The pulsar synchrotron in 3D: curvature radiation

被引：45

作者：

Contopoulos, Ioannis ^{[1
]}

Kalapotharakos, Constantinos ^{[1
]}

机构：

[1] Acad Athens, Res Ctr Astron & Appl Math, Athens 11527, Greece

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2010年 / 404卷 / 02期

关键词：

stars: magnetic fields; pulsars: general; ROTATING NEUTRON-STARS; PERFECTLY MATCHED LAYER; ELECTROMAGNETIC-WAVES; OPTICAL POLARIZATION; RADIO-EMISSION; CRAB PULSAR; SLOT GAPS; MAGNETOSPHERE; ABSORPTION; WINDS;

D O I：

10.1111/j.1365-2966.2010.16338.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the strong electric current sheet that develops at the tip of the pulsar closed line region through time-dependent 3D numerical simulations of a rotating magnetic dipole. We show that curvature radiation from relativistic electrons and positrons in the current sheet may naturally account for several features of the high-energy pulsar emission. We obtain light curves and polarization profiles for the complete range of magnetic field inclination angles and observer orientations, and compare our results to recent observations from the Fermi gamma-ray telescope.

引用

页码：767 / 778

页数：12

共 36 条

[1]

ABDO A, 2009, APJS IN PRESS

[2] PAIR CREATION ABOVE PULSAR POLAR CAPS - GEOMETRICAL STRUCTURE AND ENERGETICS OF SLOT GAPS [J].

ARONS, J .

ASTROPHYSICAL JOURNAL, 1983, 266 (01) :215-241

[3]

BAI XN, 2009, ARXIV09105741

[4] WAVE-PROPAGATION IN PULSAR MAGNETOSPHERES - REFRACTION OF RAYS IN THE OPEN FLUX ZONE [J].

BARNARD, JJ ;

ARONS, J .

ASTROPHYSICAL JOURNAL, 1986, 302 (01) :138-162

[5]

BARTEL N, 1978, ASTRON ASTROPHYS, V62, P393

[6] Three-dimensional perfectly matched layer for the absorption of electromagnetic waves [J].

Berenger, JP .

JOURNAL OF COMPUTATIONAL PHYSICS, 1996, 127 (02) :363-379

[7] A PERFECTLY MATCHED LAYER FOR THE ABSORPTION OF ELECTROMAGNETIC-WAVES [J].

BERENGER, JP .

JOURNAL OF COMPUTATIONAL PHYSICS, 1994, 114 (02) :185-200

[8] Relativistic magnetohydrodynamics winds from rotating neutron stars [J].

Bucciantini, N. ;

Thompson, T. A. ;

Arons, J. ;

Quataert, E. ;

Del Zanna, L. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 368 (04) :1717-1734

[9] The coughing pulsar magnetosphere [J].

Contopoulos, I .

ASTRONOMY & ASTROPHYSICS, 2005, 442 (02) :579-586

[10] The pulsar synchrotron: coherent radio emission [J].

Contopoulos, I. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 396 (01) :L6-L10

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