Fermi Detection of a Luminous Gamma-ray Pulsar in a Globular Cluster

P. C. C. Freire,A. A. Abdo,M. Ajello,A. Allafort,J. Ballet,G. Barbiellini,D. Bastieri,K. Bechtol,R. Bellazzini,R. D. Blandford,E. D. Bloom,E. Bonamente,A. W. Borgland,M. Brigida,P. Bruel,R. Buehler,S. Buson,G. A. Caliandro,R. A. Cameron,F. Camilo,P. A. Caraveo,C. Cecchi,O. Celik,E. Charles,A. Chekhtman,C. C. Cheung,J. Chiang,S. Ciprini,R. Claus,I. Cognard, J. Cohen-Tanugi,L. R. Cominsky,F. De Palma,C. D. Dermer,E. Do Couto E Silva,M. Dormody,P. S. Drell,R. Dubois,D. Dumora,C. M. Espinoza,C. Favuzzi,S. J. Fegan,E. C. Ferrara,W. B. Focke,P. Fortin,Y. Fukazawa,P. Fusco,F. Gargano,D. Gasparrini,N. Gehrels,S. Germani,N. Giglietto,F. Giordano,M. Giroletti,T. Glanzman,G. Godfrey,I. A. Grenier,M. -H. Grondin,J. E. Grove,L. Guillemot,S. Guiriec,D. Hadasch,A. K. Harding,G. Johannesson,A. S. Johnson,T. J. Johnson,S. Johnston,H. Katagiri,J. Kataoka,M. Keith,M. Kerr, J. Knoedlseder,M. Kramer,M. Kuss,J. Lande,L. Latronico,S. -H. Lee,M. Lemoine-Goumard,F. Longo,F. Loparco,M. N. Lovellette,P. Lubrano,A. G. Lyne,R. N. Manchester,M. Marelli,M. N. Mazziotta,J. E. Mcenery,P. F. Michelson,T. Mizuno,A. A. Moiseev,C. Monte,M. E. Monzani,A. Morselli,I. V. Moskalenko,S. Murgia,T. Nakamori,P. L. Nolan,J. P. Norris,E. Nuss,T. Ohsugi,A. Okumura,N. Omodei,E. Orlando,M. Ozaki,D. Paneque,D. Parent,M. Pesce-Rollins,M. Pierbattista,F. Piron,T. A. Porter,S. Raino,S. M. Ransom,P. S. Ray,A. Reimer,O. Reimer,T. Reposeur,S. Ritz,R. W. Romani,M. Roth,H. F. -W. Sadrozinski,P. M. Saz Parkinson,C. Sgro,R. Shannon,E. J. Siskind,D. A. Smith,P. D. Smith,P. Spinelli,B. W. Stappers,D. J. Suson,H. Takahashi,T. Tanaka,T. M. Tauris,J. B. Thayer,G. Theureau,D. J. Thompson,S. E. Thorsett,L. Tibaldo,D. F. Torres,G. Tosti,E. Troja,J. Vandenbroucke,A. Van Etten,V. Vasileiou,C. Venter,G. Vianello,N. Vilchez,V. Vitale,A. P. Waite,P. Wang,K. S. Wood,Z. Yang,M. Ziegler,S. Zimmer

Science（2011）

引用 96|浏览5

暂无评分

摘要

We report on the Fermi Large Area Telescope's detection of gamma-ray (>100 mega-electron volts) pulsations from pulsar J1823-3021A in the globular cluster NGC 6624 with high significance (similar to 7 sigma). Its gamma-ray luminosity, L-gamma = (8.4 +/- 1.6) x 10(34) ergs per second, is the highest observed for any millisecond pulsar (MSP) to date, and it accounts for most of the cluster emission. The nondetection of the cluster in the off-pulse phase implies that it contains <32 gamma-ray MSPs, not similar to 100 as previously estimated. The gamma-ray luminosity indicates that the unusually large rate of change of its period is caused by its intrinsic spin-down. This implies that J1823-3021A has the largest magnetic field and is the youngest MSP ever detected and that such anomalous objects might be forming at rates comparable to those of the more normal MSPs.

查看译文

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要