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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
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.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

References

Aguilera, D. N., Pons, J. A., & Miralles, J. A. 2008, A&A 486, 255Google Scholar
Geppert, U. & Urpin, V. 1994, MNRAS, 271, 490CrossRefGoogle Scholar
Massi, M. & Kaufman Bernadó, M. 2008, A&A 477, 1Google Scholar
Migliari, S. & Fender, R. P. 2006, MNRAS, 366, 79CrossRefGoogle Scholar
Potekhin, A. Y. 1999, A&A, 351, 787; and correspoding routines for the electronic conductivity available at www.ioffe.rssi.ru/astro/conduct/condmag.htmlGoogle Scholar
Sguera, V. et al. 2009, ApJ 697, 1194CrossRefGoogle Scholar
Urpin, V. & Konenkov, D. 2008, A&A 483, 223Google Scholar