Unveiling the enigmatic nature of the gamma -ray source 2FGL J1544.5-1126

Here we require a 30ks XMM pointing in order to unveil the nature of theenigmatic gamma ray source 2FGL J1544.51126. This source was first supposedto be an AGN, hence an extragalactic object; however, Xray and optical datarevealed its galactic nature, but at present it has no clear classification. Theproposed observation with XMM will allow us to reveal its emission propertiesthus clarifying its hidden nature.