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The aim of this work is to characterize the counterpart to the INTEGRAL HighMass X-ray Binary candidate IGR J19294+1816 so as to establish its true nature.We obtained H band spectra of the selected counterpart acquired with the NICSinstrument mounted on the Telescopio Nazionale Galileo (TNG) 3.5-m telescopewhich represents the first infrared spectrum ever taken of this source. Wecomplement the spectral analysis with infrared photometry from UKIDSS, 2MASS,WISE and NEOWISE databases. We classify the mass donor as a Be star.Subsequently, we compute its distance by properly taking into account thecontamination produced by the circumstellar envelope. The findings indicatethat IGR J19294+1816 is a transient source with a B1Ve donor at a distance of$d = 11 \pm 1$ kpc, and luminosities of the order of $10^{36-37}$ erg s$^{-1}$,displaying the typical behaviour of a Be X-ray binary.

IGR J19294+1816: a new Be-X ray binary revealed through infrared spectroscopy