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X-ray Spectrometry of SN1987A

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ESA Earth Online2026-06-22 收录
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Between 2007 and 2014, our yearly XMMNewton monitoring of SN1987A yielded EPICand RGS spectra of unprecedented quality. The fluxes and broadening of thenumerous emission lines provide information on the evolution of the Xrayemitting plasma and its dynamics. The soft Xray light curve shows a mildflattening after 2006, which levelled off in 2014. To further monitor theevolution of the Xray flux and look for the expected turnover we propose tocontinue our monitoring. This will allow us to further study the time evolutionof the shock conditions and abundance profiles. At high energies EPICpn canhelp to clarify the extremely low observed Fe abundance by following theevolution of the detected FeK line. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]

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European Space Agency
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