Combined Solar system and rotation curve constraints on MOND

Aurélien Hees, Benoit Famaey, Garry W. Angus, Gianfranco Gentile

    Research output: Contribution to journalArticle

    32 Citations (Scopus)

    Abstract

    The Modified Newtonian Dynamics (MOND) paradigm generically predicts that the external gravitational field in which a system is embedded can produce effects on its internal dynamics. In this communication, we first show that this external field effect (EFE) can significantly improve some galactic rotation curves fits by decreasing the predicted velocities of the external part of the rotation curves. In modified gravity versions of MOND, this EFE also appears in the Solar system and leads to a very good way to constrain the transition function of the theory. A combined analysis of the galactic rotation curves and Solar system constraints (provided by the Cassini spacecraft) rules out several classes of popular MOND transition functions, but leaves others viable. Moreover, we show that Laser Interferometer Space Antenna Pathfinder will not be able to improve the current constraints on these still viable transition functions.

    Original languageEnglish
    Pages (from-to)449-461
    Number of pages13
    JournalMonthly Notices of the Royal Astronomical Society
    Volume455
    Issue number1
    DOIs
    Publication statusPublished - 2016

    Fingerprint

    solar rotation
    solar system
    galactic rotation
    curves
    interferometer
    LISA (observatory)
    antenna
    spacecraft
    laser
    communication
    gravitational fields
    leaves
    gravity
    gravitation
    effect

    All Science Journal Classification (ASJC) codes

    • Astronomy and Astrophysics
    • Space and Planetary Science

    Cite this

    Hees, Aurélien ; Famaey, Benoit ; Angus, Garry W. ; Gentile, Gianfranco. / Combined Solar system and rotation curve constraints on MOND. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 455, No. 1. pp. 449-461.
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    Combined Solar system and rotation curve constraints on MOND. / Hees, Aurélien; Famaey, Benoit; Angus, Garry W.; Gentile, Gianfranco.

    In: Monthly Notices of the Royal Astronomical Society, Vol. 455, No. 1, 2016, p. 449-461.

    Research output: Contribution to journalArticle

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