I am a fourth year Ph.D student at the Institute of Astronomy in Cambridge
working with Professor Richard McMahon and Dr Manda Banerji.
A nearby black hole; Cen A. This is much prettier than pictures of high
redshift quasars. A combination of X-Ray, optical and microwave data. Credit: ESO/WFI
(visible); MPIfR/ESO/APEX/A.Weiss et al. (microwave); NASA/CXC/CfA/R.Kraft et
ORCid ID: orcid.org/0000-0002-4422-0553
My research is focused on the discovery and observations of supermassive back
holes at high redshift (z > 6). These quasars are amongst the brightest known
objects in the Universe and can be used to probe the Epoch of Reionisation
through various follow up studies. Luminous high redshift quasars are also very
rare and require large datasets to find them. The large area covered by the
Dark Energy Survey (DES) and VISTA Hemisphere Survey (VHS) combined with the
large wavelength range they cover between them makes these surveys ideal for
high redshift quasar searches.
Once I have found the quasars I use them for studies of the timeline of
reionisation using the near zone measurements. I am also interested in the
enviroment the quasar is embedded in and have used deep imaging data to study
A z = 6.75 quasar discovered with VHS and DES. Shown in the DES (g, r, i, z, Y)
and VHS (J, K) wavebands. It looks less pretty than the image of Cen A but we
are also seeing it 11 billion years ago.
I am a member of the DES Quasar Working group and through this I have been
heavily involved in the lensed quasar search (based in Cambridge) and also with
target selection for the reverberation mapping project.
For candidate selection tools please follow the appropriate link above. If you
think you should have access to these and don't have the username or password
then please email me.