DISCOVERY OF PULSED γ-RAYS FROM THE YOUNG RADIO PULSAR PSR J1028-5819 WITH THE FERMI LARGE AREA TELESCOPE

被引：36

作者：

Abdo, A. A. ^{[2
]}

Ackermann, M. ^{[3
,4
]}

Atwood, W. B. ^{[5
,6
]}

Baldini, L. ^{[7
]}

Ballet, J. ^{[8
]}

Barbiellini, G. ^{[9
,10
]}

Baring, M. G. ^{[11
]}

Bastieri, D. ^{[12
,13
]}

Baughman, B. M. ^{[14
]}

Bechtol, K. ^{[3
,4
]}

Bellazzini, R. ^{[7
]}

Berenji, B. ^{[3
,4
]}

Bloom, E. D. ^{[3
,4
]}

Bonamente, E. ^{[15
,16
]}

Borgland, A. W. ^{[3
,4
]}

Bregeon, J. ^{[7
]}

Brez, A. ^{[7
]}

Brigida, M. ^{[17
,18
]}

Bruel, P. ^{[19
]}

Burnett, T. H. ^{[20
]}

Caliandro, G. A. ^{[17
,18
]}

Cameron, R. A. ^{[3
,4
]}

Caraveo, P. A. ^{[21
]}

Casandjian, J. M. ^{[8
]}

Cecchi, C. ^{[15
,16
]}

Charles, E. ^{[3
,4
]}

Chekhtman, A. ^{[2
,22
]}

Cheung, C. C. ^{[1
]}

Chiang, J. ^{[3
,4
]}

Ciprini, S. ^{[15
,16
]}

Claus, R. ^{[3
,4
]}

Cohen-Tanugi, J. ^{[23
]}

Cominsky, L. R. ^{[24
]}

Conrad, J. ^{[25
,26
,27
]}

Dermer, C. D. ^{[2
]}

de Angelis, A. ^{[28
,29
]}

de Palma, F. ^{[17
,18
]}

Digel, S. W. ^{[3
,4
]}

Donato, D. ^{[1
]}

Dormody, M. ^{[5
,6
]}

do Couto e Silva, E. ^{[3
,4
]}

Drell, P. S. ^{[3
,4
]}

Dubois, R. ^{[3
,4
]}

Dumora, D. ^{[30
,31
]}

Edmonds, Y. ^{[3
,4
]}

Farnier, C. ^{[23
]}

Favuzzi, C. ^{[17
,18
]}

Fleury, P. ^{[19
]}

Focke, W. B. ^{[3
,4
]}

Frailis, M. ^{[28
,29
]}

机构：

[1] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA

[2] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA

[3] Stanford Univ, W W Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA

[4] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94305 USA

[5] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA

[6] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

[7] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy

[8] Univ Paris, CEA Saclay, Serv Astrophys, Lab AIM,CEA,IRFU,CNRS, F-91191 Gif Sur Yvette, France

[9] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy

[10] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy

[11] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA

[12] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[13] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy

[14] Ohio State Univ, Dept Phys, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA

[15] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy

[16] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy

[17] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy

[18] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[19] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France

[20] Univ Washington, Dept Phys, Seattle, WA 98195 USA

[21] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy

[22] George Mason Univ, Fairfax, VA 22030 USA

[23] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France

[24] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA

[25] Oskar Klein Ctr Cosmo Particle Phys, SE-10691 Stockholm, Sweden

[26] Royal Inst Technol, Dept Phys, KTH, SE-10691 Stockholm, Sweden

[27] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden

[28] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy

[29] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy

[30] CEN Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France

[31] Univ Bordeaux, CEN Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France

[32] Hiroshima Univ, Dept Phys Sci, Higashihiroshima 7398526, Japan

[33] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Higashihiroshima 7398526, Japan

[34] ASI, Sci Data Ctr, I-00044 Frascati, Roma, Italy

[35] Univ Maryland, College Pk, MD 20742 USA

[36] CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia

[37] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[38] RIKEN, Inst Phys & Chem Res, Cosm Radiat Lab, Wako, Saitama 3510198, Japan

[39] CNR, SUPS 47, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France

[40] Univ Manchester, Jodrell Bank, Ctr Astrophys, Manchester M13 9PL, Lancs, England

