FERMI LARGE AREA TELESCOPE OBSERVATIONS OF THE VELA-X PULSAR WIND NEBULA
FERMI LARGE AREA TELESCOPE OBSERVATIONS OF THE VELA-X PULSAR WIND NEBULA
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DOI：
10.1088/0004-637x/713/1/146
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发表时间：
2010-02
期刊：
影响因子：
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通讯作者：
A. Abdo;M. Ackermann;M. Ajello;A. Allafort;L. Baldini;J. Ballet;G. Barbiellini;D. Bastieri;K. Bechtol;R. Bellazzini;B. Berenji;R. Blandford;E. Bloom;E. Bonamente;A. Borgland;A. Bouvier;J. Bregeon;A. Brez;M. Brigida;P. Bruel;T. Burnett;S. Buson;G. Caliandro;R. Cameron;P. Caraveo;S. Carrigan;J. Casandjian;C. Cecchi;O. Celik;A. Chekhtman;Charles C. Chung;J. Chiang;S. Ciprini;R. Claus;J. Cohen-Tanugi;J. Conrad;A. Angelis;F. Palma;M. Dormody;E. Silva;P. Drell;R. Dubois;D. Dumora;C. Farnier;C. Favuzzi;S. Fegan;W. Focke;P. Fortin;M. Frailis;Y. Fukazawa;S. Funk;P. Fusco;F. Gargano;N. Gehrels;S. Germani;G. Giavitto;N. Giglietto;F. Giordano;T. Glanzman;G. Godfrey;I. Grenier;M. Grondin;J. Grove;L. Guillemot;S. Guiriec;A. Harding;M. Hayashida;E. Hays;D. Horan;R. Hughes;M. Jackson;G. Jóhannesson;A. Johnson;T. Johnson;W. Johnson;S. Johnston;T. Kamae;H. Katagiri;J. Kataoka;N. Kawai;M. Kerr;J. Knödlseder;M. Kuss;J. Lande;L. Latronico;S. Lee;M. Lemoine-Goumard;M. Garde;F. Longo;F. Loparco;B. Lott;M. Lovellette;P. Lubrano;A. Makeev;M. Marelli;M. Mazziotta;J. Mcenery;C. Meurer;P. Michelson;W. Mitthumsiri;T. Mizuno;A. Moiseev;C. Monte;M. Monzani;A. Morselli;I. Moskalenko;S. Murgia;T. Nakamori;P. Nolan;J. Norris;A. Noutsos;E. Nuss;T. Ohsugi;N. Omodei;E. Orlando;J. Ormes;M. Ozaki;D. Paneque;J. Panetta;D. Parent;V. Pelassa;M. Pepe;M. Pesce-Rollins;M. Pierbattista;F. Piron;T. Porter;S. Rainò;R. Rando;P. Ray;N. Rea;A. Reimer;O. Reimer;T. Reposeur;S. Ritz;A. Rodríguez;R. Romani;M. Roth;F. Ryde;H. Sadrozinski;D. Sanchez;A. Sander;P. Parkinson;J. Scargle;C. Sgro’;E. Siskind;D. Smith;P. Smith;G. Spandre;P. Spinelli;M. Strickman;D. Suson;H. Tajima;H. Takahashi;Tadayuki Takahashi;Takaaki Tanaka;J. Thayer;J. Thayer;D. Thompson;L. Tibaldo;D. Torres;G. Tosti;A. Tramacere;Y. Uchiyama;T. Usher;A. V. Etten;V. Vasileiou;C. Venter;N. Vilchez;V. Vitale;A. Waite;Pengfei Wang;P. Weltevrede;B. Winer;K. Wood;T. Ylinen;M. Ziegler
中科院分区：
文献类型：
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作者：
A. Abdo;M. Ackermann;M. Ajello;A. Allafort;L. Baldini;J. Ballet;G. Barbiellini;D. Bastieri;K. Bechtol;R. Bellazzini;B. Berenji;R. Blandford;E. Bloom;E. Bonamente;A. Borgland;A. Bouvier;J. Bregeon;A. Brez;M. Brigida;P. Bruel;T. Burnett;S. Buson;G. Caliandro;R. Cameron;P. Caraveo;S. Carrigan;J. Casandjian;C. Cecchi;O. Celik;A. Chekhtman;Charles