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 language | English |
|---|---|
| Article number | A97 |
| Journal | Astronomy and Astrophysics |
| Volume | 509 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2010 |
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All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
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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 journal › Article
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.
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U2 - 10.1051/0004-6361/200913296
DO - 10.1051/0004-6361/200913296
M3 - Article
AN - SCOPUS:76349099362
VL - 509
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
SN - 0004-6361
IS - 1
M1 - A97
ER -