[41] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy

[42] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany

[43] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA

[44] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain

[45] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA

[46] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA

[47] ICREA, Barcelona, Spain

[48] CIFS, I-10133 Turin, Italy

[49] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

[50] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2009年 / 695卷 / 01期

关键词：

pulsars: general; stars: neutron; RADIATION; EMISSION; CATALOG; SEARCH;

D O I：

10.1088/0004-637X/695/1/L72

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Radio pulsar PSR J1028-5819 was recently discovered in a high-frequency search (at 3.1 GHz) in the error circle of the Energetic Gamma-Ray Experiment Telescope (EGRET) source 3EG J1027-5817. The spin-down power of this young pulsar is great enough to make it very likely the counterpart for the EGRET source. We report here the discovery of gamma-ray pulsations from PSR J1028-5819 in early observations by the Large Area Telescope (LAT) on the Fermi Gamma-Ray Space Telescope. The gamma-ray light curve shows two sharp peaks having phase separation of 0.460 +/- 0.004, trailing the very narrow radio pulse by 0.200 +/- 0.003 in phase, very similar to that of other known gamma-ray pulsars. The measured gamma-ray flux gives an efficiency for the pulsar of similar to 10-20% (for outer magnetosphere beam models). No evidence of a surrounding pulsar wind nebula is seen in the current Fermi data but limits on associated emission are weak because the source lies in a crowded region with high background emission. However, the improved angular resolution afforded by the LAT enables the disentanglement of the previous COS-B and EGRET source detections into at least two distinct sources, one of which is now identified as PSR J1028-5819.

引用

页码：L72 / L77

页数：6

共 26 条

[1] The Fermi Gamma-Ray Space Telescope Discovers the Pulsar in the Young Galactic Supernova Remnant CTA 1
Abdo, A. A.
Ackermann, M.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Baring, M. G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bogaert, G.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carlson, P.
Casandjian, J. M.
Cecchi, C.
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Cutini, S.
Davis, D. S.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
Dormody, M.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Edmonds, Y.
Farnier, C.
[J]. SCIENCE, 2008, 322 (5905) : 1218 - 1221
[2] ABDO AA, 2009, APJS UNPUB
[3] ABDO AA, 2009, APJ IN PRESS
[4] A time-differencing technique for detecting radio-quiet gamma-ray pulsars
Atwood, W. B.
Ziegler, M.
Johnson, R. P.
Baughman, B. M.
[J]. ASTROPHYSICAL JOURNAL, 2006, 652 (01) : L49 - L52
[5] Atwood W. B., 2009, ASTROPHYS J, V697, P1071
[6] High-energy emission from pulsars: the polar cap scenario
Baring, MG
[J]. HIGH-ENERGY STUDIES OF SUPERNOVA REMNANTS AND NEUTRON STARS, 2004, 33 (04): : 552 - 560
[7] Very long baseline array measurement of nine pulsar parallaxes
Brisken, WF
Benson, JM
Goss, WM
Thorsett, SE
[J]. ASTROPHYSICAL JOURNAL, 2002, 571 (02) : 906 - 917
[8] The Swift X-ray telescope
Burrows, DN
Hill, JE
Nousek, JA
Kennea, JA
Wells, A
Osborne, JP
Abbey, AF
Beardmore, A
Mukerjee, K
Short, ADT
Chincarini, G
Campana, S
Citterio, O
Moretti, A
Pagani, C
Tagliaferri, G
Giommi, P
Capalbi, M
Tamburelli, F
Angelini, L
Cusumano, G
Bräuninger, HW
Burkert, W
Hartner, GD
[J]. SPACE SCIENCE REVIEWS, 2005, 120 (3-4) : 165 - 195
[9] ENERGETIC RADIATION FROM RAPIDLY SPINNING PULSARS .1. OUTER MAGNETOSPHERE GAPS
CHENG, KS
HO, C
RUDERMAN, M
[J]. ASTROPHYSICAL JOURNAL, 1986, 300 (02) : 500 - 521
[10] DEJAGER OC, 1989, ASTRON ASTROPHYS, V221, P180

← 1 2 3 →