
[3] Univ Paris Diderot, CEA Saclay, Lab AIM, CEA,IRFU,CNRS,Serv Astrophys, F-91191 Gif Sur Yvette, France
[4] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy
[5] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy
[6] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
[7] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy
[8] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy
[9] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy
[10] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy
[11] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy
[12] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[13] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[14] CSIC, IEEC, Inst Ciencias Espai, Barcelona 08193, Spain
[15] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA
[16] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy
[17] Artep Inc, Ellicott City, MD 21042 USA
[18] Dublin Inst Adv Studies, Sch Cosm Phys, Dublin 2, Ireland
[19] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA
[20] Univ Montpellier 2, CNRS, IN2P3, Lab Univers & Particules Montpellier, Montpellier, France
[21] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA
[22] Inst Univ France, F-75005 Paris, France
[23] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00044 Rome, Italy
[24] IASF Palermo, I-90146 Palermo, Italy
[25] INAF Ist Astrofis Spaziale & Fis Cosm, I-00133 Rome, Italy
[26] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy
[27] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy
[28] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA
[29] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA
[30] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
[31] Univ Grenoble 1, Inst Planetol & Astrophys Grenoble, CNRS, INSU,UMR 5274, F-38041 Grenoble, France
[32] Univ Bordeaux 1, Ctr Etud Nucl Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France
[33] Univ Manchester, Sch Phys & Astron, Jodrell Bank, Ctr Astrophys, Manchester M13 9PL, Lancs, England
[34] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[35] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan
[36] INAF Ist Radioastron, I-40129 Bologna, Italy
[37] Univ Tubingen, Inst Astron & Astrophys, D-72076 Tubingen, Germany
[38] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37240 USA
[39] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA
[40] George Mason Univ, Coll Sci, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA
[41] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland
[42] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[43] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
[44] CSIRO Astron & Space Sci, Australia Telescope Natl Facil, Epping, NSW 1710, Australia
[45] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan
[46] IRAP, CNRS, F-31028 Toulouse 4, France
[47] Univ Toulouse, UPS OMP, IRAP, GAHEC, Toulouse, France
[48] Max Planck Inst Radioastron, D-53121 Bonn, Germany
[49] CRESST, Greenbelt, MD 20771 USA
[50] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy
基金
瑞典研究理事会;
关键词
binaries: eclipsing; gamma rays: stars; pulsars: individual (PSR B1259-63); X-rays: binaries; PULSAR; RADIO; TELESCOPE; PASSAGE; PSR-B1259-63/SS2883; PSR-1259-63; RADIATION; CATALOG; WIND;
D O I
10.1088/2041-8205/736/1/L11
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report on the discovery of >= 100 MeV gamma-rays from the binary system PSR B1259-63/LS 2883 using the Large Area Telescope (LAT) on board Fermi. The system comprises a radio pulsar in orbit around a Be star. We report on LAT observations from near apastron to similar to 128 days after the time of periastron, t(p), on 2010 December 15. No gamma-ray emission was detected from this source when it was far from periastron. Faint gamma-ray emission appeared as the pulsar approached periastron. At similar to t(p) + 30 days, the >= 100 MeV gamma-ray flux increased over a period of a few days to a peak flux 20-30 times that seen during the pre-periastron period, but with a softer spectrum. For the following month, it was seen to be variable on daily timescales, but remained at similar to(1-4) x 10(-6) cm(-2) s(-1) before starting to fade at similar to t(p) + 57 days. The total gamma-ray luminosity observed during this period is comparable to the spin-down power of the pulsar. Simultaneous radio and X-ray observations of the source showed no corresponding dramatic changes in radio and X-ray flux between the pre-periastron and post-periastron flares. We discuss possible explanations for the observed gamma-ray-only flaring of the source.
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页数:6
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