Institute of Astronomy


Intergalactic Medium at High Redshift

The intergalactic medium (IGM) and not galaxies contain most of the baryons  (e.g. H, He, C, N, O) in the Universe. We use spectroscopic observations of high redshift backgound quasars to study this material.

Cambridge Astronomy Survey Unit

CASU is involved in survey astronomy with expertise covering ground- and space-based projects ranging from data processing and image analysis techniques through to data curation and access to UK facility data archives.

X-ray Group

X-ray astronomy research in Cambridge is carried out by an active X-ray Astronomy group whose research focusses on accretion on to compact objects and the physics of clusters of galaxies.


Typically, the target systems correspond to lensing of z > 0.5 star-forming galaxies by luminous red galaxies and brightest cluster galaxies.