C. Chung;J. Chiang;S. Ciprini;R. Claus;J. Cohen-Tanugi;J. Conrad;A. Angelis;F. Palma;M. Dormody;E. Silva;P. Drell;R. Dubois;D. Dumora;C. Farnier;C. Favuzzi;S. Fegan;W. Focke;P. Fortin;M. Frailis;Y. Fukazawa;S. Funk;P. Fusco;F. Gargano;N. Gehrels;S. Germani;G. Giavitto;N. Giglietto;F. Giordano;T. Glanzman;G. Godfrey;I. Grenier;M. Grondin;J. Grove;L. Guillemot;S. Guiriec;A. Harding;M. Hayashida;E. Hays;D. Horan;R. Hughes;M. Jackson;G. Jóhannesson;A. Johnson;T. Johnson;W. Johnson;S. Johnston;T. Kamae;H. Katagiri;J. Kataoka;N. Kawai;M. Kerr;J. Knödlseder;M. Kuss;J. Lande;L. Latronico;S. Lee;M. Lemoine-Goumard;M. Garde;F. Longo;F. Loparco;B. Lott;M. Lovellette;P. Lubrano;A. Makeev;M. Marelli;M. Mazziotta;J. Mcenery;C. Meurer;P. Michelson;W. Mitthumsiri;T. Mizuno;A. Moiseev;C. Monte;M. Monzani;A. Morselli;I. Moskalenko;S. Murgia;T. Nakamori;P. Nolan;J. Norris;A. Noutsos;E. Nuss;T. Ohsugi;N. Omodei;E. Orlando;J. Ormes;M. Ozaki;D. Paneque;J. Panetta;D. Parent;V. Pelassa;M. Pepe;M. Pesce-Rollins;M. Pierbattista;F. Piron;T. Porter;S. Rainò;R. Rando;P. Ray;N. Rea;A. Reimer;O. Reimer;T. Reposeur;S. Ritz;A. Rodríguez;R. Romani;M. Roth;F. Ryde;H. Sadrozinski;D. Sanchez;A. Sander;P. Parkinson;J. Scargle;C. Sgro’;E. Siskind;D. Smith;P. Smith;G. Spandre;P. Spinelli;M. Strickman;D. Suson;H. Tajima;H. Takahashi;Tadayuki Takahashi;Takaaki Tanaka;J. Thayer;J. Thayer;D. Thompson;L. Tibaldo;D. Torres;G. Tosti;A. Tramacere;Y. Uchiyama;T. Usher;A. V. Etten;V. Vasileiou;C. Venter;N. Vilchez;V. Vitale;A. Waite;Pengfei Wang;P. Weltevrede;B. Winer;K. Wood;T. Ylinen;M. Ziegler
我们使用费米大面望远镜 (LAT) 11 个月的勘测数据报告了 Vela 脉冲星 PSR B0833−45 的离脉冲窗口中的伽马射线观测结果。这颗脉冲星位于直径 8° 的船帆座超新星遗迹中，其中包含在射电、X 射线和伽马射线波段检测到的多个非热发射区域。 LAT 检测到的伽马射线发射位于这些区域之一，即脉冲星以南 2° × 3° 的区域，称为 Vela-X。对于假设的径向对称均匀圆盘，LAT 通量在空间上显着扩展，最佳拟合半径为 0.°88 ± 0.°12。该源的 200 MeV 至 20 GeV LAT 光谱可以通过幂律很好地描述，光谱指数为 2.41 ± 0.09 ± 0.15，积分通量高于 100 MeV 为 (4.73 ± 0.63 ± 1.32) × 10−7 cm−2 s−1。第一个误差代表拟合参数的统计误差，第二个误差代表系统不确定性。详细的形态和光谱分析对脉冲星风星云系统的能量和磁场给出了强有力的限制，并有利于具有两个不同电子群体的场景。
We report on gamma-ray observations in the off-pulse window of the Vela pulsar PSR B0833−45 using 11 months of survey data from the Fermi Large Area Telescope (LAT). This pulsar is located in the 8° diameter Vela supernova remnant, which contains several regions of non-thermal emission detected in the radio, X-ray, and gamma-ray bands. The gamma-ray emission detected by the LAT lies within one of these regions, the 2° × 3° area south of the pulsar known as Vela-X. The LAT flux is significantly spatially extended with a best-fit radius of 0.°88 ± 0.°12 for an assumed radially symmetric uniform disk. The 200 MeV to 20 GeV LAT spectrum of this source is well described by a power law with a spectral index of 2.41 ± 0.09 ± 0.15 and integral flux above 100 MeV of (4.73 ± 0.63 ± 1.32) × 10−7 cm−2 s−1. The first errors represent the statistical error on the fit parameters, while the second ones are the systematic uncertainties. Detailed morphological and spectral analyses give strong constraints on the energetics and magnetic field of the pulsar wind nebula system and favor a scenario with two distinct electron populations.