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
收藏
页数：6
相关论文
共 52 条
[1]   A new approach to systematic uncertainties and self-consistency in helium abundance determinations [J].
Aver, Erik ;
Olive, Keith A. ;
Skillman, Evan D. .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2010, (05)
[2]   Stellar mass-to-light ratios and the Tully-Fisher relation [J].
Bell, EF ;
de Jong, RS .
ASTROPHYSICAL JOURNAL, 2001, 550 (01) :212-229
[3]  
Binney J., 2008, Galactic Dynamics, V2, DOI DOI 10.1515/9781400828722
[4]   Gravitational polarization and the phenomenology of MOND [J].
Blanchet, Luc .
CLASSICAL AND QUANTUM GRAVITY, 2007, 24 (14) :3529-3539
[5]   21-CM LINE STUDIES OF SPIRAL GALAXIES .1. OBSERVATIONS OF THE GALAXIES NGC-5033, NGC-3198, NGC-5055, NGC-2841, AND NGC-7331 [J].
BOSMA, A .
ASTRONOMICAL JOURNAL, 1981, 86 (12) :1791-1824
[6]   A STUDY IN BLUE: THE BARYON CONTENT OF ISOLATED LOW-MASS GALAXIES [J].
Bradford, Jeremy D. ;
Geha, Marla C. ;
Blanton, Michael R. .
ASTROPHYSICAL JOURNAL, 2015, 809 (02)
[7]   ROTATION CURVE OF THE EDGE-ON SPIRAL GALAXY NGC-5907 - DISK AND HALO MASSES [J].
CASERTANO, S .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1983, 203 (02) :735-747
[8]   Maximal disks and the Tully-Fisher relation [J].
Courteau, S ;
Rix, HW .
ASTROPHYSICAL JOURNAL, 1999, 513 (02) :561-571
[9]   The Core-Cusp Problem [J].
de Blok, W. J. G. .
ADVANCES IN ASTRONOMY, 2010, 2010
[10]   Does low surface brightness mean low density? [J].
deBlok, WJG ;
McGaugh, SS .
ASTROPHYSICAL JOURNAL, 1996, 469 (02) :L89-L92
123456