Compton Polarimetry

Monte, E. Del; Fabiani, Sergio; Pearce, Mark

doi:10.1007/978-981-16-4544-0_27-1

Cited by 1 publication

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“…Such instruments usually require rotation to obtain uniform azimuthal exposure. See the review of instruments based on Compton scattering by Del Monte et al (2022). Thus, in Section 2, exposure nonuniformities are examined and characterized by two observation-based parameters that can be used to determine the impact of such asymmetries.…”

Section: Introductionmentioning

confidence: 99%

Further Development of Event-based Analysis of X-Ray Polarization Data

Marshall

2024

ApJ

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An event-based maximum likelihood method for handling X-ray polarimetry data is extended to include the effects of background and nonuniform sampling of the possible position angle space. While nonuniform sampling in position angle space generally introduces cross terms in the uncertainties of polarization parameters that could create degeneracies, there are interesting cases that engender no bias or parameter covariance. When including background in Poisson-based likelihood formulation, the formula for the minimum detectable polarization has nearly the same form as for the case of Gaussian statistics derived by Elsner et al. in the limiting case of an unpolarized signal. A polarized background is also considered, which demonstrably increases uncertainties in source polarization measurements. In addition, a Kolmogorov-style test of the event position angle distribution is proposed that can provide an unbinned test of models where the polarization angle in Stokes space depends on event characteristics such as time or energy.

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Section: Introductionmentioning

confidence: 99%

Further Development of Event-based Analysis of X-Ray Polarization Data

Marshall

2024

ApJ

View full text Add to dashboard Cite

show abstract

Compton Polarimetry

Cited by 1 publication

References 104 publications

Further Development of Event-based Analysis of X-Ray Polarization Data

Further Development of Event-based Analysis of X-Ray Polarization Data

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