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PULSED GAMMA-RAYS FROM PSR J2021+3651 WITH THE FERMI LARGE AREA TELESCOPE
- Abdo, A. A. (author)
- Ackermann, M. (author)
- Ajello, M. (author)
- show more...
- Atwood, W. B. (author)
- Baldini, L. (author)
- Ballet, J. (author)
- Barbiellini, G. (author)
- Bastieri, D. (author)
- Battelino, M. (author)
- Baughman, B. M. (author)
- Bechtol, K. (author)
- Bellazzini, R. (author)
- Berenji, B. (author)
- Bloom, E. D. (author)
- Bogaert, G. (author)
- Borgland, A. W. (author)
- Bregeon, J. (author)
- Brez, A. (author)
- Brigida, M. (author)
- Bruel, P. (author)
- Burnett, T. H. (author)
- Caliandro, G. A. (author)
- Cameron, R. A. (author)
- Camilo, F. (author)
- Caraveo, P. A. (author)
- Casandjian, J. M. (author)
- Cecchi, C. (author)
- Charles, E. (author)
- Chekhtman, A. (author)
- Chen, A. W. (author)
- Cheung, C. C. (author)
- Chiang, J. (author)
- Ciprini, S. (author)
- Cognard, I. (author)
- Cohen-Tanugi, J. (author)
- Cominsky, L. R. (author)
- Conrad, J. (author)
- Cutini, S. (author)
- Demorest, P. (author)
- Dermer, C. D. (author)
- de Angelis, A. (author)
- de Luca, A. (author)
- de Palma, F. (author)
- Digel, S. W. (author)
- Dormody, M. (author)
- Silva, E. D. E. (author)
- Drell, P. S. (author)
- Dubois, R. (author)
- Dumora, D. (author)
- Espinoza, C. (author)
- Farnier, C. (author)
- Favuzzi, C. (author)
- Focke, W. B. (author)
- Frailis, M. (author)
- Freire, P. C. C. (author)
- Fukazawa, Y. (author)
- Funk, S. (author)
- Fusco, P. (author)
- Gargano, F. (author)
- Gasparrini, D. (author)
- Gehrels, N. (author)
- Germani, S. (author)
- Giebels, B. (author)
- Giglietto, N. (author)
- Giordano, F. (author)
- Glanzman, T. (author)
- Godfrey, G. (author)
- Grenier, I. A. (author)
- Grondin, M. H. (author)
- Grove, J. E. (author)
- Guillemot, L. (author)
- Guiriec, S. (author)
- Hanabata, Y. (author)
- Harding, A. K. (author)
- Hayashida, M. (author)
- Hays, E. (author)
- Hughes, R. E. (author)
- Johannesson, G. (author)
- Johnson, A. S. (author)
- Johnson, R. P. (author)
- Johnson, T. J. (author)
- Johnson, W. N. (author)
- Johnston, S. (author)
- Kamae, T. (author)
- Katagiri, H. (author)
- Kataoka, J. (author)
- Kawai, N. (author)
- Kerr, M. (author)
- Kiziltan, B. (author)
- Knodlseder, J. (author)
- Komin, N. (author)
- Kramer, M. (author)
- Kuehn, F. (author)
- Kuss, M. (author)
- Lande, J. (author)
- Latronico, L. (author)
- Lee, S. H. (author)
- Lemoine-Goumard, M. (author)
- Longo, F. (author)
- Loparco, F. (author)
- Lott, B. (author)
- Lovellette, M. N. (author)
- Lubrano, P. (author)
- Lyne, A. G. (author)
- Makeev, A. (author)
- Manchester, R. N. (author)
- Marelli, M. (author)
- Mazziotta, M. N. (author)
- McConville, W. (author)
- McEnery, J. E. (author)
- McLaughlin, M. A. (author)
- Meurer, C. (author)
- Michelson, P. F. (author)
- Mitthumsiri, W. (author)
- Mizuno, T. (author)
- Moiseev, A. A. (author)
- Monte, C. (author)
- Monzani, M. E. (author)
- Morselli, A. (author)
- Moskalenko, I. V. (author)
- Murgia, S. (author)
- Nolan, P. L. (author)
- Noutsos, A. (author)
- Nuss, E. (author)
- Ohsugi, T. (author)
- Omodei, N. (author)
- Orlando, E. (author)
- Ormes, J. F. (author)
- Ozaki, M. (author)
- Paneque, D. (author)
- Panetta, J. H. (author)
- Parent, D. (author)
- Pepe, M. (author)
- Pesce-Rollins, M. (author)
- Piron, F. (author)
- Porter, T. A. (author)
- Raino, S. (author)
- Rando, R. (author)
- Ransom, S. M. (author)
