HIGH-RESOLUTION TIMING OBSERVATIONS OF SPIN-POWERED PULSARS WITH THE AGILE GAMMA-RAY TELESCOPE

被引：45

作者：

Pellizzoni, A. ^{[1
]}

Pilia, M. ^{[1
,2
]}

Possenti, A. ^{[2
]}

Fornari, F. ^{[1
]}

Caraveo, P. ^{[1
]}

Del Monte, E. ^{[3
]}

Mereghetti, S. ^{[1
]}

Tavani, M. ^{[3
,4
]}

Argan, A. ^{[3
]}

Trois, A. ^{[3
]}

Burgay, M. ^{[2
]}

Chen, A. ^{[1
,5
]}

Cognard, I. ^{[6
]}

Costa, E. ^{[3
]}

D'Amico, N. ^{[2
,7
]}

Esposito, P. ^{[1
,8
,9
]}

Evangelista, Y. ^{[3
]}

Feroci, M. ^{[3
]}

Fuschino, F. ^{[10
]}

Giuliani, A. ^{[1
]}

Halpern, J. ^{[11
]}

Hobbs, G. ^{[12
]}

Hotan, A. ^{[13
]}

Johnston, S. ^{[12
]}

Kramer, M. ^{[14
]}

Longo, F. ^{[15
,16
]}

Manchester, R. N. ^{[12
]}

Marisaldi, M. ^{[10
]}

Palfreyman, J. ^{[17
]}

Weltevrede, P. ^{[12
]}

Barbiellini, G. ^{[15
,16
]}

Boffelli, F. ^{[8
,9
]}

Bulgarelli, A. ^{[10
]}

Cattaneo, P. W. ^{[8
]}

Cocco, V. ^{[3
]}

D'Ammando, F. ^{[3
,4
]}

De Paris, G. ^{[3
]}

Di Cocco, G. ^{[3
]}

Donnarumma, I. ^{[3
]}

Fiorini, M. ^{[1
]}

Froysland, T. ^{[4
,5
]}

Galli, M. ^{[18
]}

Gianotti, F. ^{[10
]}

Harding, A. ^{[19
]}

Labanti, C. ^{[10
]}

Lapshov, I. ^{[3
]}

Lazzarotto, F. ^{[3
]}

Lipari, P. ^{[20
]}

Mauri, F. ^{[8
]}

Morselli, A. ^{[21
]}

机构：

[1] INAF IASF Milano, I-20133 Milan, Italy

[2] Osservatorio Astron Cagliari, INAF, I-09012 Capoterra, Italy

[3] INAF IASF Roma, I-00133 Rome, Italy

[4] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

[5] CIFS Torino, I-10133 Turin, Italy

[6] CNRS, Lab Phys & Chim Environm, F-45071 Orleans, France

[7] Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, Italy

[8] Ist Nazl Fis Nucl, I-27100 Pavia, Italy

[9] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

[10] INAF IASF Bologna, I-40129 Bologna, Italy

[11] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[12] CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia

[13] Curtin Univ Technol, Perth, WA 6000, Australia

[14] Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England

[15] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy

[16] Ist Nazl Fis Nucl, I-34127 Trieste, Italy

[17] Univ Tasmania, Sch Math & Phys, Hobart, Tas 7001, Australia

[18] ENEA Bologna, I-40059 Medicina, BO, Italy

[19] NASA, Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 USA

[20] INFN Roma La Sapienza, I-00185 Rome, Italy

[21] INFN Roma Tor Vergata, I-00133 Rome, Italy

[22] Univ Insubria, Dipartimento Fis, I-22100 Como, Italy

[23] ENEA Roma, I-00044 Frascati, Roma, Italy

[24] ASI ASDC, I-00044 Frascati, Roma, Italy

[25] ASI, I-00198 Rome, Italy

来源：

ASTROPHYSICAL JOURNAL | 2009年 / 691卷 / 02期

关键词：

gamma rays: observations; pulsars: general; pulsars:; individual; (Vela; Crab; Geminga; PSR B 1706-44); stars: neutron; HIGH-ENERGY; X-RAY; VELA PULSAR; INTERNAL TEMPERATURE; EGRET OBSERVATIONS; NEUTRON-STARS; VORTEX CREEP; LIGHT CURVES; CRAB PULSAR; SLOT GAPS;

D O I：

10.1088/0004-637X/691/2/1618

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Astro-rivelatore Gamma ad Immagini LEggero (AGILE) is a small gamma-ray astronomy satellite mission of the Italian Space Agency dedicated to high-energy astrophysics launched in 2007 April. Its similar to 1 mu s absolute time tagging capability coupled with a good sensitivity in the 30MeV-30 GeV range, with simultaneous X-ray monitoring in the 18-60 keV band, makes it perfectly suited for the study of gamma-ray pulsars following up on the Compton Gamma RayObservatory/EGRET heritage. In this paper, we present the first AGILE timing results on the known gamma-ray pulsars Vela, Crab, Geminga, and B1706-44. The data were collected from 2007 July to 2008 April, exploiting the mission Science Verification Phase, the Instrument Timing Calibration, and the early Observing Pointing Program. Thanks to its large field of view, AGILE collected a large number of gamma-ray photons from these pulsars (similar to 10,000 pulsed counts for Vela) in only few months of observations. The coupling of AGILE timing capabilities, simultaneous radio/X-ray monitoring, and new tools aimed at precise photon phasing, also exploiting timing noise correction, unveiled new interesting features at the submillisecond level in the pulsars' high-energy light curves.

引用

页码：1618 / 1633

页数：16

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