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The present scenario for high-luminosity long gamma-ray bursts is stronglyinfluenced by the paper of Fruchter et al. (2006). Whereas the main contentionof this paper that these GRBs occur in low-metallicity irregular galaxies isbased on a considerable collection of observational results and although themain thesis is doubtless correct, the paper does not explain the dynamics thatproduces such GRBs and much of the discussion not directly concerning the mainthesis is wrong. We propose a dynamics and elucidate how the Fruchter et al.(2006) results may be tested, in our neighborhood in the LMC, suggesting thatLMC X-3 is a relic of a high luminosity explosion, probably accompanied by aGRB and hypernova explosion. The way to test our suggestion is to measure thesystem velocity of the present black hole. We correct errors of the Fruchter etal. paper in stellar evolution, so that the study of GRBs is consistent withit. We show that the subluminous GRB 060218 had a low-mass black hole ascentral engine.

LMC X-3 May Be a Relic of a GRB Similar to Cosmological GRBs