FERMI LARGE AREA TELESCOPE DETECTION OF PULSED gamma-RAYS FROM THE VELA-LIKE PULSARS PSR J1048-5832 AND PSR J2229+6114

Abdo AA, Ackermann M, Ajello M, Atwood WB, Axelsson M, 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, Caliandro GA, Cameron RA, Camilo F, Caraveo PA, Casandjian JM, Cecchi C, Chekhtman A, Cheung CC, Chiang J, Ciprini S, Claus R, Cognard I, Cohen-Tanugi J, Conrad J, De Angelis A, De Palma F, Dormody M, Do Couto E Silva E, Drell PS, Dubois R, Dumora D, Farnier C, Favuzzi C, Frailis M, Freire PCC, Fukazawa Y, Funk S, Fusco P, Gargano F, Gehrels N, Germani S, Giebels B, Giglietto N, Giordano F, Glanzman T, Godfrey G, Grenier IA, Grondin MH, Grove JE, Guillemot L, Guiriec S, Halpern J, Hanabata Y, Harding AK, Hayashida M, Hays E, Hobbs G, 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, Kocian ML, Kramer M, Kuehn F, Kuss MW, Lande J, Latronico L, Lemoine-Goumard M, Longo F, Loparco F, Lott B, Lovellette MN, Lubrano P, Lyne AG, Makeev A, Manchester RN, Marelli M, Mazziotta MN, Mcenery JE, Meurer C, Michelson PF, Mitthumsiri W, Mizuno T, Moiseev AA, Monte C, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nolan PL, Norris JP, Noutsos A, Nuss E, Ohsugi T, Omodei N, Orlando E, Ormes JF, Ozaki M, Paneque D, Panetta JH, Parent D, Pepe M, Pesce-Rollins M, Piron F, Porter TA, Raino S, Rando R, Ransom SM, Razzano M, Reimer A, Reimer O, Reposeur T, Rochester LS, Rodriguez AY, Romani RW, Roth M, Ryde F, Sadrozinski HFW, Sanchez D, Sander A, Parkinson PMS, Scargle JD, Sgro C, Siskind EJ, Smith DA, Smith PD, Spandre G, Spinelli P, Stappers BW, Strickman MS, Suson DJ, Tajima H, Takahashi HH, Tanaka T, Thayer JB, Thayer JG, Theureau G, Thompson DJ, Thorsett SE, Tibaldo L, Torres DF, Tosti G, Uchiyama Y, Usher TL, Van Etten A, Vilchez N, Vitale V, Waite AP, Wang P, Wang N, Watters K, Weltevrede P, Winer BL, Wood KS, Ylinen T, Ziegler M (2009)

Publication Type: Journal article

Publication year: 2009

Journal

Book Volume: 706

Pages Range: 1331-1340

Journal Issue: 2

DOI: 10.1088/0004-637X/706/2/1331

Abstract

We report the detection of gamma-ray pulsations (>= 0.1GeV) from PSR J2229+ 6114 and PSR J1048-5832, the latter having been detected as a low-significance pulsar by EGRET. Data in the gamma-ray band were acquired by the Large Area Telescope (LAT) aboard the Fermi Gamma-ray Space Telescope, while the radio rotational ephemerides used to fold the gamma-ray light curves were obtained using the Green Bank Telescope, the Lovell telescope at Jodrell Bank, and the Parkes Telescope. The two young radio pulsars, located within the error circles of the previously unidentified EGRET sources 3EG J1048-5840 and 3EG J2227+6122, present spin-down characteristics similar to the Vela pulsar. PSR J1048-5832 shows two sharp peaks at phases 0.15 +/- 0.01 and 0.57 +/- 0.01 relative to the radio pulse confirming the EGRET light curve, while PSR J2229+ 6114 presents a very broad peak at phase 0.49 +/- 0.01. The gamma-ray spectra above 0.1 GeV of both pulsars are fit with power laws having exponential cutoffs near 3 GeV, leading to integral photon fluxes of (2.19 +/- 0.22 +/- 0.32) x 10(-7) cm(-2) s(-1) for PSR J1048-5832 and (3.77 +/- 0.22 +/- 0.44) x 10(-7) cm(-2) s(-1) for PSR J2229+6114. The first uncertainty is statistical and the second is systematic. PSR J1048-5832 is one of the two LAT sources whichwere entangled together as 3EG J1048-5840. These detections add to the growing number of young gamma-ray pulsars that make up the dominant population of GeV gamma-ray sources in the Galactic plane.

Authors with CRIS profile

Involved external institutions

U.S. Naval Research Laboratory United States (USA) (US) Stanford University United States (USA) (US) University of California Santa Cruz United States (USA) (US) Stockholm University / Stockholms universitet Sweden (SE) University of Paris 7 - Denis Diderot / Université Paris VII Denis Diderot France (FR) Rice 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) Politecnico di Bari Italy (IT) Columbia University United States (USA) (US) National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF) Italy (IT) National Center for Scientific Research / Centre national de la recherche scientifique (CNRS) France (FR) University of Montpellier / Université Montpellier France (FR) AlbaNova University Centre / Kungliga Tekniska Högskolan AlbaNova Universitetscentrum Sweden (SE) University of Udine / Università degli Studi di Udine Italy (IT) Institut national de physique nucléaire et de physique des particules (IN2P3) France (FR) Hiroshima University Japan (JP) Arecibo Observatory United States (USA) (US) University of Maryland United States (USA) (US) University of Alabama in Huntsville (UAH) United States (USA) (US) Commonwealth Scientific and Industrial Research Organisation (CSIRO) Australia (AU) Tokyo Institute of Technology Japan (JP) University of Washington United States (USA) (US) Université Toulouse III - Paul Sabatier France (FR) University of Manchester United Kingdom (GB) National Aeronautics and Space Administration (NASA) United States (USA) (US) University of Denver United States (USA) (US) Max-Planck-Institut für extraterrestrische Physik (MPE) / Max Planck Institute for Extraterrestrial Physics Germany (DE) Japan Aerospace eXploration Agency (JAXA) Japan (JP) National Radio Astronomy Observatory (NRAO) United States (USA) (US) Spanish National Research Council / Consejo Superior de Investigaciones Científicas (CSIC) Spain (ES) NYCB Real-Time Computing, Inc. United States (USA) (US) Purdue University Northwest / Purdue University Calumet United States (USA) (US) Chinese Academy of Sciences (CAS) / 中国科学院 China (CN)

How to cite

APA:

Abdo, A.A., Ackermann, M., Ajello, M., Atwood, W.B., Axelsson, M., Baldini, L.,... Ziegler, M. (2009). FERMI LARGE AREA TELESCOPE DETECTION OF PULSED gamma-RAYS FROM THE VELA-LIKE PULSARS PSR J1048-5832 AND PSR J2229+6114. Astrophysical Journal, 706(2), 1331-1340. https://dx.doi.org/10.1088/0004-637X/706/2/1331

MLA:

Abdo, A. A., et al. "FERMI LARGE AREA TELESCOPE DETECTION OF PULSED gamma-RAYS FROM THE VELA-LIKE PULSARS PSR J1048-5832 AND PSR J2229+6114." Astrophysical Journal 706.2 (2009): 1331-1340.

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