The following people are in this group:
Professor Mark Birkinshaw William P. Coldrick Professor of Cosmology and Astrophysics Tel. (0117) 928 8775 mark.birkinshaw@bristol.ac.uk
Professor Malcolm Bremer Professor Tel. (0117) 928 8764 m.bremer@bristol.ac.uk
Miss Elizabeth Mannering Physics (PhD) l.mannering@bristol.ac.uk
Dr Ben Maughan Lecturer Tel. (0117) 3316822 ben.maughan@bristol.ac.uk
Professor Diana Worrall Professor Tel. (0117) 928 8787 d.worrall@bristol.ac.uk
Dr Andrew Young Lecturer Tel. (0117) 928 8716 andy.young@bristol.ac.uk
A number of group members are involved in the study of active galactic nuclei (AGN), particularly , using radio, infra-red, optical, and X-ray techniques (, , , Bliss, Mannering). Interests include the environments and dynamics of radio sources, unified models for both high-power and low-power objects, observation and modelling of jets and the X-ray/radio relationship in radio galaxies and quasars. Instruments used by the group include the , the , , the , , , the , , , and .
Active galaxies can also be used as cosmological probes. Powerful radio sources are markers of massive structures (clusters of galaxies); by we can find massive structures in the early universe, which allows us to test models of structure formation, a key goal of cosmology. Once these structures are found, multi-waveband observations are being used to determine key parameters such as mass, dynamical state and baryon content. Radio observations (e.g. of the Sunyaev-Zel'dovich effect), optical (peculiar velocities, weak lensing) and X-ray observations (measurement of the hot intracluster plasma properties) all contribute to these studies. (, , , ).
