Sophie Reed Quasar Hunting DES Strides Publications  
Personal Information:
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 al. (X-ray).

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 this.

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.

Candidate Selection:
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