IXPE (Imaging X-ray Polarimetry Explorer)
The Imaging X-ray Polarimetry Explorer (IXPE) exploits the polarization state of light from astrophysical sources to provide insight into our understanding of X-ray production in objects such as neutron stars and pulsar wind nebulae, as well as stellar and supermassive black holes. Launch has been set for December 9, 2021. Technical and science objectives include:
- improving polarization sensitivity by two orders of magnitude over the X-ray polarimeter aboard the Orbiting Solar Observatory OSO-8 (scientists see HEASARC: OSO-8),
- providing simultaneous spectral, spatial, and temporal measurements,
- determining the geometry and the emission mechanism of Active Galactic Nuclei (see Chandra image below) and microquasars,
- finding the magnetic field configuration in magnetars and determining the magnitude of the field,
- finding the mechanism for X ray production in pulsars (both isolated and accreting) and the geometry,
- determining how particles are accelerated in Pulsar-Wind Nebulae.