Observations Of The Relation Between Lensing Signal And Luminosity: Implications For MOND

Details Observations Of The Relation Between Lensing Signal And Luminosity: Implications For MOND Observations Of The Relation Between Lensing Signal And Luminosity: Implications For MOND

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...21115809t&link_type=abstract

American Astronomical Society, AAS Meeting #211, #158.09

Astronomy and Astrophysics

Astronomy

Scientific paper

We study the amplitude of the weak gravitational lensing signal as a function of lens luminosity. We consider measurements around relatively isolated galaxies from the Red-sequence Cluster Survey and lenses in low-density regions from the Sloan Digital Sky Survey. We find that the amplitude of the lensing signal as a function of luminosity is well described by a power law with a best-fit slope of $1.05+0.113 -0.162 . This result is inconsistent with Modified Newtonian Dynamics, which predicts a slope of ˜ 0.5.

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