The long helical jet of the Lighthouse nebula, IGR J11014-6103

被引：57

作者：

Pavan, L. ^{[1
]}

Bordas, P. ^{[1
,2
]}

Puehlhofer, G. ^{[2
]}

Filipovic, M. D. ^{[3
]}

De Horta, A. ^{[3
]}

O' Brien, A. ^{[3
]}

Balbo, M. ^{[1
]}

Walter, R. ^{[1
]}

Bozzo, E. ^{[1
]}

Ferrigno, C. ^{[1
]}

Crawford, E. ^{[3
]}

Stella, L. ^{[4
]}

机构：

[1] Univ Geneva, ISDC Data Ctr Astrophys, CH-1290 Versoix, Switzerland

[2] Univ Tubingen, Inst Astron & Astrophys, D-72076 Tubingen, Germany

[3] Univ Western Sydney, Computat Astrophys Imaging & Simulat Sch Comp & M, Sydney, NSW 2006, Australia

[4] INAF Osservatorio Astron Roma, I-00040 Rome, Italy

来源：

ASTRONOMY & ASTROPHYSICS | 2014年 / 562卷

关键词：

X-rays: individuals: IGR J11014-6103; stars: jets; stars: neutron; supernovae: individual: MSH 11-61A; ISM: jets and outflows; ISM: supernova remnants; X-RAY; PSR J0357+3205; NEUTRON-STARS; PULSAR; RADIO; ORIGIN; PRECESSION; SUPERNOVA; DISCOVERY; EMISSION;

D O I：

10.1051/0004-6361/201322588

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Context. Jets from rotation-powered pulsars so far have only been observed in systems moving subsonically through their ambient medium and/or embedded in their progenitor supernova remnant (SNR). Supersonic runaway pulsars are also expected to produce jets, but they have not been confirmed to so far. Aims. We investigated the nature of the jet-like structure associated with the INTEGRAL source IGR J11014-6103 (the "Lighthouse nebula"). The source is a neutron star escaping its parent SNR MSH 11-61A supersonically at a velocity exceeding 1000 km s(-1). Methods. We observed the Lighthouse nebula and its jet-like X-ray structure through dedicated high spatial resolution observations in X-rays (with Chandra) and in the radio band (with ATCA). Results. Our results show that the feature is a true pulsar's jet. It extends highly collimated over greater than or similar to 11 pc, displays a clear precession-like modulation, and propagates nearly perpendicular to the system direction of motion, implying that the neutron star's spin axis in IGR J11014-6103 is almost perpendicular to the direction of the kick received during the supernova explosion. Conclusions. Our findings suggest that jets are common to rotation-powered pulsars, and demonstrate that supernovae can impart high kick velocities to misaligned spinning neutron stars, possibly through distinct, exotic, core-collapse mechanisms.

引用

页数：8

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