ARE SOFT GAMMA-RAY REPEATERS STRANGE STARS

The soft gamma-ray repeaters (SGRs) are proposed to result from young, magnetized strange stars with superconducting cores. As such a strang e star spins down, the quantized vortex lines move outward and drag th e magnetic flux tubes because of the strong coupling between them. Sin ce the terminations of the tubes interact with the stellar crust, the dragged tubes can produce sufficient tension to crack the crust and pu ll parts of the broken platelet into the quark core. The deconfinement of crustal matter into strange quark matter will release energy. The model burst energy, duration, time interval, spectrum, and the persist ent x-ray emission from SGRs are shown to be in agreement with observe d results.