The AKARI North Ecliptic Pole Deep Field is a natural location to accomplish deep extragalactic surveys. It is supported by comprehensive ancillary data extending from radio to X-ray wavelengths, which have been used to classify radio sources as radio-loud and radio-quiet objects and to create a catalogue of Active Galactic Nuclei (AGN). This has been achieved by using a radio-optical classification and colour- colour diagrams rather than the more usual way based on spectroscopy Furthermore, we explore whether this technique can be extended by using a far-Infrared (FIR) colour-colour diagram which has been used to identify 268 high redshift candidates.

ABSTRACT
1. NORTH ECLIPTIC POLE (NEP) DEEP FIELD
2. RADIO-OPTICAL SELECTION
3. AKARI COLOUR-COLOUR DIAGRAMS
4. AGN CLASSIFICATION
5. FIR COLOUR-COLOUR DIAGRAM
6. CONCLUSIONS
REFERENCES

• Laia Barrufet de Soto(RAL Space, The Rutherford Appleton Laboratory)
• Glenn J. White(RAL Space, The Rutherford Appleton Laboratory/Dept of Physical sciences, The Open University)
• Chris Pearson(RAL Space, The Rutherford Appleton Laboratory/Dept of Physical sciences, The Open University)
• Stephen Serjeant(Dept of Physical sciences, The Open University)
• Tanya Lim(RAL Space, The Rutherford Appleton Laboratory)
• Hideo Matsuhara(Inst of Space and Astronautical Science, Japan Aerospace Exploration Agency)
• Nagisa Oi(Inst of Space and Astronautical Science, Japan Aerospace Exploration Agency)
• Marios Karouzos(Astronomy Program, Department of Physics & Astronomy, Seoul National University)
• AKARI-NEP Team(Inst of Space and Astronautical Science, Japan Aerospace Exploration Agency)