View Full Version : China's enhanced X-ray Timing and Polarimetry mission (eXTP)

2018-Mar-09, 11:11 AM
The next major project by China in astronomy is going to be the enhanced X-ray Timing and Polarimetry mission (eXTP).


China is planning to build a next-generation X-ray observatory that will study some of the most violent objects in the universe such as black holes, neutron stars and quark stars. The enhanced X-ray Timing and Polarimetry mission (eXTP), which is estimated to cost about three billion yuan (£340m), will be launched by 2025 and involve collaboration with European scientists.

At a kick-off meeting on 2 March held in Beijing at the Institute of High Energy Physics (IHEP), the Chinese Academy of Sciences (CAS), CAS vice president Xiangli Bin put his support behind the mission noting that it should become “China’s flagship science satellite”. The mission team will now spend the next couple of years finalizing the design before building a prototype by 2022. “As we only have seven years to go it sounds like mission impossible,” says Xiangli. “But we will coordinate international efforts and deliver it without delay.”

2018-Mar-14, 11:58 AM
More details on China's eXFP.


The enhanced X-ray Timing and Polarimetry mission (eXTP) is a science mission designed to study the state of matter under extreme conditions of density, gravity and magnetism. Primary goals are the determination of the equation of state of matter at supra-nuclear density, the measurement of QED effects in highly magnetized star, and the study of accretion in the strong-field regime of gravity. Primary targets include isolated and binary neutron stars, strong magnetic field systems like magnetars, and stellar-mass and supermassive black holes.

The mission carries a unique and unprecedented suite of state-of-the-art scientific instruments enabling for the first time ever the simultaneous spectral-timing-polarimetry studies of cosmic sources in the energy range from 0.5-30 keV (and beyond). Key elements of the payload are: