Discovery of pulsed γ-rays from PSR J0034-0534 with the fermi large area telescope: A case for co-located radio and γ-ray emission regions
| Title: | Discovery of pulsed γ-rays from PSR J0034-0534 with the fermi large area telescope: A case for co-located radio and γ-ray emission regions |
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| Authors: | Abdo AA; Ackermann M; Ajello M; Allafort A; Baldini L; Ballet J; Barbiellini G; Bastieri D; Bechtol K; Bellazzini R; Berenji B; Blandford RD; Bloom ED; Bonamente E; Borgland AW; Bouvier A; Bregeon J; Brez A; Brigida M; Bruel P; Burnett TH; Buson S; Caliandro GA; Cameron RA; Camilo F; Caraveo PA; Carrigan S; Casandjian JM; Cecchi C; Celik O; Chekhtman A; Cheung CC; Chiang J; Ciprini S; Claus R; Cognard I; Cohen Tanugi J; Conrad J; Corbet R; DeCesar ME; Dermer CD; Desvignes G; de Angelis A; de Palma F; Digel SW; Dormody M; Silva EDE; Drell PS; Dubois R; Dumora D; Espinoza C; Farnier C; FAVUZZI, Cecilia; Fegan SJ; Focke WB; Frailis M; Freire PCC; Fukazawa Y; Funk S; Fusco P; Gargano F; Gasparrini D; Gehrels N; Germani S; Giavitto G; GIGLIETTO, Nicola; Giordano F; Glanzman T; Godfrey G; Grenier IA; Grondin MH; Grove JE; Guillemot L; Guiriec S; Hadasch D; Harding AK; Hays E; Hobbs G; Horan D; Hughes RE; Johannesson G; Johnson AS; Johnson TJ; Johnson WN; Johnston S; Kamae T; Katagiri H; Kataoka J; Kawai N; Kerr M; Knodlseder J; Kramer M; Kuss M; Lande J; Latronico L; Lemoine Goumard M; Garde ML; Longo F; Loparco F; Lott B; Lovellette MN; Lubrano P; Lyne AG; Makeev A; Manchester RN; Marelli M; Mazziotta MN; McConville W; 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; Norris JP; Noutsos A; Nuss E; Ohsugi T; Omodei N; Orlando E; Ormes JF; Ozaki M; Paneque D; Panetta JH; Parent D; Pelassa V; Pepe M; Pesce Rollins M; Pierbattista M; Piron F; Porter TA; Raino S; Rando R; Ransom SM; Razzano M; Reimer A; Reimer O; Reposeur T; Ripken J; Ritz S; Rochester LS; Rodriguez AY; Romani RW; Roth M; Ryde F; Sadrozinski HFW; Sander A; Parkinson PMS; Scargle JD; Sgro C; Siskind EJ; Smith DA; Smith PD; Spandre G; Spinelli P; Stappers BW; Starck JL; Strickman MS; Suson DJ; Takahashi H; Tanaka T; Thayer JB; Thayer JG; Theureau G; Thompson DJ; Thorsett SE; Tibaldo L; Torres DF; Tosti G; Tramacere A; Usher TL; Van Etten A; Vasileiou V; Venter C; Vilchez N; Vitale V; Waite AP; Wallace E; Wang P; Weltevrede P; Winer BL; Wood KS; Ylinen T; Ziegler M. |
| Contributors: | Abdo, Aa; Ackermann, M; Ajello, M; Allafort, A; Baldini, L; Ballet, J; Barbiellini, G; Bastieri, D; Bechtol, K; Bellazzini, R; Berenji, B; Blandford, Rd; Bloom, Ed; Bonamente, E; Borgland, Aw; Bouvier, A; Bregeon, J; Brez, A; Brigida, M; Bruel, P; Burnett, Th; Buson, S; Caliandro, Ga; Cameron, Ra; Camilo, F; Caraveo, Pa; Carrigan, S; Casandjian, Jm; Cecchi, C; Celik, O; Chekhtman, A; Cheung, Cc; Chiang, J; Ciprini, S; Claus, R; Cognard, I; Cohen Tanugi, J; Conrad, J; Corbet, R; Decesar, Me; Dermer, Cd; Desvignes, G; de Angelis, A; de Palma, F; Digel, Sw; Dormody, M; Silva, Ede; Drell, P; Dubois, R; Dumora, D; Espinoza, C; Farnier, C; Favuzzi, Cecilia; Fegan, Sj; Focke, Wb; Frailis, M; Freire, Pcc; Fukazawa, Y; Funk, S; Fusco, P; Gargano, F; Gasparrini, D; Gehrels, N; Germani, S; Giavitto, G; Giglietto, Nicola; Giordano, F; Glanzman, T; Godfrey, G; Grenier, Ia; Grondin, Mh; Grove, Je; Guillemot, L; Guiriec, S; Hadasch, D; Harding, Ak; Hays, E; Hobbs, G; Horan, D; Hughes, Re; Johannesson, G; Johnson, A; Johnson, Tj; Johnson, Wn; Johnston, S; Kamae, T; Katagiri, H; Kataoka, J; Kawai, N; Kerr, M; Knodlseder, J; Kramer, M; Kuss, M; Lande, J; Latronico, L; Lemoine Goumard, M; Garde, Ml; Longo, F; Loparco, F; Lott, B |
| Publication Year: | 2010 |
| Collection: | Politecnico di Bari: Iris POLIBA (Catalogo dei prodotti della Ricerca) |
| Subject Terms: | Gamma rays: general; pulsars: general; pulsars: individual (PSR J0034-0534) |
| Description: | Millisecond pulsars (MSPs) have been firmly established as a class of gamma-ray emitters via the detection of pulsations above 0.1 GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using 13 months of LAT data, significant gamma-ray pulsations at the radio period have been detected from the MSP PSR J0034-0534, making it the ninth clear MSP detection by the LAT. The gamma-ray light curve shows two peaks separated by 0.274 +/- 0.015 in phase which are very nearly aligned with the radio peaks, a phenomenon seen only in the Crab pulsar until now. The >= 0.1 GeV spectrum of this pulsar is well fit by an exponentially cutoff power law with a cutoff energy of 1.8 +/- 0.6 +/- 0.1 GeV and a photon index of 1.5 +/- 0.2 +/- 0.1, first errors are statistical and second are systematic. The near-alignment of the radio and gamma-ray peaks strongly suggests that the radio and gamma-ray emission regions are co-located and both are the result of caustic formation. |
| Document Type: | article in journal/newspaper |
| File Description: | ELETTRONICO |
| Language: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000275594600016; volume:712; issue:2; firstpage:957; lastpage:963; numberofpages:7; journal:THE ASTROPHYSICAL JOURNAL; https://hdl.handle.net/11589/181 |
| DOI: | 10.1088/0004-637X/712/2/957 |
| Availability: | https://hdl.handle.net/11589/181; https://doi.org/10.1088/0004-637X/712/2/957 |
| Rights: | info:eu-repo/semantics/openAccess ; license:Tutti i diritti riservati |
| Accession Number: | edsbas.520E1397 |
| Database: | BASE |