X-ray Spectrometry of SN1987A

Details X-ray Spectrometry of SN1987A X-ray Spectrometry of SN1987A

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop...13h&link_type=abstract

XMM-Newton Proposal ID #06504201

Computer Science

Supernovae, Supernova Remnants, Diffuse (Galactic) Emission And Isolated Neutron Stars, Sn 1987 A

Scientific paper

Since Jan. 2007, our yearly XMM-Newton monitoring of SN 1987A yields EPIC and RGS spectra of unprecedented quality. The fluxes and broadening of the numerous emission lines provide information on the evolution of the X-ray emitting plas- ma and its dynamics. The soft X-ray light curve shows a significant flattening after 2006. To further monitor the turn-over we propose to continue our XMM- Newton monitoring of SN 1987A. This will allow us to further study the time evolution of the shock conditions and abundance profiles of, e.g., N, O, Fe, Ne. At high energies EPIC-pn can help to clarify the low Fe abundance observed so far. Is the Fe completely swallowed by the central compact object or is the emission from the inner sections of the progenitor star still absorbed?

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