Radial Acceleration Relation in Rotationally Supported Galaxies

被引：425

作者：

McGaugh, Stacy S. ^{[1
]}

Lelli, Federico ^{[1
]}

Schombert, James M. ^{[2
]}

机构：

[1] Case Western Reserve Univ, Dept Astron, 10900 Euclid Ave, Cleveland, OH 44106 USA

[2] Univ Oregon, Dept Phys, Eugene, OR 97403 USA

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 20期

基金：

美国国家航空航天局;

关键词：

SURFACE BRIGHTNESS GALAXIES; MODIFIED NEWTONIAN DYNAMICS; DARK-MATTER; SPIRAL GALAXIES; STELLAR MASS; LAMBDA-CDM; DISK; LIGHT; CURVES; COLOR;

D O I：

10.1103/PhysRevLett.117.201101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a correlation between the radial acceleration traced by rotation curves and that predicted by the observed distribution of baryons. The same relation is followed by 2693 points in 153 galaxies with very different morphologies, masses, sizes, and gas fractions. The correlation persists even when dark matter dominates. Consequently, the dark matter contribution is fully specified by that of the baryons. The observed scatter is small and largely dominated by observational uncertainties. This radial acceleration relation is tantamount to a natural law for rotating galaxies.

引用

页数：6

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