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Black Hole

Lensing of space time around a black hole. At Oxford we study black holes observationally and theoretically on all size and time scales - it is some of our core work.

Credit: ALAIN RIAZUELO, IAP/UPMC/CNRS. CLICK HERE TO VIEW MORE IMAGES.

Dr James Matthews

Royal Society University Research Fellow

Research theme

  • Astronomy and astrophysics
  • Particle astrophysics & cosmology

Sub department

  • Astrophysics

Research groups

  • Galaxy formation and evolution
  • MeerKAT
  • Pulsars, transients and relativistic astrophysics
  • Gamma-ray astronomy
james.matthews@physics.ox.ac.uk
Telephone: 01865(2)73299
Denys Wilkinson Building, room Undercroft
Website
  • About
  • Into the Cosmos
  • Publications

I’m an astrophysicist working at the University of Oxford as a Royal Society URF. My research is at the intersection of theory and observation and my interests are fairly broad, but fundamentally I am interested in the extreme and exotic physics that can be probed using accreting black holes and the outflows they produce.

In particular, my work focuses on the origins of the highest energy cosmic rays, the physics of accretion disc winds, the disc-wind-jet connection in AGN and the hydrodynamics of astrophysical jets. More recently, I have started using X-ray observations of cluster-hosted AGN to search for, and place limits on, axion-like particles, which are exotic dark matter candidates.

I'm delighted to be offering DPhil projects for a 2024 start

Research interests

Black Holes
Cosmic Rays
Particle Acceleration
Astrophysical Jets
Active Galactic Nuclei
Accretion Disc Winds
Axion-like Particles

Selected publications

A disc wind model for blueshifts in quasar broad emission lines

Monthly Notices of the Royal Astronomical Society 526:3 (2023) 3967-3986
JH Matthews, J Strong-Wright, C Knigge, P Hewett, MJ Temple, KS Long, AL Rankine, M Stepney, M Banerji, GT Richards

Echoes of the past: ultra-high-energy cosmic rays accelerated by radio galaxies, scattered by starburst galaxies

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 511:1 (2022) 448-456
AR Bell, JH Matthews

How Do Magnetic Field Models Affect Astrophysical Limits on Light Axion-like Particles? An X-Ray Case Study with NGC 1275

ASTROPHYSICAL JOURNAL 930:1 (2022) ARTN 90
James H Matthews, Christopher S Reynolds, MC David Marsh, Julia Sisk-Reynes, Payton E Rodman

Particle acceleration in astrophysical jets

New Astronomy Reviews Elsevier 89 (2020) 101543
James Matthews, Anthony Bell, Katherine Blundell
210531 210275 132387 251263 224989
See all publications

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