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We report the results of a simulation and reconstruction of observations of ayoung stellar object (YSO) jet with the LINC-NIRVANA (LN) interferometricinstrument, which will be mounted on the Large Binocular Telescope (LBT). Thissimulation has been performed in order to investigate the ability of observingthe weak diffuse jet line emission against the strong IR stellar continuumthrough narrow band images in the H and K atmospheric windows. In general, thissimulation provides clues on the image quality that could be achieved inobservations with a high dynamic range. In these cases, standard deconvolutionmethods, such as Richardson-Lucy, do not provide satisfactory results: wetherefore propose here a new method of image reconstruction. It consists inconsidering the image to be reconstructed as the sum of two terms: onecorresponding to the star (whose position is assumed to be known) and the otherto the jet. A regularization term is introduced for this second component andthe reconstruction is obtained with an iterative method alternating between thetwo components. An analysis of the results shows that the image qualityobtainable with this method is significantly improved with respect to standarddeconvolution methods, reducing the number of artifacts and allowing us toreconstruct the original jet intensity distribution with an error smaller than10%.

Image reconstruction for observations with a high dynamic range: LINC-NIRVANA simulations of a stellar jet