High resolution spectral imaging of SN 1987A at 20 years: HETG observation

Details High resolution spectral imaging of SN 1987A at 20 years: HETG observation High resolution spectral imaging of SN 1987A at 20 years: HETG observation

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2160c&link_type=abstract

Chandra Proposal ID #08500065

Physics

Chandra Proposal Id #08500065

Scientific paper

We propose deep, high-resolution observations of SN 1987A at ~ 20 years after its explosion. Here we use 270 ks of HETGS observation time to provide the highest-resolution spectra of this target over the band from the O VII triplet (~ 0.55 keV, 22 A) to the Fe-K line region (~ 6-7 keV, 1.9 A). Because SN 1987A is brightening at an accelerating rate we will obtain several hundred counts in individual line-images, e.g., Si XIII and Ne X lines. To maximize the science value of these data, we are teaming on a parallel proposal (McCray, P.I.) to obtain a similarly deep LETG/ACIS data set. With the full set of deep line-images - over a range of 5 in dispersion and a a range of ~4 in wavelength - we can do detailed fitting of spatial-velocity-ionization models of SN 1987A.

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