A4 Refereed article in a conference publication
NS parameters from IXPE data of AMPs
Authors: Di Marco Alessandro, Papitto Alessandro, Pilia Maura, Poutanen Juri, Salmi Tuomo
Editors: Troja Eleonora, Baring Matthew G.
Conference name: International Astronomical Union Symposium
Publication year: 2023
Journal: Proceedings of the International Astronomical Union
Book title : Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution : Proceedings of the International Astronomical Union. 2020
Journal name in source: Proceedings of the International Astronomical Union
Number in series: S363
Volume: 16
Issue: S363
First page : 329
Last page: 331
ISBN: 978-1-108-49075-7
ISSN: 1743-9213
eISSN: 1743-9221
DOI: https://doi.org/10.1017/S1743921322000874
Web address : https://doi.org/10.1017/S1743921322000874
IXPE is a NASA/ASI Small Explorer Mission. It will probe the X-ray polarization properties of celestial sources. In particular, for Accretion-powered Millisecond Pulsars (AMPs), IXPE can provide us with unique information on their geometry. These information together with pulse shape modelling will strongly boost the achievable sensitivity on measuring the AMPs mass and the radius. As a case-study, we simulated an observation of SAXJ1808.4-3658 and studied the accuracy that can be achieved in the measured time-dependent Stokes profiles. From these data we estimated how well IXPE will be able to constraint NS geometrical parameters, such as the inclination and hot-spot co-latitude angles.
