X-ray Spectrometry of SN1987A
收藏资源简介:
Since Jan. 2007, our yearly XMMNewton monitoring of SN 1987A yields EPIC andRGS spectra of unprecedented quality. The fluxes and broadening of the numerousemission lines provide information on the evolution of the Xray emitting plasma and its dynamics. The soft Xray light curve shows a significant flatteningafter 2006. To further monitor the turnover we propose to continue our XMMNewton monitoring of SN 1987A. This will allow us to further study the timeevolution of the shock conditions and abundance profiles. At high energiesEPICpn can help to clarify the extremely low observed Fe abundance by followingthe evolution of the detected FeK line. Is most of the Fe swallowed by thecentral compact object or is the emission from the inner sections of the progenitor star still absorbed? truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]



