Chandra Spectroscopy of the Most Luminous Nearby Quasar, PDS 456

Details Chandra Spectroscopy of the Most Luminous Nearby Quasar, PDS 456 Chandra Spectroscopy of the Most Luminous Nearby Quasar, PDS 456

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1283r&link_type=abstract

Chandra Proposal ID #04700598

Physics

Chandra Proposal Id #04700598

Scientific paper

We propose a 150 ksec Chandra-HETGS observation of the most luminous nearby quasar, PDS 456. PDS 456 is the brightest known quasar, twice as luminous as 3C 273. PDS 456 shows some remarkable properties; broad absorption lines are present in our XMM-RGS spectrum together with a series of ionized iron K edges above 7 keV. Thus PDS 456 the ideal candidate to study at the highest resolution with the HETGS. We will utilize the high spectral resolution of the HETGS to resolve the absorption line profiles, measuring the velocity widths and outflow velocities, and hence determine the geometry and location of the outflowing gas. These measurements could provide evidence for a massive outflow in PDS 456, requiring that accretion occurs at or exceeding the Eddington rate.

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