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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 2012, 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. To further monitor the evolution of the Xray flux andlook for a possible turnover we propose to continue our monitoring. This willallow us to further study the time evolution of the shock conditions andabundance profiles. At high energies EPICpn can help to clarify the extremelylow observed Fe abundance by following the evolution 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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