Magnetic lensing near ultramagnetized neutron stars

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 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 languageAmerican English
Pages (from-to)333-347
Number of pages15
JournalMonthly Notices of the Royal Astronomical Society
Volume306
Issue number2
DOIs
StatePublished - 21 Jun 1999
Externally publishedYes

Keywords

  • Magnetic fields
  • Polarization
  • Stars: neutron

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