Current data on the globular cluster Palomar 14 are consistent with MOND (Research Note)

G. Gentile, B. Famaey, G. Angus, P. Kroupa

    Research output: Contribution to journalArticle

    20 Citations (Scopus)

    Abstract

    Context: Certain types of globular clusters have the very important property that the predictions for their kinematics in the Newtonian and modified Newtonian dynamics (MOND) contexts are divergent. Aims: Here, we advice regarding the recent claim that the stellar kinematics data (using 17 stars) of the globular cluster Palomar 14 are inconsistent with MOND. Methods: We compare the observations to the theoretical predictions using a Kolmogorov-Smirnov test, which is appropriate for small samples. Results: We find that with the currently available data the MOND prediction for the velocity distribution can only be excluded with a very low confidence level, clearly insufficient to claim that MOND is falsified.

    Original languageEnglish
    Article numberA97
    JournalAstronomy and Astrophysics
    Volume509
    Issue number1
    DOIs
    Publication statusPublished - 2010

    Fingerprint

    globular clusters
    kinematics
    prediction
    predictions
    Kolmogorov-Smirnov test
    confidence
    velocity distribution
    stars

    All Science Journal Classification (ASJC) codes

    • Astronomy and Astrophysics
    • Space and Planetary Science

    Cite this

    @article{bea8e6b6c326496a94510d5ba88a4abb,
    title = "Current data on the globular cluster Palomar 14 are consistent with MOND (Research Note)",
    abstract = "Context: Certain types of globular clusters have the very important property that the predictions for their kinematics in the Newtonian and modified Newtonian dynamics (MOND) contexts are divergent. Aims: Here, we advice regarding the recent claim that the stellar kinematics data (using 17 stars) of the globular cluster Palomar 14 are inconsistent with MOND. Methods: We compare the observations to the theoretical predictions using a Kolmogorov-Smirnov test, which is appropriate for small samples. Results: We find that with the currently available data the MOND prediction for the velocity distribution can only be excluded with a very low confidence level, clearly insufficient to claim that MOND is falsified.",
    author = "G. Gentile and B. Famaey and G. Angus and P. Kroupa",
    year = "2010",
    doi = "10.1051/0004-6361/200913296",
    language = "English",
    volume = "509",
    journal = "Astronomy and Astrophysics",
    issn = "0004-6361",
    publisher = "EDP Sciences",
    number = "1",

    }

    Current data on the globular cluster Palomar 14 are consistent with MOND (Research Note). / Gentile, G.; Famaey, B.; Angus, G.; Kroupa, P.

    In: Astronomy and Astrophysics, Vol. 509, No. 1, A97, 2010.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Current data on the globular cluster Palomar 14 are consistent with MOND (Research Note)

    AU - Gentile, G.

    AU - Famaey, B.

    AU - Angus, G.

    AU - Kroupa, P.

    PY - 2010

    Y1 - 2010

    N2 - Context: Certain types of globular clusters have the very important property that the predictions for their kinematics in the Newtonian and modified Newtonian dynamics (MOND) contexts are divergent. Aims: Here, we advice regarding the recent claim that the stellar kinematics data (using 17 stars) of the globular cluster Palomar 14 are inconsistent with MOND. Methods: We compare the observations to the theoretical predictions using a Kolmogorov-Smirnov test, which is appropriate for small samples. Results: We find that with the currently available data the MOND prediction for the velocity distribution can only be excluded with a very low confidence level, clearly insufficient to claim that MOND is falsified.

    AB - Context: Certain types of globular clusters have the very important property that the predictions for their kinematics in the Newtonian and modified Newtonian dynamics (MOND) contexts are divergent. Aims: Here, we advice regarding the recent claim that the stellar kinematics data (using 17 stars) of the globular cluster Palomar 14 are inconsistent with MOND. Methods: We compare the observations to the theoretical predictions using a Kolmogorov-Smirnov test, which is appropriate for small samples. Results: We find that with the currently available data the MOND prediction for the velocity distribution can only be excluded with a very low confidence level, clearly insufficient to claim that MOND is falsified.

    UR - http://www.scopus.com/inward/record.url?scp=76349099362&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=76349099362&partnerID=8YFLogxK

    U2 - 10.1051/0004-6361/200913296

    DO - 10.1051/0004-6361/200913296

    M3 - Article

    VL - 509

    JO - Astronomy and Astrophysics

    JF - Astronomy and Astrophysics

    SN - 0004-6361

    IS - 1

    M1 - A97

    ER -