Magnified Views of the Cloverleaf QSO

Details Magnified Views of the Cloverleaf QSO Magnified Views of the Cloverleaf QSO

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cxo..prop.1748c&link_type=abstract

Chandra Proposal ID #06700513

Physics

Chandra Proposal Id #06700513

Scientific paper

We propose to make a deep 90ks observation of the Cloverleaf, a gravitationally lensed low-ionization broad absorption line (LoBAL) quasar. The Cloverleaf is a unique laboratory to test BAL flow models. The presence of a strong iron line (EW = 1110 eV) in one of the lensed images acts as a probe of the kinematic structure of the flow. The proposed deeper observation will unambiguously show whether the iron line is redshifted, confirm the possible microlensing event in image A, constrain the size of the iron line and continuum emission regions, show whether the central source in not being viewed directly and test the proposed ``youth hypothesis'' for LoBALs.

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