DISCOVERY OF PULSED gamma-RAYS FROM PSR J0034-0534 WITH THE FERMI LARGE AREA TELESCOPE: A CASE FOR CO-LOCATED RADIO AND gamma-RAY EMISSION REGIONS

Abdo, Aa; Ackermann, M; Ajello, M; Allafort, A; Baldini, Luca; 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, C; 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, N; 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, Massimiliano; 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.

doi:10.1088/0004-637X/712/2/957

Millisecond pulsars (MSPs) have been firmly established as a class of γ-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 γ-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 γ-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 γ-ray peaks strongly suggests that the radio and γ-ray emission regions are co-located and both are the result of caustic formation.

Autori interni:	Abdo AA Ackermann M Ajello M Allafort A BALDINI, LUCA 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 C 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 N 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, MASSIMILIANO 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. mostra contributor esterni nascondi contributor esterni
Autori:	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 C; 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 N; 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
Titolo:	DISCOVERY OF PULSED gamma-RAYS FROM PSR J0034-0534 WITH THE FERMI LARGE AREA TELESCOPE: A CASE FOR CO-LOCATED RADIO AND gamma-RAY EMISSION REGIONS
Anno del prodotto:	2010
Digital Object Identifier (DOI):	10.1088/0004-637X/712/2/957
Appare nelle tipologie:	1.1 Articolo in rivista

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