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NS parameters from IXPE data of AMPs

Published online by Cambridge University Press:  27 February 2023

Alessandro Di Marco Open the ORCID record for Alessandro Di Marco [Opens in a new window] ,
Alessandro Papitto ,
Maura Pilia ,
Juri Poutanen  and
Tuomo Salmi Open the ORCID record for Tuomo Salmi [Opens in a new window]
Alessandro Di Marco
Affiliation:
INAF/IAPS, via Fosso del Cavaliere 100, I-0133, Rome, Italy
Alessandro Papitto
Affiliation:
INAF/OAR, via Frascati 33, I-00078 Monteporzio Catone (RM), Italy
Maura Pilia
Affiliation:
INAF/OAC, via della Scienza 5, I-09047 Selargius (CA), Italy
Juri Poutanen
Affiliation:
Tuorla Observatory, Dept. of Physics and Astronomy, 20014 University of Turku, Finland
Tuomo Salmi
Affiliation:
Anton Pannekoek Inst. Astronomy, Univ. Amsterdam, Science Park 904, 1090GE, NL
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Abstract

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.

Keywords

X-raypolarimetrypulsarIXPE
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S363: Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution , June 2020 , pp. 329 - 331
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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