[BRIEF NOTE] Tidelocked Worlds

[rfmcdonald]

I recall seeing links to an arXiv paper a while back regarding computer models of the climates of tidelocked Earth-like worlds, planets which orbit within the life star of a star so dim that the planet becomes tidally locked, with one hemisphere of eternal light, another of permanent darkness, and a presumably habitable twilight zone where the two hemispheres meet. Does anyone have URLs for this or other sources?