Hard X-ray Polarimetry -- An overview of the method, science drivers and recent findings
arXiv:2104.05244 · doi:10.1007/s12036-021-09769-5
Abstract
The last decade has seen a leapfrog in the interest in X-ray polarimetry with a number of new polarization measurements in hard X-rays from AstroSat, POLAR, GAP, and PoGO+. The measurements provide some interesting insights into various astrophysical phenomena such as coronal geometry and disk-jet connection in black hole X-ray binaries, hard X-ray emission mechanism in pulsars and Gamma Ray Bursts (GRB). They also highlight an increase in polarization with energy which makes hard X-ray polarimetry extremely appealing. There is a number of confirmed hard X-ray polarimetry experiments which along with the existing instruments (AstroSat and INTEGRAL) makes this field further exciting. Polarization experiments may also see a significant progress in sensitivity with new developments in scintillator readouts, active pixel sensors, CZT detectors. In particular, the advent of hard X-ray focusing optics, will enable designing of compact focal plane polarimeters with a multifold enhancement in sensitivity. In this review, we will focus on the recent polarimetry findings, science potential of hard X-ray polarimetry along with possible improvements in the measurement techniques.
Review article (accepted for publication in JAA)
References in corpus (30)
- The Physics of Gamma-Ray Bursts and Relativistic Jets
- The Internal-Collision-Induced Magnetic Reconnection and Turbulence (ICMART) Model of Gamma-Ray Bursts
- X-ray reverberation around accreting black holes
- Magnetars: Properties, Origin and Evolution
- Polarization of the Crab pulsar and nebula as observed by the Integral/IBIS telescope
- Polarisation studies of the prompt gamma-ray emission from GRB 041219a using the Spectrometer aboard INTEGRAL
- A Sealed Gas Pixel Detector for X-ray Astronomy
- Gamma Ray Bursts
- Thermal disc emission from a rotating black hole: X-ray polarization signatures
- Detailed high-energy characteristics of AXP 4U 0142+61 - Multi-year observations with INTEGRAL, RXTE, XMM-Newton and ASCA
- Optical polarisation of the Crab pulsar: precision measurements and comparison to the radio emission
- Detailed polarization measurements of the prompt emission of five Gamma-Ray Bursts
- GRB 140206A: the most distant polarized Gamma-Ray Burst
- Re-detection and a Possible Time Variation of Soft X-ray Polarisation from the Crab
- Broadband X-ray Imaging and Spectroscopy of the Crab Nebula and Pulsar with NuSTAR
- Jet contributions to the broad-band spectrum of Cyg X-1 in the hard state
- Accretion geometry of the black-hole binary Cygnus X-1 from X-ray polarimetry
- X-Ray Polarization of Solar Flares Measured with Rhessi
- X-ray Polarization in Relativistic Jets
- Calibration of the Gamma-RAy Polarimeter Experiment (GRAPE) at a Polarized Hard X-Ray Beam
- Optimization of the Design of the Hard X-ray Polarimeter X-Calibur
- Time-resolved optical/near-IR polarimetry of V404 Cyg during its 2015 outburst
- AstroSat CZT Imager observations of GRB 151006A: timing, spectroscopy, and polarisation study
- Building Large Area CZT Imaging Detectors for a Wide-Field Hard X-ray Telescope - ProtoEXIST1
- Polarization of the Crab Nebula with disordered magnetic components
- Preflight performance studies of the PoGOLite hard X-ray polarimeter
- Maximum Likelihood Compton Polarimetry with the Compton Spectrometer and Imager
- Characterization of scatterers for an active focal plane Compton polarimeter
- Comparative study of different scattering geometries for the proposed Indian X-ray polarization measurement experiment using Geant4
- A stacked prism lens concept for next generation hard X-ray telescopes