Astarlike object seen on deep sky photographs coincides with an intense radio source and has a spectrum in which the characteristic lyman pattern of hydrogen spectral lines has been shifted from the ultraviolet to the visible spectral range. what is this object?

A quasar - Quasars are very distant objects. They  are really bright masses of energy and light. The word quasar is actually short for quasi-stellar radio source or quasi-stellar object. This high amount of energy in such a small area can only be formed by matter falling towards a Black Hole. That's why quasars are believed to be huge black holes  in the center of young galaxies.