X-ray softening during the 2008 outburst of XTE J1810-189

Shan-Shan Weng, Shuang-Nan Zhang, Shu-Xu Yi +2

XTE J1810-189 underwent an outburst in 2008, and was observed over $\sim 100$ d by RXTE. Performing a time-resolved spectral analysis on the photospheric radius expansion burst det…