Are some high redshift galaxies actually blueshifting?

An appreciable number of galaxies have been discovered in recent years whic h are assigned high redshifts. High redshift galaxies (HRGs) are used as co smological tools for probing early universe and knowledge of star formation . However, literature search revealed some inconsistencies in identificatio n of emission lines used for redshift determination in some of the HRGs. We reexamined the spectra of 15 HRGs, as examples, that are available in the published literature and show that the high values of redshift may have bee n assigned to these objects due to the misidentification of the observed li nes. We demonstrate that the observed emission lines can be identified with alternative search lines at higher wavelengths which are blueshifted inste ad of the lines used for redshift measurements. Observed blueshifts can be interpreted in a model of multiple expanding universes.