This research was published in the June 10, 2003 issue of The Astrophysical Journal.
Headquartered in Cambridge, Massachusetts, the Harvard-Smithsonian Center for
Astrophysics (CfA) is a joint collaboration between the Smithsonian
Astrophysical Observatory and the Harvard College Observatory. CfA scientists
organized into six research divisions study the origin, evolution, and ultimate
fate of the universe.