Four ULIGs (Ultra-Luminous Infrared Galaxies) whose power rivals QSOs and whose spectra often show signs of "activity". They may be QSOs in formation -- currently shrouded in dust.
ULIGs may be precursors of QSOs |
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Four ULIGs (Ultra-Luminous Infrared Galaxies) whose power rivals QSOs and whose spectra often show signs of "activity". They may be QSOs in formation -- currently shrouded in dust.
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