Microlensing of the Quadruply Lensed Quasar PG 1115+080

Details Microlensing of the Quadruply Lensed Quasar PG 1115+080 Microlensing of the Quadruply Lensed Quasar PG 1115+080

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2199p&link_type=abstract

Chandra Proposal ID #08700229

Physics

Chandra Proposal Id #08700229

Scientific paper

The quaduply lensed quasar PG 1115+080 shows strong evidence from Chandra observations carried out in 2000 of being microlensed by one or more stellar mass objects in the lensing galaxy. If true, the X-ray and optical flux ratios among the four images place severe constraints on the sizes of the emitting regions. Under the microlensing hypothesis, the strongly demagnified A2 image should become less demagnified on a time scale of ~10 years. Recent XMM observations suggest this could be taking place. A 30 ks Chandra observation will provide a crucial test of the microlensing hypothesis.

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