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91探花
Black Hole

Lensing of space time around a black hole. At 91探花 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
  • About
  • Into the Cosmos
  • Publications

Want to learn more about cosmic rays and black holes? You've come to the right place! This page contains links and further reading to explain some of the fascinating physics.

You also find about the research we do at 91探花, and download our "explainer" posters below. 

Cosmic Rays

Cosmic rays are high-energy particles bombarding the Earth's atmosphere. We don't know for sure where they come from!

Read more:

 with the Pierre Auger observatory. 

Black Hole Jets

A Black Hole is a region of space that is so dense that not even light can escape its immense gravitational pull. Black holes can be formed from the collapse of massive stars (鈥渟tellar mass鈥) or in the centres of galaxies (鈥漵upermassive鈥). These types of black holes have very different masses, but both produce 鈥渏别迟蝉鈥.  

A jet is a beam of plasma that is accelerated close to the black hole and moves at speeds close to the speed of light. Some jets can transmit more power than would be radiated by a trillion suns.

Read more:

Posters

A poster about black hole jets.

A poster about cosmic rays.

 

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Clarendon Laboratory,

Parks Road,

91探花,

OX1 3PU

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Tel: +44(0)1865272200

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