Peter M. WoodsChryssa KouveliotouErsin GöğüşMark H. FingerJean SwankDon A. SmithKevin HurleyChristopher Thompson
We report the detection of large flux changes in the persistent X-ray flux of SGR 1900+14 during its burst active episode in 1998. Most notably, we find a factor ∼700 increase in the non-burst X-ray flux following the August 27th flare, which decayed in time as a power-law. Our measurements indicate that the pulse fraction remains constant throughout this decay. This suggests a global flux enha...
This is a brief review of how sigma models in Projective Superspace have become important tools for constructing new hyperkähler metrics. Contribution to “The 27th Winter School GEOMETRY AND PHYSICS”, Czech Republic, Srni, January 13 20, 2007
