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We present a multiwavelength study of the environment of the unidentified X-ray/γ-ray sources IGR J18027-1455 and IGR J21247+5058, recently discovered by the IBIS/ISGRI instrument, onboard the INTEGRAL satellite. The main properties of the sources found inside their position error circles, give us clues about the nature of these high-energy sources.

On the Nature of the Unidentified X-Ray/γ-Ray Sources IGR J18027-1455 and IGR J21247+5058