Handling Background in IXPE polarimetric data
arXiv:2302.02927 · doi:10.3847/1538-3881/acba0f
Abstract
IXPE (Imaging X-ray Polarimetry Explorer) is a Small Explorer mission by NASA and ASI, launched on December 9 2021, dedicated to investigating X-ray polarimetry allowing angular-, time- and energy-resolved observations in the 2--8 keV energy band. IXPE is in Science Observation phase since January 2022; it comprises of three identical telescopes with grazing-incidence mirrors, each one having in the focal plane a Gas Pixel Detector (GPD). In this paper, we present a possible guideline to obtain an optimal background selection in polarimetric analysis, and a rejection strategy to remove instrumental background. This work is based on the analysis of IXPE observations, aiming to improve as much as possible the polarimetric sensitivity. In particular, the developed strategies have been applied ``as a case study'' to the IXPE observation of the 4U 0142+61 magnetar.
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Cited by in corpus (51)
- Uncovering the geometry of the hot X-ray corona in the Seyfert galaxy NGC4151 with IXPE
- Cygnus X-3 revealed as a Galactic ultraluminous X-ray source by IXPE
- Discovery of strongly variable X-ray polarization in the neutron star low-mass X-ray binary transient XTE J1701462
- X-ray polarimetry and spectroscopy of the neutron star low-mass X-ray binary GX 9+9: an in-depth study with IXPE and NuSTAR
- X-ray Polarization of BL Lacertae in Outburst
- Dramatic Drop in the X-Ray Polarization of Swift J1727.81613 in the Soft Spectral State
- Magnetic Field Properties inside the Jet of Mrk 421: Multiwavelength Polarimetry Including the Imaging X-ray Polarimetry Explorer
- Highly Significant Detection of X-Ray Polarization from the Brightest Accreting Neutron Star Sco X-1
- First detection of X-ray polarization from the accreting neutron star 4U 1820-303
- Recovery of the X-ray polarisation of Swift J1727.81613 after the soft-to-hard spectral transition
- X-ray pulsar GRO J100857 as an orthogonal rotator
- X-ray polarimetry of X-ray pulsar X Persei: another orthogonal rotator?
- Complex variations of X-ray polarization in the X-ray pulsar LS V +44 17/RX J0440.9+4431
- IXPE observations of the quintessential wind-accreting X-ray pulsar Vela X-1
- X-Ray Polarized View on the Accretion Geometry in the X-Ray Binary Circinus X-1
- A polarimetrically oriented X-ray stare at the accreting pulsar EXO 2030+375
- X-ray polarimetry of the accreting pulsar GX 301-2
- Ultrasoft state of microquasar Cygnus X-3: X-ray polarimetry reveals the geometry of astronomical puzzle
- Discovery of a strong rotation of the X-ray polarization angle in the galactic burster GX 13+1
- New polarimetric study of the galactic X-ray burster GX 13+1
- A second view on the X-ray polarization of NGC 4151 with IXPE
- X-ray polarization measurement of the gold standard of radio-quiet active galactic nuclei : NGC 1068
- Studying geometry of the ultraluminous X-ray pulsar Swift J0243.6+6124 using X-ray and optical polarimetry
- X-ray spectro-polarimetric characterization of GX 340+0 in the horizontal branch: a highly inclined source?
- High optical to X-ray polarization ratio reveals Compton scattering in BL Lacertae's jet
- Probing the polarized emission from SMC X-1: the brightest X-ray pulsar observed by IXPE
- Discovery of Polarized X-Ray Emission from the Accreting Millisecond Pulsar SRGA J144459.2-604207
- Discovery of a shock-compressed magnetic field in the north-western rim of the young supernova remnant RX J1713.7-3946 with X-ray polarimetry
- Pulsar-wind-nebula-powered Galactic center X-ray filament G0.13-0.11: Proof of the synchrotron nature by IXPE
- Constraining the geometry of the dipping atoll 4U 1624-49 with X-ray spectroscopy and polarimetry
- IXPE Observation of the Low-Synchrotron Peaked Blazar S4 0954+65 During An Optical-X-ray Flare
- X-ray Dips and Polarization Angle Swings in GX 13+1
- X-ray Polarization of the High-Synchrotron-Peak BL Lacertae Object 1ES 1959+650 during Intermediate and High X-ray Flux States
- Revealing two orthogonally polarized spectral components in Vela X-1 with IXPE
- X-ray polarization of Z-type neutron star low-mass X-ray binaries -- I. Model-independent, time-resolved X-ray polarimetry
- A polarized view of the young Pulsar Wind Nebula 3C 58 with IXPE
- Polarized multiwavelength emission from pulsar wind - accretion disk interaction in a transitional millisecond pulsar
- X-ray spectropolarimetric characterization of the Z-source GX 340+0 in the normal branch
- Advanced Weights for IXPE Polarization Analysis
- X-ray polarization in SN 1006 southwest shows spatial variations and differences with the radio band
- Exploring polarization and geometry in the X-ray pulsar 4U 1538-52
- Polarized X-rays Correlated with Short--Timescale Variability of Cygnus X-1
- IXPE view of the Sco-like source GX 349+2 in the normal branch
- First Detection of X-ray Polarization and Its Short-term Increase Pre- and Post-Eclipse in HMXB 4U 1700-377
- Spatially resolved polarization variation of the Crab Nebula
- Probing the polarized emission from the accretion-powered pulsar 4U 1907+09 with IXPE
- IXPE Polarizations of the Lighthouse Pulsar, Trail, and Filament
- X-ray polarization observations of NGC 2110 with IXPE
- Magnetic-field Order in the Southwestern Rim of RCW 86 Constrained Using X-Ray Polarimetry
- X-ray polarization of Z-type neutron star low-mass X-ray binaries -- II. Spectropolarimetric analysis
- Detection of Compton scattering in the jet of 3C 84