- Razzano, M. (author)
- Reimer, A. (author)
- Reimer, O. (author)
- Reposeur, T. (author)
- Ritz, S. (author)
- Rochester, L. S. (author)
- Rodriguez, A. Y. (author)
- Romani, R. W. (author)
- Ryde, F. (author)
- Sadrozinski, H. F. W. (author)
- Sanchez, D. (author)
- Parkinson, P. M. S. (author)
- Sgro, C. (author)
- Sierpowska-Bartosik, A. (author)
- Siskind, E. J. (author)
- Smith, D. A. (author)
- Smith, P. D. (author)
- Spandre, G. (author)
- Spinelli, P. (author)
- Stappers, B. W. (author)
- Starck, J. L. (author)
- Strickman, M. S. (author)
- Suson, D. J. (author)
- Tajima, H. (author)
- Takahashi, H. (author)
- Takahashi, T. (author)
- Tanaka, T. (author)
- Thayer, J. B. (author)
- Thayer, J. G. (author)
- Theureau, G. (author)
- Thompson, D. J. (author)
- Thorsett, S. E. (author)
- Tibaldo, L. (author)
- Torres, D. F. (author)
- Tosti, G. (author)
- Tramacere, A. (author)
- Uchiyama, Y. (author)
- Usher, T. L. (author)
- Van Etten, A. (author)
- Vilchez, N. (author)
- Vitale, V. (author)
- Waite, A. P. (author)
- Wallace, E. (author)
- Watters, K. (author)
- Weltevrede, P. (author)
- Wood, K. S. (author)
- Ziegler, M. (author)
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- (creator_code:org_t)
- 2009
- 2009
- English.
- In: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 700:2, s. 1059-1066
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- We report the detection of pulsed gamma-rays from the young, spin-powered radio pulsar PSR J2021+3651 using data acquired with the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope (formerly GLAST). The light curve consists of two narrow peaks of similar amplitude separated by 0.468 +/- 0.002 in phase. The first peak lags the maximum of the 2 GHz radio pulse by 0.162 +/- 0.004 +/- 0.01 in phase. The integral gamma-ray photon flux above 100 MeV is (56 +/- 3 +/- 11) x 10(-8) cm(-2) s(-1). The photon spectrum is well described by an exponentially cut-off power law of the form dF/dE = kE(-Gamma)e((-E/Ec)), where the energy E is expressed in GeV. The photon index is Gamma = 1.5 +/- 0.1 +/- 0.1 and the exponential cut-off is E-c = 2.4 +/- 0.3 +/- 0.5 GeV. The first uncertainty is statistical and the second is systematic. The integral photon flux of the bridge is approximately 10% of the pulsed emission, and the upper limit on off-pulse gamma-ray emission from a putative pulsar wind nebula is < 10% of the pulsed emission at the 95% confidence level. Radio polarization measurements yield a rotation measure of RM = 524 +/- 4 rad m(-2) but a poorly constrained magnetic geometry. Re-analysis of Chandra X-ray Observatory data enhanced the significance of the weak X-ray pulsations, and the first peak is roughly phase aligned with the first gamma-ray peak. We discuss the emission region and beaming geometry based on the shape and spectrum of the gamma-ray light curve combined with radio and X-ray measurements, and the implications for the pulsar distance. Gamma-ray emission from the polar cap region seems unlikely for this pulsar.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Fysik
- Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
- Abdo, A. A.
- Ackermann, M.
- Ajello, M.
- Atwood, W. B.
- Baldini, L.
- Ballet, J.
- show more...
- Barbiellini, G.
- Bastieri, D.
- Battelino, M.
- Baughman, B. M.
- Bechtol, K.
- Bellazzini, R.
- Berenji, B.
- Bloom, E. D.
- Bogaert, G.
- Borgland, A. W.
- Bregeon, J.
- Brez, A.
- Brigida, M.
- Bruel, P.
- Burnett, T. H.
