FERMI/LARGE AREA TELESCOPE DISCOVERY OF GAMMA-RAY EMISSION FROM THE FLAT-SPECTRUM RADIO QUASAR PKS 1454-354

Abdo AA, Ackermann M, Atwood WB, Axelsson M, Baldini L, Ballet J, Barbiellini G, Bastieri D, Baughman BM, Bechtol K, Bellazzini R, Berenji B, Blandford RD, Bloom ED, Bogaert G, Bonamente E, Borgland AW, Bregeon J, Brez A, Brigida M, Bruel P, Burnett TH, Caliandro GA, Cameron RA, Caraveo PA, Casandjian JM, Cavazzuti E, Cecchi C, Charles E, Chekhtman A, Cheung CC, Chiang J, Ciprini S, Claus R, Cohen-Tanugi J, Colafrancesco S, Conrad J, Costamante L, Cutini S, Dermer CD, De Angelis A, De Palma F, Digel SW, Do Couto E Silva E, Drell PS, Dubois R, Dumora D, Edmonds Y, Farnier C, Favuzzi C, Ferrara EC, Fleury P, Focke WB, Foschini L, Frailis M, Fuhrmann L, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Gehrels N, Germani S, Giebels B, Giglietto N, Giordano F, Giroletti M, Glanzman T, Godfrey G, Grenier IA, Grondin MH, Grove JE, Guillemot L, Guiriec S, Harding AK, Hartman RC, Hayashida M, Hays E, Healey SE, Hughes RE, Johannesson G, Johnson AS, Johnson RP, Johnson WN, Kadler M, Kamae T, Katagiri H, Kataoka J, Kawai N, Kerr M, Knoedlseder J, Kocian ML, Kuehn F, Kuss MW, Latronico L, Lee SH, Lemoine-Goumard M, Longo F, Loparco F, Lott B, Lovellette MN, Lubrano P, Madejski GM, Makeev A, Marelli M, Mazziotta MN, Mcenery JE, Mcglynn S, Meurer C, Michelson PF, Mitthumsiri W, Mizuno T, Moiseev AA, Monte C, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nolan PL, Nuss E, Ohno M, Ohsugi T, Ojha R, 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, Reyes LC, Ritz S, Rochester LS, Rodriguez AY, Romani RW, Roth M, Ryde F, Sadrozinski HFW, Sambruna R, Sanchez D, Sander A, Parkinson PMS, Sgro C, Shaw MS, 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, Tibaldo L, Tibolla O, Torres DF, Tosti G, Tramacere A, Usher TL, Vilchez N, Vitale V, Waite AP, Wang P, Winer BL, Wood KS, Ylinen T, Ziegler M, Edwards PG, Chester MM, Burrows DN, Hauser M, Wagner S (2009)

Publication Type: Journal article

Publication year: 2009

Journal

Book Volume: 697

Pages Range: 934-941

Journal Issue: 1

DOI: 10.1088/0004-637X/697/1/934

Abstract

We report the discovery by the Large Area Telescope (LAT) onboard the Fermi Gamma-Ray Space Telescope of high-energy gamma-ray (GeV) emission from the flat-spectrum radio quasar PKS 1454-354 (z = 1.424). On 2008 September 4, the source rose to a peak flux of (3.5 +/- 0.7) x 10(-6) ph cm(-2) s(-1) (E > 100 MeV) on a timescale of hours and then slowly dropped over the following 2 days. No significant spectral changes occurred during the flare. Fermi/LAT observations also showed that PKS 1454-354 is the most probable counterpart of the unidentified EGRET source 3EG J1500-3509. Multiwavelength measurements performed during the following days (7 September with Swift; 6-7 September with the ground-based optical telescope Automated Telescope for Optical Monitoring; 13 September with the Australia Telescope Compact Array) resulted in radio, optical, UV, and X-ray fluxes greater than archival data, confirming the activity of PKS 1454-354.

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) The Oskar Klein Centre Sweden (SE) National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN) Italy (IT) University of Paris 7 - Denis Diderot / Université Paris VII Denis Diderot France (FR) Ohio State University United States (USA) (US) École Polytechnique - Université Paris-Saclay France (FR) Politecnico di Bari Italy (IT) University of Washington United States (USA) (US) National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF) Italy (IT) Italian Space Agency / Agenzia Spaziale Italiana (ASI) Italy (IT) University of Montpellier / Université Montpellier France (FR) Hiroshima University Japan (JP) University of Maryland United States (USA) (US) INAF - Institute for Radio Astronomy of Bologna / Istituto di Radioastronomia di Bologna (IRA) Italy (IT) Centre d'Etudes Nucléaires de Bordeaux-Gradignan (CENBG) France (FR) National Aeronautics and Space Administration (NASA) United States (USA) (US) Waseda University / 早稲田大学 Japan (JP) Riken Institute of Physical and Chemical Research / 理研 Japan (JP) Université Toulouse III - Paul Sabatier France (FR) University of Udine / Università degli Studi di Udine Italy (IT) Max-Planck-Institut für Radioastronomie / Max Planck Institute for Radio Astronomy Germany (DE) University of Denver United States (USA) (US) Purdue University Northwest / Purdue University Calumet United States (USA) (US) Japan Aerospace eXploration Agency (JAXA) Japan (JP) United States Naval Observatory United States (USA) (US) Max-Planck-Institut für extraterrestrische Physik (MPE) / Max Planck Institute for Extraterrestrial Physics Germany (DE) University of Chicago 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) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics Germany (DE) Paul Wild Observatory Narrabri Australia (AU) Pennsylvania State University (Penn State) United States (USA) (US) Ruprecht-Karls-Universität Heidelberg Germany (DE)

How to cite

APA:

Abdo, A.A., Ackermann, M., Atwood, W.B., Axelsson, M., Baldini, L., Ballet, J.,... Wagner, S. (2009). FERMI/LARGE AREA TELESCOPE DISCOVERY OF GAMMA-RAY EMISSION FROM THE FLAT-SPECTRUM RADIO QUASAR PKS 1454-354. Astrophysical Journal, 697(1), 934-941. https://doi.org/10.1088/0004-637X/697/1/934

MLA:

Abdo, A. A., et al. "FERMI/LARGE AREA TELESCOPE DISCOVERY OF GAMMA-RAY EMISSION FROM THE FLAT-SPECTRUM RADIO QUASAR PKS 1454-354." Astrophysical Journal 697.1 (2009): 934-941.

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