[Okc-wp4] EO seminar time shift, new time 11:00 in FC61

[Haakon Andresen]

Dear everyone,


Since our very own Ana Sagués Carracedo is defending her PhD thesis on Thursday at 13:00, we

have decided to move the EO seminar to 11:00 instead of 13:15. Good luck Ana!


Please join us on Thursday at 11:00 in FC61 for an interesting talk by Juri Poutane.


Best,
Haakon (for the organisers)


When/where: 30th of May 11:00 in FC61
Speaker: Juri Poutanen (University of Turku, Finland)
Title: Highlights from IXPE observatory
Abstract: How to learn about geometry of astrophysical sources if they cannot be resolved?
One of the options is to study them in polarized light. Scattering in an asymmetric medium produces polarized radiation with
the polarization degree reflecting the asymmetry and the polarization angle - the orientation of the medium.
Polarization of synchrotron radiation allows us to measure the orientation of the magnetic field and its homogeneity.
Compact objects such as neutron stars and black holes emit most of their radiation in the X-ray band and thus it is natural to look for polarization in that band.
The launch of the Imaging X-ray Polarimeter Explorer (IXPE) in December 2021 opened a new window to the Universe allowing us to study compact sources with polarized X-rays.
In this talk, I will give an overview of the IXPE observatory and present major results concentrating mostly on X-ray pulsars and weakly magnetized neutron stars.
I will also mention discoveries made in other fields, such as magnetars, supernova remnants, and jets in blazars.


Zoom
https://stockholmuniversity.zoom.us/j/3575421837
Meeting ID: 357 542 1837<tel:3575421837>


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