Understanding the Largest Separation Lensed Quasar

Details Understanding the Largest Separation Lensed Quasar Understanding the Largest Separation Lensed Quasar

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop...35k&link_type=abstract

XMM-Newton Proposal ID #05010601

Mathematics

Logic

Groups Of Galaxies, Clusters Of Galaxies, Supercluster, Sdss1029+2623, Xmm-Newton Proposal 05010601

Scientific paper

The gravitational lens SDSS1029+2623 consists of two z=2.197 mini-BAL quasars of nearly identical radio-loudness separated by 22.5 arcsec and superposed on a z~0.55 cluster. While such cluster quasar lenses are rare, their incidence is a powerful probe of the cosmological model, and their properties are a powerful probe of cluster structure. We will use a 25 ksec XMM/MOS observation to obtain the independent determinations of the position and mass of the cluster that are next step to using SDSS J1029+2623 as a cosmological tool. This is of particular interest here because lens models appear to require a potential center significantly offset (30 kpc) from the brightest galaxies.

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