A common Milgromian acceleration scale in nature
A common Milgromian acceleration scale in nature
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自然界中常见的米尔格罗米加速尺度
DOI:
10.1038/s41550-018-0622-x
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发表时间:
2018-11
期刊:
影响因子:
14.1
通讯作者:
Hongsheng Zhao
中科院分区:
文献类型:
--
作者:
Pavel Kroupa;Indranil Banik;Hosein Haghi;AkramHasani Zonoozi;Joerg Dabringhausen;Behnam Javanmardi;Oliver Mueller;Xufen Wu;Hongsheng Zhao
To the Editor—A central problem of contemporary physics is whether the law of gravity is non-Newtonian on galactic scales. Rodrigues et al. 1 argue that Milgromian gravitation 2, which solves the flat rotation curve problem without the need for dark matter particles, is ruled out at> 10σ significance. To a large extent, this conclusion relies on galaxies with very uncertain distances and/or nearly edge-on orientations, where dust obscuration often becomes significant. Applying appropriate quality cuts to the data leaves only a handful of outliers to the predictions of Milgromian gravitation according to the analysis of Rodrigues et al. 1, but even these outliers can be explained with Milgromian gravitation. Milgromian gravitation (MOND) is a classical theory of gravitation with a nonlinear generalized Poisson equation derivable from a Lagrangian 3. In MOND, only the distribution of standard (luminous) matter acts as the source of the gravitational potential. To a Newtonian observer, this potential implies a dark matter halo. In regions where the acceleration is below the critical scale of Milgrom’s constant a0= 1.2× 10–10 ms–2≈ 3.6 pc Myr–2, the equations of motion behave, possibly due to the quantum vacuum 4, as if the system was Newtonian but with a dark matter content, elegantly solving the so-called dark matter problem. Rodrigues et al. 1 analyse high-quality rotation curves of 100 galaxies and fit a Milgromian acceleration scale, g0, to each individually. They argue that the observed dispersion in g0 is inconsistent with a single value equal to a0 with> 10σ significance, therewith falsifying MOND. Importantly, Rodrigues et al. 1 do not take into account inclination uncertainties. Figure 1 demonstrates that fixing g0 to the MOND standard value of a0 implies inclinations consistent with the observations within uncertainties.
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影响因子:
4.9
作者:
BEKENSTEIN, J;MILGROM, M
通讯作者:
MILGROM, M
影响因子:
14.1
作者:
D. Rodrigues;V. Marra;A. Del Popolo;Zahra Davari
通讯作者:
D. Rodrigues;V. Marra;A. Del Popolo;Zahra Davari
影响因子:
4.8
作者:
H. Haghi;A. Bazkiaei;A. H. Zonoozi;P. Kroupa
通讯作者:
H. Haghi;A. Bazkiaei;A. H. Zonoozi;P. Kroupa
影响因子:
64.8
作者:
M. Disney;J. D. D. Romano-J.-D.-D.-Romano-2287019984;J. D. D. Romano-J.-D.-D.-Romano-2287019984;D. Garcia-Appadoo;D. Garcia-Appadoo;Andrew A. West;Andrew A. West;Julianne J. Dalcanton;Luca Cortese
通讯作者:
M. Disney;J. D. D. Romano-J.-D.-D.-Romano-2287019984;J. D. D. Romano-J.-D.-D.-Romano-2287019984;D. Garcia-Appadoo;D. Garcia-Appadoo;Andrew A. West;Andrew A. West;Julianne J. Dalcanton;Luca Cortese
DOI:
10.1088/0004-637x/718/1/380
发表时间:
2010-05
期刊:
The Astrophysical Journal
影响因子:
--
作者:
R. Swaters;R. Sanders;S. McGaugh
通讯作者:
R. Swaters;R. Sanders;S. McGaugh