Magnetic lensing near ultramagnetized neutron stars

Nir J. Shaviv; Jeremy S. Heyl; Yoram Lithwick

doi:10.1046/j.1365-8711.1999.02509.x

Magnetic lensing near ultramagnetized neutron stars

Nir J. Shaviv^*, Jeremy S. Heyl, Yoram Lithwick

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Extremely strong magnetic fields change the vacuum index of refraction. This induces a lensing effect that is not unlike the lensing phenomenon in strong gravitational fields. The main difference between the two is the polarization dependence of the magnetic lensing, a behaviour that induces a handful of interesting effects. The main prediction is that the thermal emission of neutron stars with extremely strong magnetic fields is polarized - up to a few per cent for the largest fields known. This potentially allows a direct method for measuring their magnetic fields.

Original language	English
Pages (from-to)	333-347
Number of pages	15
Journal	Monthly Notices of the Royal Astronomical Society
Volume	306
Issue number	2
DOIs	https://doi.org/10.1046/j.1365-8711.1999.02509.x
State	Published - 21 Jun 1999
Externally published	Yes

Keywords

Magnetic fields
Polarization
Stars: neutron

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10.1046/j.1365-8711.1999.02509.x

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abstract = "Extremely strong magnetic fields change the vacuum index of refraction. This induces a lensing effect that is not unlike the lensing phenomenon in strong gravitational fields. The main difference between the two is the polarization dependence of the magnetic lensing, a behaviour that induces a handful of interesting effects. The main prediction is that the thermal emission of neutron stars with extremely strong magnetic fields is polarized - up to a few per cent for the largest fields known. This potentially allows a direct method for measuring their magnetic fields.",

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AU - Heyl, Jeremy S.

AU - Lithwick, Yoram

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N2 - Extremely strong magnetic fields change the vacuum index of refraction. This induces a lensing effect that is not unlike the lensing phenomenon in strong gravitational fields. The main difference between the two is the polarization dependence of the magnetic lensing, a behaviour that induces a handful of interesting effects. The main prediction is that the thermal emission of neutron stars with extremely strong magnetic fields is polarized - up to a few per cent for the largest fields known. This potentially allows a direct method for measuring their magnetic fields.

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KW - Magnetic fields

KW - Polarization

KW - Stars: neutron

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Magnetic lensing near ultramagnetized neutron stars

Abstract

Keywords

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