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

Abdo AA, Ackermann M, Atwood WB, Baldini L, Ballet J, Barbiellini G, Baring MG, Bastieri D, Baughman BM, Bechtol K, Bellazzini R, Berenji B, Bloom ED, Bonamente E, Borgland AW, Bregeon J, Brez A, Brigida M, Bruel P, Burnett TH, Caliandro GA, Cameron RA, Caraveo PA, Casandjian JM, Cecchi C, Charles E, Chekhtman A, Cheung CC, Chiang J, Ciprini S, Claus R, Cohen-Tanugi J, Cominsky LR, Conrad J, Dermer CD, De Angelis A, De Palma F, Digel SW, Donato D, Dormody M, Do Couto E Silva E, Drell PS, Dubois R, Dumora D, Edmonds Y, Farnier C, Favuzzi C, Fleury P, Focke WB, Frailis M, 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 IA, Grondin MH, Grove JE, Guillemot L, Guiriec S, Harding AK, Hayashida M, Hays E, Hughes RE, Johannesson G, Johnson AS, Johnson RP, Johnson TJ, Johnson WN, Johnston S, Kamae T, Katagiri H, Kataoka J, Kawai N, Kerr M, Knoedlseder J, Komin N, Kramer M, Kuehn F, Kuss MW, Latronico L, Lee SH, Lemoine-Goumard M, Longo F, Loparco F, Lott B, Lovellette MN, Lubrano P, Makeev A, Marelli M, Mazziotta MN, Mcconville W, Mcenery JE, Meurer C, Michelson PF, Mitthumsiri W, Mizuno T, Moiseev AA, Monte C, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nolan PL, Nuss E, Ohsugi T, Omodei N, Orlando E, Ormes JF, Paneque D, Panetta JH, Parent D, Pepe M, Pesce-Rollins M, Piron F, Porter TA, Raino S, Rando R, Razzano M, Reimer A, Reimer O, Reposeur T, Ritz S, Rochester LS, Rodriguez AY, Romani RW, Roth M, Ryde F, Sadrozinski HFW, Sanchez D, Sander A, Parkinson PMS, Sgro C, Siskind EJ, Smith DA, Smith PD, Spandre G, Spinelli P, Starck JL, Strickman MS, Suson DJ, Tajima H, Takahashi HH, Tanaka T, Thayer JB, Thayer JG, Thompson DJ, Thorsett SE, Tibaldo L, Torres DF, Tosti G, Tramacere A, Uchiyama Y, Usher TL, Van Etten A, Vilchez N, Vitale V, Waite AP, Watters K, Wood KS, Ylinen T, Ziegler M, Hobbs G, Keith M, Manchester RN, Weltevrede P (2009)

Publication Type: Journal article

Publication year: 2009

Journal

Book Volume: 695

Pages Range: L72-L77

Journal Issue: 1

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

Abstract

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.

Authors with CRIS profile

Involved external institutions

U.S. Naval Research Laboratory United States (USA) (US) National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF) Italy (IT) Stanford University United States (USA) (US) National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN) Italy (IT) Ohio State University United States (USA) (US) École Polytechnique - Université Paris-Saclay France (FR) University of Washington United States (USA) (US) University of Paris 4 - Paris-Sorbonne / Université paris IV Paris-Sorbonne France (FR) Consiglio Nazionale delle Ricerche (CNR) / National Research Council of Italy Italy (IT) Université Bordeaux 1, Sciences et Technologies France (FR) University of California Santa Cruz United States (USA) (US) Rice University United States (USA) (US) Politecnico di Bari Italy (IT) Sonoma State University United States (USA) (US) University of Udine / Università degli Studi di Udine Italy (IT) Italian Space Agency / Agenzia Spaziale Italiana (ASI) Italy (IT) National Aeronautics and Space Administration (NASA) United States (USA) (US) University of Montpellier / Université Montpellier France (FR) Commonwealth Scientific and Industrial Research Organisation (CSIRO) Australia (AU) Hiroshima University / 広島大学 Japan (JP) University of Denver United States (USA) (US) The Oskar Klein Centre Sweden (SE) Spanish National Research Council / Consejo Superior de Investigaciones Científicas (CSIC) Spain (ES) Tokyo Institute of Technology Japan (JP) University of Manchester United Kingdom (GB) Max-Planck-Institut für extraterrestrische Physik (MPE) / Max Planck Institute for Extraterrestrial Physics Germany (DE) Purdue University Northwest / Purdue University Calumet United States (USA) (US) NYCB Real-Time Computing, Inc. United States (USA) (US)

How to cite

APA:

Abdo, A.A., Ackermann, M., Atwood, W.B., Baldini, L., Ballet, J., Barbiellini, G.,... Weltevrede, P. (2009). DISCOVERY OF PULSED gamma-RAYS FROM THE YOUNG RADIO PULSAR PSR J1028-5819 WITH THE FERMI LARGE AREA TELESCOPE. Astrophysical Journal Letters, 695(1), L72-L77. https://doi.org/10.1088/0004-637X/695/1/L72

MLA:

Abdo, A. A., et al. "DISCOVERY OF PULSED gamma-RAYS FROM THE YOUNG RADIO PULSAR PSR J1028-5819 WITH THE FERMI LARGE AREA TELESCOPE." Astrophysical Journal Letters 695.1 (2009): L72-L77.

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