IRAP > Séminaires > Calendrier des séminaires > Multi-wavelength polarimetry of strongly magnetised neutron stars: theoretical modeling and observations

Multi-wavelength polarimetry of strongly magnetised neutron stars: theoretical modeling and observations

Séminaire le 10 jan 2019 de 11h00 à 12h00
Salle de conférence Salle de conférence
Denis Gonzalez-Caniulef

Mullard Space Science Laboratory, University College London

Neutron stars can have magnetic fields as strong as B ~ 10^13 - 10^15 G, far above those attainable by terrestrial laboratories. Spectro-polarimetric observations  of these sources  hold the  potential to reveal the properties of matter  and vacuum under  strong magnetic fields. In this talk, I  will discuss the  modeling  of the polarised  thermal  emission  from  magnetised neutron  stars and the VLT polarimetric  observation  of RX J1856.5-3754, in which a potential signal  of  QED vacuum   birefringence was  identified.I will also present  recent developments to model the  atmosphere of magnetars and the  prospects for  future X-ray polarimetric observations with the IXPE and eXTP missions.

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