A Deep Look at the (Relatively) X-ray Bright BALQSO FIRST 1556+3517

Details A Deep Look at the (Relatively) X-ray Bright BALQSO FIRST 1556+3517 A Deep Look at the (Relatively) X-ray Bright BALQSO FIRST 1556+3517

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.2006b&link_type=abstract

Chandra Proposal ID #07700811

Computer Science

Chandra Proposal Id #07700811

Scientific paper

We propose a deep ACIS-S observation of the low-ionization broad absorption line (LoBAL) quasar FIRST 1556+3517. The high-ionzation BAL (HiBAL) quasars are the brightest of this X-ray faint class and are apparently normal quasars with moderate absorbing column densities. FIRST 1556+3517 is the X-ray brightest LoBAL quasar known at high z and real quasar luminosities. Our ACIS-S snapshot shows a spectrum too soft and faint to be consistent with that of a simple high-column absorber. Our leading hypothesis is a reflected component akin to that in type 2 AGNs. We were previously granted time, but declined for XMM, which made an observation that was ruined by background flaring.

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