X-ray Spectrometry of SN1987A

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

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008xmm..prop...28h&link_type=abstract

XMM-Newton Proposal ID #06012001

Computer Science

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

Scientific paper

From our last XMM-Newton observation of SN 1987A performed in Jan. 2008 (100 ks, AO6) we obtained EPIC and RGS spectra of unprecedented quality. The soft X-ray light curve shows a significant flattening after 2005, while at higher energies the light curve seems to steepen. To further monitor the turn-over we propose to continue our yearly XMM-Newton observations of SN 1987A. Together with our accepted AO7 observation this will allow us to study the time evolution of the shock conditions and abundance profiles of, e.g., N, O, Fe, Ne (with RGS). At high energies EPIC-pn can help to clarify the extremely 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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