SEARCH FOR GAMMA-RAY EMISSION FROM MAGNETARS WITH THE FERMI LARGE AREA TELESCOPE

Abdo, Aa; Ackermann, M; Ajello, M; Allafort, A; Baldini, Luca; Ballet, J; Barbiellini, G; Baring, Mg; Bastieri, D; Bellazzini, R; Blandford, Rd; Bloom, Ed; Bonamente, E; Borgland, Aw; Bouvier, A; Bregeon, J; Brigida, M; Bruel, P; Burnett, Th; Caliandro, Ga; Cameron, Ra; Caraveo, Pa; Cecchi, C; Celik, O; Chaty, S; Chekhtman, A; Cheung, Cc; Chiang, J; Ciprini, S; Claus, R; Conrad, J; den Hartog PR,; Dermer, Cd; de Angelis, A; de Palma, F; Dib, R; Dormody, M; Silva, Ede; Drell, Ps; Dubois, R; Dumora, D; Enoto, T; Favuzzi, C; Frailis, M; Fusco, P; Gargano, F; Gehrels, N; Giglietto, N; Giommi, P; Giordano, F; Giroletti, M; Glanzman, T; Godfrey, G; Grenier, Ia; Grondin, Mh; Guiriec, S; Hadasch, D; Hanabata, Y; Harding, Ak; Hays, E; Israel, Gl; Johannesson, G; Johnson, As; Kaspi, Vm; Katagiri, H; Kataoka, J; Knodlseder, J; Kuss, M; Lande, J; Lee, Sh; Lemoine Goumard, M; Longo, F; Loparco, F; Lovellette, Mn; Lubrano, P; Makeev, A; Marelli, M; Mazziotta, Mn; McEnery, Je; Mehault, J; Michelson, Pf; Mizuno, T; Moiseev, Aa; Monte, C; Monzani, Me; Morselli, A; Moskalenko, Iv; Murgia, S; Naumann Godo, M; Nolan, Pl; Nuss, E; Ohsugi, T; Okumura, A; Omodei, N; Orlando, E; Ormes, Jf; Ozaki, M; Paneque, D; Parent, D; Pepe, M; Pesce Rollins, M; Piron, F; Porter, Ta; Raino, S; Rando, R; Razzano, Massimiliano; Rea, N; Reimer, A; Reimer, O; Reposeur, T; Ritz, S; Sadrozinski, Hfw; Parkinson, Pms; Sgro, C; Siskind, Ej; Smith, Da; Spandre, G; Spinelli, P; Strickman, Ms; Takahashi, H; Tanaka, T; Thayer, Jb; Thompson, Dj; Tibaldo, L; Torres, Df; Tosti, G; Tramacere, A; Troja, E; Uchiyama, Y; Usher, Tl; Vandenbroucke, J; Vasileiou, V; Vianello, G; Vitale, V; Waite, Ap; Winer, Bl; Wood, Ks; Yang, Z; Ziegler, M.

doi:10.1088/2041-8205/725/1/L73

We report on the search for 0.1-10 GeV emission from magnetars in 17 months of Fermi Large Area Telescope (LAT) observations. No significant evidence for gamma-ray emission from any of the currently known magnetars is found. The most stringent upper limits to date on their persistent emission in the Fermi energy range are estimated between ~10–12and10–10 erg s–1 cm–2, depending on the source. We also searched for gamma-ray pulsations and possible outbursts, also with no significant detection. The upper limits derived support the presence of a cutoff at an energy below a few MeV in the persistent emission of magnetars. They also show the likely need for a revision of current models of outer-gap emission from strongly magnetized pulsars, which, in some realizations, predict detectable GeV emission from magnetars at flux levels exceeding the upper limits identified here using the Fermi-LAT observations.

