IGR J11014-6103

The pulsar IGR J1104-6103 with supernova remnant origin, nebula and jet

IGR J11014-6103, also known as the Lighthouse Nebula, is a neutron star with the largest jet observed in the Milky Way Galaxy. The rapidly spinning neutron star (or pulsar) has a wind nebula tail trailing behind it for about 3 light years. The jet, aligned with the pulsar’s rotation axis, is perpendicular to the pulsar's trajectory and reportedly extends out over 37 light years. The estimated jet velocity is 80 per cent of the speed of light. This high speed runaway pulsar was created and ejected about 10 - 20 thousand years prior, from a supernova explosion which created the supernova remnant MSH 11-61A. This pulsar apparently does not have an accretion disk; there are 15 known Accreting Millisecond X-Ray Pulsars (AMXPs) and IGR J11014-6103 is not among them.[1] Reportedly the jet is only seen in x-rays and there is no radio signature,[2] possibly due to orientation and/or an absence of accretion material. The pulsar's speed is reported between 0.001 - 0.003c (not unusual for a runaway neutron star).[3][4][5][6] Some other neutron stars have been observed to have extremely high velocity jets.[7]

References

  1. ↑ http://arxiv.org/abs/1206.2727
  2. ↑ http://www.abc.net.au/science/articles/2014/02/19/3948039.htm
  3. ↑ http://www.messagetoeagle.com/pulsarspeedest001.php
  4. ↑
  5. ↑ http://arxiv.org/pdf/1511.01944.pdf
  6. ↑ http://www.slate.com/blogs/bad_astronomy/2014/02/19/neutron_star_jet_an_exploded_star_creates_a_truly_bizzare_scene.html
  7. ↑ http://www.dailygalaxy.com/my_weblog/2015/08/neutron-star-jets-near-speed-of-light-rival-those-of-black-holes.html

External links


This article is issued from Wikipedia - version of the Saturday, April 30, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.