The XUV Spectrum of Seyfert 1 Galaxies

Details The XUV Spectrum of Seyfert 1 Galaxies The XUV Spectrum of Seyfert 1 Galaxies

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop...34t&link_type=abstract

Chandra Proposal ID #01700320

Computer Science

Chandra Proposal Id #01700320

Scientific paper

We request AXAF observations of TON S180 & Mkn 279, for which FUSE time is guaranteed as part of the PI program. We propose simultaneous FUSE, AXAF & STIS observations to resolve the conflict between the steep EUV continuum derived from composite spectra of QSOs and the weakness of the He II lines then predicted by photoionization models. These observations will also test the claim that the intrinsic XUV spectra of narrow-line and normal Seyfert 1 galaxies differ. Our targets have minimal soft X-ray absorption and are the brightest objects in their class in the EUV. Hence they provide the best opportunity for determining the intrinsic XUV spectra in individual objects.

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