Search for ultra high energy primary photons at the Pierre Auger Observatory
The Pierre Auger Observatory, located in Argentina, provides an unprecedented integrated aperture in the search for primary photons with energy above 1017 eV over PH-PRO a large portion of the southern sky.Such photons can be detected in principle via the air showers they initiate at such energies, using the complement of Car Sunshade Auger Observa