Autori interni:	Abdo AA Ackermann M Ajello M Allafort A BALDINI, LUCA Ballet J Barbiellini G Baring MG Bastieri D Bellazzini R Blandford RD Bloom ED Bonamente E Borgland AW Bouvier A Bregeon J Brigida M Bruel P Burnett TH Caliandro GA Cameron RA Caraveo PA Cecchi C Celik O Chaty S Chekhtman A Cheung CC Chiang J Ciprini S Claus R Conrad J den Hartog PR Dermer CD de Angelis A de Palma F Dib R Dormody M Silva EDE Drell PS Dubois R Dumora D Enoto T Favuzzi C Frailis M Fusco P Gargano F Gehrels N Giglietto N Giommi P Giordano F Giroletti M Glanzman T Godfrey G Grenier IA Grondin MH Guiriec S Hadasch D Hanabata Y Harding AK Hays E Israel GL Johannesson G Johnson AS Kaspi VM Katagiri H Kataoka J Knodlseder J Kuss M Lande J Lee SH Lemoine Goumard M Longo F Loparco F Lovellette MN Lubrano P Makeev A Marelli M Mazziotta MN McEnery JE Mehault J Michelson PF Mizuno T Moiseev AA Monte C Monzani ME Morselli A Moskalenko IV Murgia S Naumann Godo M Nolan PL Nuss E Ohsugi T Okumura A Omodei N Orlando E Ormes JF Ozaki M Paneque D Parent D Pepe M Pesce Rollins M Piron F Porter TA Raino S Rando R RAZZANO, MASSIMILIANO Rea N Reimer A Reimer O Reposeur T Ritz S Sadrozinski HFW Parkinson PMS Sgro C Siskind EJ Smith DA Spandre G Spinelli P Strickman MS Takahashi H Tanaka T Thayer JB Thompson DJ Tibaldo L Torres DF Tosti G Tramacere A Troja E Uchiyama Y Usher TL Vandenbroucke J Vasileiou V Vianello G Vitale V Waite AP Winer BL Wood KS Yang Z Ziegler M. mostra contributor esterni nascondi contributor esterni
Autori:	Abdo AA; Ackermann M; Ajello M; Allafort A; Baldini L; Ballet J; Barbiellini G; Baring MG; Bastieri D; Bellazzini R; Blandford RD; Bloom ED; Bonamente E; Borgland AW; Bouvier A; Bregeon J; Brigida M; Bruel P; Burnett TH; Caliandro GA; Cameron RA; Caraveo PA; Cecchi C; Celik O; Chaty S; Chekhtman A; Cheung CC; Chiang J; Ciprini S; Claus R; Conrad J; den Hartog PR; Dermer CD; de Angelis A; de Palma F; Dib R; Dormody M; Silva EDE; Drell PS; Dubois R; Dumora D; Enoto T; Favuzzi C; Frailis M; Fusco P; Gargano F; Gehrels N; Giglietto N; Giommi P; Giordano F; Giroletti M; Glanzman T; Godfrey G; Grenier IA; Grondin MH; Guiriec S; Hadasch D; Hanabata Y; Harding AK; Hays E; Israel GL; Johannesson G; Johnson AS; Kaspi VM; Katagiri H; Kataoka J; Knodlseder J; Kuss M; Lande J; Lee SH; Lemoine-Goumard M; Longo F; Loparco F; Lovellette MN; Lubrano P; Makeev A; Marelli M; Mazziotta MN; McEnery JE; Mehault J; Michelson PF; Mizuno T; Moiseev AA; Monte C; Monzani ME; Morselli A; Moskalenko IV; Murgia S; Naumann-Godo M; Nolan PL; Nuss E; Ohsugi T; Okumura A; Omodei N; Orlando E; Ormes JF; Ozaki M; Paneque D; Parent D; Pepe M; Pesce-Rollins M; Piron F; Porter TA; Raino S; Rando R; Razzano M; Rea N; Reimer A; Reimer O; Reposeur T; Ritz S; Sadrozinski HFW; Parkinson PMS; Sgro C; Siskind EJ; Smith DA; Spandre G; Spinelli P; Strickman MS; Takahashi H; Tanaka T; Thayer JB; Thompson DJ; Tibaldo L; Torres DF; Tosti G; Tramacere A; Troja E; Uchiyama Y; Usher TL; Vandenbroucke J; Vasileiou V; Vianello G; Vitale V; Waite AP; Winer BL; Wood KS; Yang Z; Ziegler M
Titolo:	SEARCH FOR GAMMA-RAY EMISSION FROM MAGNETARS WITH THE FERMI LARGE AREA TELESCOPE
Anno del prodotto:	2010
Digital Object Identifier (DOI):	10.1088/2041-8205/725/1/L73
Appare nelle tipologie:	1.1 Articolo in rivista

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