Conveners
eXTP – Enhanced X-ray Timing and Polarimetry Mission: Block 1
- Marco Feroci (INAF)
- Fangjun Lu (Institute of High Energy Physics, Chinese Academy of Sciences)
Description
eXTP is a flagship science mission of the Chinese Academy of Sciences and China National Space Administration, with a large contribution by science institutions in Italy, Spain, Austria, Czech Republic, Denmark, France, Germany, the Netherlands, Poland, Switzerland, Turkey. The mission is 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, the study of accretion in the strong-field regime of gravity, as well as multi-messenger astrophysics. 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: the Spectroscopic Focusing Array (SFA)- a set of 9 X-ray optics for a total effective area of ~0.7 m2 and 0.5 m2 at 2 keV and 6 keV respectively, equipped withSilicon Drift Detectors offering 150 eV spectral resolution; the Large Area Detector (LAD) - a deployable set of 640Silicon Drift Detectors, for a total effective area of ~3.4 m2, and spectral resolution better than 250 eV; the Polarimetry Focusing Array (PFA) – a set of 4 X-ray telescope, for a total effective area of >500 cm2 at 2 keV, equipped with imaging gas pixel photoelectric polarimeters; the Wide Field Monitor (WFM) - a set of 3 coded mask wide field units, equipped with position-sensitive Silicon Drift Detectors, each covering a 90 degrees x 90 degrees field of view. The SFA and the PFA will be under Chinese responsibilities, whereas the LAD and WFM will be under European responsibility, with some reciprocal contributions. The planned launch date of the mission is end-2027. The parallel session on eXTP at this conference will report on the status of the mission, its science goals and perspectives.
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 targets include stellar-mass and supermassive black holes, isolated and binary neutron stars, and strong magnetic field systems like magnetars.
In addition to investigating fundamental physics, eXTP will be...
The eXTP (enhanced X-ray Timing and Polarimetry) mission is a flagship international collaboration mission led by China, with large contribution from European countries. The eXTP mission is designed to study the equation of state of ultra-dense matter under extreme conditions of strong gravity, density and magnetic field. Its primary targets contain the isolated and binary neutron stars,...
The enhanced X-ray Timing and Polarimetry mission (eXTP) is a flagship observatory for X-ray timing, spectroscopy and polarimetry developed by an International Consortium led by the Chinese Academy of Science, with a large participation of European institutions.
Thanks to its very large collecting area, good spectral resolution and unprecedented polarimetry capabilities, eXTP will explore the...
Primary science goals for the Enhanced X-ray Timing and Polarimetry (eXTP) mission include studies of matter under conditions of extreme density and strong gravity. I will describe how eXTP's observations of neutron stars and black holes will lead to major advances in both of these areas.
I will outline the so-called two-families scenario in which neutron stars (composed also of hadronic resonances and of hyperons) exist together with strange quark stars, i.e. compact objects composed entirely of deconfined quark matter. The two-families scenario has rather precise and explicit predictions concerning masses and radii, which can be tested by eXTP. In particular we predict the...
Strongly magnetized high energy astrophysical objects, including a variety
of pulsars and magnetars, are expected to produce high degree of X-ray
polarization, which can be used to diagnose the magnetic field, emission
mechanism, and geometry of the objects, and also test the fundamental
physics. In this talk, I will present possible science cases that the
enhanced X-ray Timing and...
Energy shifts of radiation from accreting black holes may be caused by the fast orbital motion and the gravitational redshift near the event horizon. Individual clumps of matter experience the effects of general relativity as they gradually sink into a deep potential well. An episodic supply of material is maintained by tidal disruption events (TDE) and the emerging radiation is modulated in...
In this talk we will present the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to Observatory Science targets. These include flaring stars, supernova remnants, accreting white dwarfs, low and high mass X-ray binaries, etc.
The first detection of gravitational waves on 2015 with the Advanced LIGO and Advanced Virgo interferometers has opened a new observational window in the Universe. The last decade has also welcomed decisive discoveries in neutrino astronomy. Expected advances of gravitational wave and neutrino detectors by the end of the 2020s will mark the start of a golden era of multi-messenger...
