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Conditions for jet formation in accreting neutron stars: the magnetic field decay

Published online by Cambridge University Press:  24 February 2011

Federico García ,
Deborah N. Aguilera  and
Gustavo E. Romero
Federico García
Affiliation:
Instituto Argentino de Radioastronomía, Argentina email: fgarcia@iar-conicet.gov.ar
Deborah N. Aguilera
Affiliation:
Ohio University, USA & Laboratorio Tandar, CNEA, Argentina email: aguilera@ohio.edu, aguilera@tandar.cnea.gov.ar
Gustavo E. Romero
Affiliation:
Instituto Argentino de Radioastronomía, Argentina email: fgarcia@iar-conicet.gov.ar
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Abstract

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Accreting neutron stars can produce jets only if they are weakly magnetized (B ~ 108 G). On the other hand, neutron stars are compact objects born with strong surface magnetic fields (B ~ 1012 G). In this work we study the conditions for jet formation in a binary system formed by a neutron star and a massive donor star once the magnetic field has decayed due to accretion. We solve the induction equation for the magnetic field diffusion in a realistic neutron star crust and discuss the possibility of jet launching in systems like the recently detected Supergiant Fast X-ray Transients.

Keywords

stars: neutronmagnetic fieldsaccretionX-rays: binaries
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S275: Jets at all Scales , September 2010 , pp. 309 - 310
Copyright
Copyright © International Astronomical Union 2011

References

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