2007/09/30 by Ignacio Ferreras, Mairi Sakellariadou, Muhammad Furqaan Yusaf · 3 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark fluid #Dark matter #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy formation and evolution #Galaxy rotation curve #Gravitational lens #Modified Newtonian dynamics #Physics #Redshift #Scalar field dark matter #Strong gravitational lensing #Weak gravitational lensing #astro-ph #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevlett.100.031302
published as Phys.Rev.Lett.100:031302,2008 · 5 pages, 3 figures, 1 table Amended version to match publication in Phys. Rev. lett
arxiv created 2007/12/05 · openalex publication_date 2008/01/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
To test modified Newtonian dynamics (MOND) on galactic scales, we study six strong gravitational lensing early-type galaxies from the CASTLES sample. Comparing the total mass (from lensing) with the stellar mass content (from a comparison of photometry and stellar population synthesis), we conclude that strong gravitational lensing on galactic scales requires a significant amount of dark matter, even within MOND. On such scales a 2 eV neutrino cannot explain the excess of matter in contrast with recent claims to explain the lensing data of the bullet cluster. The presence of dark matter is detected in regions with a higher acceleration than the characteristic MOND scale of approximately 10(-10) m/s(2). This is a serious challenge to MOND unless lensing is qualitatively different [possibly to be developed within a covariant, such as Tensor-Vector-Scalar (TeVeS), theory].