Accretion in strong field gravity with eXTP


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De Rosa A., Uttley P., Gou L., Liu Y., Bambi C., Barret D., ...More

SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, vol.62, no.2, 2019 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Review
  • Volume: 62 Issue: 2
  • Publication Date: 2019
  • Doi Number: 10.1007/s11433-018-9297-0
  • Title of Journal : SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
  • Keywords: X-ray, black holes physics, accretion, QUASI-PERIODIC OSCILLATIONS, BLACK-HOLE SPIN, X-RAY BINARIES, LENS-THIRRING PRECESSION, ACTIVE GALACTIC NUCLEI, ULTRA-FAST OUTFLOWS, XMM-NEWTON, IRON K, ELECTROMAGNETIC EMISSION, SPECTRAL FEATURES

Abstract

In this paper we describe the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to accretion flows in the strong field gravity regime around both stellar-mass and supermassive black-holes. eXTP has the unique capability of using advanced "spectral-timing-polarimetry" techniques to analyze the rapid variations with three orthogonal diagnostics of the flow and its geometry, yielding unprecedented insight into the inner accreting regions, the effects of strong field gravity on the material within them and the powerful out flows which are driven by the accretion process.