Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Testing cosmogonic models with gravitational lensing.

J Wambsganss, R Cen, J P Ostriker

    Science (New York, N.Y.)
    |April 14, 1995
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    A cluster-randomized trial of client and provider directed financial interventions to align incentives with appropriate case management in private medicine retailers: results of the TESTsmART Trial in Lagos, Nigeria.

    medRxiv : the preprint server for health sciences·2024
    Same author

    A cluster-randomized trial of client and provider-directed financial interventions to align incentives with appropriate case management in retail medicine outlets: results of the TESTsmART Trial in western Kenya.

    medRxiv : the preprint server for health sciences·2023
    Same author

    Modelling the lifetime cost-effectiveness of radical prostatectomy, radiotherapy and active monitoring for men with clinically localised prostate cancer from median 10-year outcomes in the ProtecT randomised trial.

    BMC cancer·2020
    Same author

    Feasibility of Group Problem Management Plus (PM+) to improve mental health and functioning of adults in earthquake-affected communities in Nepal.

    Epidemiology and psychiatric sciences·2020
    Same author

    Observations of the missing baryons in the warm-hot intergalactic medium.

    Nature·2018
    Same author

    Long noncoding RNA HOXD-AS1 regulates proliferation of cervical cancer cells by activating Ras/ERK signaling pathway.

    European review for medical and pharmacological sciences·2017
    Same journal

    Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

    Science (New York, N.Y.)·2026
    Same journal

    Local signals, systemic decline.

    Science (New York, N.Y.)·2026
    Same journal

    The mechanics of liver regeneration.

    Science (New York, N.Y.)·2026
    Same journal

    Computing in a memory with physics.

    Science (New York, N.Y.)·2026
    Same journal

    Retraction.

    Science (New York, N.Y.)·2026
    Same journal

    Making time.

    Science (New York, N.Y.)·2026
    See all related articles

    Gravitational lensing tests cosmic models by detecting mass variations. Simulations show the standard cold dark matter (CDM) model predicts too many widely split quasar images, contradicting observations.

    Area of Science:

    • Cosmology
    • Astrophysics
    • Computational simulations

    Background:

    • Gravitational lensing is sensitive to mass inhomogeneities, making it a key test for cosmological models.
    • The standard cold dark matter (CDM) model is a leading cosmological framework.

    Purpose of the Study:

    • To rigorously test the standard CDM model using detailed gravitational lensing simulations.
    • To assess the consistency of the CDM model with observational data on quasar image splitting.

    Main Methods:

    • Numerical propagation of light rays through simulated universes with CDM-derived inhomogeneities.
    • Utilizing massive, fully nonlinear computer simulations to model light bending.

    Main Results:

    • The standard CDM model predicts a higher frequency of widely split quasar images than observed.

    Related Experiment Videos

  • Inconsistencies were found between CDM predictions and strong gravitational lensing data.

    • Conclusions:

    • The COBE-normalized CDM model (Omega=1, H(o)=50) is ruled out by strong gravitational lensing tests.
    • Refinements to the CDM model may be necessary to reconcile it with lensing observations.