THE DARK-MATTER FRACTION IN THE ELLIPTICAL GALAXY LENSING THE QUASAR PG 1115+080

We determine the most likely dark-matter fraction in the elliptical galaxy quadruply lensing the quasar PG 1115+080 based on analyses of the X-ray fluxes of the individual images in 2000 and 2008. Between the two epochs, the A[subscript 2] image of PG 1115+080 brightened relative to the other images...

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Bibliographic Details
Main Authors: Pooley, D., Blackburne, Jeffrey A., Schechter, Paul L., Wambsganss, J., Rappaport, Saul A, Schwab, J.
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Astronomical Society 2010
Online Access:http://hdl.handle.net/1721.1/52645
https://orcid.org/0000-0002-5665-4172
https://orcid.org/0000-0003-3182-5569