Revealing the X-ray counterpart of the gamma-ray binary candidate HD 215227

Only 7 Galactic binary systems displaying GeV/TeV emission are known, and thephysical properties of these powerful accelerators are still under discussion.The Be star HD 215227, displaying a photometric period of 60 days, has beensuggested to be a new gammaray binary, although no Xray counterpart has beenfound in the limited archival data available. Our recent optical spectroscopicresults unveil that HD 215227 is indeed a binary system, and the orbitalephemeris have allowed us to predict the epochs of expected enhanced Xrayemission. We request one 10ks observations virgul0.3 orbital phases after periastronto discover the Xray counterpart and and unveil the nonthermal nature of theputative Xray source. We are conducting multiwavelength studies of the source. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]