- Caliandro, G. A.
- Cameron, R. A.
- Camilo, F.
- Caraveo, P. A.
- Casandjian, J. M ...
- Cecchi, C.
- Charles, E.
- Chekhtman, A.
- Chen, A. W.
- Cheung, C. C.
- Chiang, J.
- Ciprini, S.
- Cognard, I.
- Cohen-Tanugi, J.
- Cominsky, L. R.
- Conrad, J.
- Cutini, S.
- Demorest, P.
- Dermer, C. D.
- de Angelis, A.
- de Luca, A.
- de Palma, F.
- Digel, S. W.
- Dormody, M.
- Silva, E. D. E.
- Drell, P. S.
- Dubois, R.
- Dumora, D.
- Espinoza, C.
- Farnier, C.
- Favuzzi, C.
- Focke, W. B.
- Frailis, M.
- Freire, P. C. C.
- Fukazawa, Y.
- Funk, S.
- Fusco, P.
- Gargano, F.
- Gasparrini, D.
- Gehrels, N.
- Germani, S.
- Giebels, B.
- Giglietto, N.
- Giordano, F.
- Glanzman, T.
- Godfrey, G.
- Grenier, I. A.
- Grondin, M. H.
- Grove, J. E.
- Guillemot, L.
- Guiriec, S.
- Hanabata, Y.
- Harding, A. K.
- Hayashida, M.
- Hays, E.
- Hughes, R. E.
- Johannesson, G.
- Johnson, A. S.
- Johnson, R. P.
- Johnson, T. J.
- Johnson, W. N.
- Johnston, S.
- Kamae, T.
- Katagiri, H.
- Kataoka, J.
- Kawai, N.
- Kerr, M.
- Kiziltan, B.
- Knodlseder, J.
- Komin, N.
- Kramer, M.
- Kuehn, F.
- Kuss, M.
- Lande, J.
- Latronico, L.
- Lee, S. H.
- Lemoine-Goumard, ...
- Longo, F.
- Loparco, F.
- Lott, B.
- Lovellette, M. N ...
- Lubrano, P.
- Lyne, A. G.
- Makeev, A.
- Manchester, R. N ...
- Marelli, M.
- Mazziotta, M. N.
- McConville, W.
- McEnery, J. E.
- McLaughlin, M. A ...
- Meurer, C.
- Michelson, P. F.
- Mitthumsiri, W.
- Mizuno, T.
- Moiseev, A. A.
- Monte, C.
- Monzani, M. E.
- Morselli, A.
- Moskalenko, I. V ...
- Murgia, S.
- Nolan, P. L.
- Noutsos, A.
- Nuss, E.
- Ohsugi, T.
- Omodei, N.
- Orlando, E.
- Ormes, J. F.
- Ozaki, M.
- Paneque, D.
- Panetta, J. H.
- Parent, D.
- Pepe, M.
- Pesce-Rollins, M ...
- Piron, F.
- Porter, T. A.
- Raino, S.
- Rando, R.
- Ransom, S. M.
- Razzano, M.
- Reimer, A.
- Reimer, O.
- Reposeur, T.
- Ritz, S.
- Rochester, L. S.
- Rodriguez, A. Y.
- Romani, R. W.
- Ryde, F.
- Sadrozinski, H. ...
- Sanchez, D.
- Parkinson, P. M. ...
- Sgro, C.
- Sierpowska-Barto ...
- Siskind, E. J.
- Smith, D. A.
- Smith, P. D.
- Spandre, G.
- Spinelli, P.
- Stappers, B. W.
- Starck, J. L.
- Strickman, M. S.
- Suson, D. J.
- Tajima, H.
- Takahashi, H.
- Takahashi, T.
- Tanaka, T.
- Thayer, J. B.
- Thayer, J. G.
- Theureau, G.
- Thompson, D. J.
- Thorsett, S. E.
- Tibaldo, L.
- Torres, D. F.
- Tosti, G.
- Tramacere, A.
- Uchiyama, Y.
- Usher, T. L.
- Van Etten, A.
- Vilchez, N.
- Vitale, V.
- Waite, A. P.
- Wallace, E.
- Watters, K.
- Weltevrede, P.
- Wood, K. S.
- Ylinen, T.
- Ziegler, M.
- show less...
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
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- Linnaeus University
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