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  1. Article

    Open Access

    The high energy Universe at ultra-high resolution: the power and promise of X-ray interferometry

    We propose the development of X-ray interferometry (XRI), to reveal the Universe at high energies with ultra-high spatial resolution. With baselines which can be accommodated on a single spacecraft, XRI can re...

    Phil Uttley, Roland den Hartog, Cosimo Bambi, Didier Barret… in Experimental Astronomy (2021)

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  2. No Access

    Article

    A dynamic black hole corona in an active galaxy through X-ray reverberation map**

    X-ray reverberation echoes are assumed to be produced in the strongly distorted spacetime around accreting supermassive black holes. This signal allows us to spatially map the geometry of the inner accretion flow

    William N. Alston, Andrew C. Fabian, Erin Kara, Michael L. Parker… in Nature Astronomy (2020)

  3. No Access

    Article

    Accretion in strong field gravity with eXTP

    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 superm...

    Alessandra De Rosa, Phil Uttley, LiJun Gou… in Science China Physics, Mechanics & Astrono… (2018)

  4. No Access

    Article

    The enhanced X-ray Timing and Polarimetry mission—eXTP

    In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism...

    ShuangNan Zhang, Andrea Santangelo… in Science China Physics, Mechanics & Astrono… (2018)

  5. No Access

    Article

    The response of relativistic outflowing gas to the inner accretion disk of a black hole

    X-ray detection of an ultrafast outflow of gas is strongly linked with energy emission from the inner accretion disk of a black hole, suggesting that X-rays ionize the outflowing disk wind.

    Michael L. Parker, Ciro Pinto, Andrew C. Fabian, Anne Lohfink… in Nature (2017)

  6. No Access

    Chapter

    Multi-Wavelength Variability

    Multiwavelength variability data, combined with spectral-timing analysis techniques, provides information about the causal relationship between different physical components in accreting black holes. Using fas...

    Phil Uttley, Piergiorgio Casella in The Physics of Accretion onto Black Holes (2015)

  7. No Access

    Article

    Multi-Wavelength Variability

    Multiwavelength variability data, combined with spectral-timing analysis techniques, provides information about the causal relationship between different physical components in accreting black holes. Using fas...

    Phil Uttley, Piergiorgio Casella in Space Science Reviews (2014)

  8. No Access

    Article

    Heartbeat of an active galaxy

    Active galaxies are thought to be the supermassive cousins of binary systems in our Galaxy that contain black holes. Observations of an unusual active galaxy provide compelling evidence that these systems are ...

    Phil Uttley in Nature (2008)