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Only two of the twenty highly luminous starburst galaxies analyzed by Smithet al. exhibit circumnuclear rings of star formation. These galaxies provide alink between 10^11 L_sun systems and classical, less-luminous ringed systems.We report the discovery of a near-infrared counterpart to the nuclear ring ofradio emission in NGC 7771. A displacement between the ~10 radio bright clumpsand the ~10 near-infrared bright clumps indicates the presence of multiplegenerations of star formation. The estimated thermal emission from each radiosource is equivalent to that of ~35000 O6 stars. Each near-infrared bright knotcontains ~5000 red supergiants, on average. The stellar mass of each knot isestimated to be ~10^7 M_sun. The implied time-averaged star formation rate is\~40 M_sun per yr. Several similarities are found between the properties ofthis system and other ringed and non-ringed starbursts. Morphologicaldifferences between NGC 7771 and the starburst + Seyfert 1 galaxy NGC 7469suggest that NGC 7771 may not be old enough to fuel an AGN, or may not becapable of fueling an AGN. Alternatively, the differences may be unrelated tothe presence or absence of an AGN and may simply reflect the possibility thatstar formation in rings is episodic.Comment: accepted for publication in The Astrophysical Journal (10 January  1999); 48 pages including 13 figures; AAS LaTe

The Luminous Starburst Ring in NGC 7771: Sequential Star Formation?