MILGROM’S LAW AND Λ’S SHADOW: HOW MASSIVE GRAVITY CONNECTS GALACTIC AND COSMIC DYNAMICS

IF 1.1 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Journal of the Korean Astronomical Society Pub Date : 2015-06-02 DOI:10.5303/JKAS.2015.48.3.191
S. Trippe
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引用次数: 1

Abstract

Massive gravity provides a natural solution for the dark energy problem of cosmology and is also a candidate for resolving the dark matter problem. I demonstrate that, assuming reasonable scaling relations, massive gravity can provide for Milgrom's law of gravity (or "modified Newtonian dynamics") which is known to remove the need for particle dark matter from galactic dynamics. Milgrom's law comes with a characteristic acceleration, Milgrom's constant, which is observationally constrained to a0 ≈ 1.1×10 10 ms 2 . In the derivation presented here, this constant arises naturally from the cosmologically required mass of gravitons like a0 ∝ c √ � ∝ cH0 √ 3�, with �, H0, andbeing the cosmological constant, the Hubble constant, and the third cosmological parameter, respectively. My derivation suggests that massive gravity could be the mechanism behind both, dark matter and dark energy.
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米尔格罗姆定律和Λ的阴影:大质量引力如何连接银河和宇宙动力学
大质量引力为宇宙学的暗能量问题提供了一个自然的解决方案,也是解决暗物质问题的一个候选方案。我证明,假设合理的比例关系,大质量引力可以提供米尔格罗姆引力定律(或“修正牛顿动力学”),该定律被认为从星系动力学中消除了对粒子暗物质的需要。米尔格罗姆定律有一个特征加速度,米尔格罗姆常数,观测约束为a0≈1.1×10 10 ms 2。在这里给出的推导中,这个常数是由宇宙学要求的引力子质量自然产生的,比如a0∝c√∝cH0√3,其中,和分别是宇宙学常数、哈勃常数和第三个宇宙学参数。我的推导表明,巨大的引力可能是暗物质和暗能量背后的机制。
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来源期刊
Journal of the Korean Astronomical Society
Journal of the Korean Astronomical Society 地学天文-天文与天体物理
CiteScore
1.30
自引率
10.00%
发文量
0
审稿时长
>12 weeks
期刊介绍: JKAS is an international scientific journal publishing papers in all fields of astronomy and astrophysics. All manuscripts are subject to the scrutiny of referees. Manuscripts submitted to JKAS must comply with the ethics policy of JKAS. Six regular issues are published each year on February 28, April 30, June 30, August 31, October 31, and December 31. One year''s issues compose one volume.
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