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Considerations on Possible Directions for a Wide Band Polarimetry X-ray Mission
INAF-Istituto di Astrofisica e Planetologia Spaziali, Via Fosso del Cavaliere 100, Rome, 00133, Italy, Via Fosso del Cavaliere 100.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics. The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, Stockholm, Sweden.ORCID iD: 0000-0001-7011-7229
NASA Marshall Space Flight Center, 320 Sparkman Drive, Huntsville, AL, 35805, USA, 320 Sparkman Drive.
Number of Authors: 332024 (English)In: Galaxies, E-ISSN 2075-4434, Galaxies, E-ISSN 2075-4434, Vol. 12, no 4, article id 47Article, review/survey (Refereed) Published
Abstract [en]

The Imaging X-ray Polarimetry Explorer (IXPE) has confirmed that X-ray polarimetry is a valuable tool in astronomy, providing critical insights into the emission processes and the geometry of compact objects. IXPE was designed to be sensitive in the 2–8 keV energy range for three primary reasons: (1) celestial X-ray sources are bright within this range, (2) the optics are effective, and (3) most sources across various classes were expected to exhibit some level of polarization. Indeed, IXPE is a great success, and its discoveries are necessitating the revision of many theoretical models for numerous sources. However, one of IXPE’s main limitations is its relatively narrow energy band, coupled with rapidly declining efficiency. In this paper, we will demonstrate the benefits of devising a mission focused on a broader energy band (0.1–79 keV). This approach leverages current technologies that align well with theoretical expectations and builds on the successes of IXPE.

Place, publisher, year, edition, pages
MDPI AG , 2024. Vol. 12, no 4, article id 47
Keywords [en]
astronomy, polarimetry, X-rays
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-353594DOI: 10.3390/galaxies12040047ISI: 001305089700001Scopus ID: 2-s2.0-85202604749OAI: oai:DiVA.org:kth-353594DiVA, id: diva2:1899270
Note

QC 20240924

Available from: 2024-09-19 Created: 2024-09-19 Last updated: 2024-09-24Bibliographically approved

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Pearce, Mark

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