中文
相关论文

相关论文: Dark Matter, Mass Scales Sequence, and Superstruct…

200 篇论文

From the observed results of the space distribution of quasars we deduced that neutrino mass is about10^(-1) eV. The fourth stable elementary particle (delta particle) with mass about 10^(0) eV can help explain the energy resource mechanism…

综合物理 · 物理学 2024-01-30 Xiaodong Huang , Wuliang Huang

Since there are dark matter particles (neutrino) with mass about 10^(-1)eV in the universe, the superstructures with a scale of 10^(19) solar mass [large number A is about 10^(19)] appeared around the era of the hydrogen recombination. The…

天体物理学 · 物理学 2016-09-14 Wuliang Huang , Xiaodong Huang

We discuss the relationship between dark matter and the entropy of the universe with the premise that dark matter exists in the form of primordial black holes (PBHs) in a hierarchy of mass tiers. The lightest tier are intermediate-mass…

星系天体物理 · 物理学 2022-09-07 Paul H Frampton

The evolution of matter density perturbations in two-component model of the Universe consisting of dark energy (DE) and dust-like matter (M) is considered. We have analyzed it for two kinds of DE with $\omega\ne -1$: a) unperturbed energy…

天体物理学 · 物理学 2007-05-23 Yu. Kulinich , B. Novosyadlyj

We investigate the non-linear evolution of spherical density and velocity perturbations of dark matter and dark energy in the expanding Universe. For that we have used the conservation and Einstein equations to describe the evolution of…

宇宙学与河外天体物理 · 物理学 2020-08-04 M. Tsizh , B. Novosyadlyj

For the first time, we have a plausible, complete accounting of matter and energy in the Universe. Expressed a fraction of the critical density it goes like this: neutrinos, between 0.3% and 15%; stars, 0.5%; baryons (total), 5%; matter…

天体物理学 · 物理学 2007-05-23 Michael S. Turner

The evolution of dark matter in central areas of galaxies is considered (the Milky Way is taken as an example). It is driven by scattering off of dark matter particles by bulge stars, their absorption by the supermassive black hole and…

天体物理学 · 物理学 2008-11-26 Eugene Vasiliev , Maxim Zelnikov

For the first time, we have a plausible and complete accounting of matter and energy in the Universe. Expressed a fraction of the critical density it goes like this: neutrinos, between 0.3% and 15%; stars, between 0.3% and 0.6%; baryons…

天体物理学 · 物理学 2009-10-31 Michael S. Turner

Over the past three years we have determined the basic features of the Universe -- spatially flat; accelerating; comprised of 1/3 a new form of matter, 2/3 a new form of energy, with some ordinary matter and a dash of massive neutrinos; and…

天体物理学 · 物理学 2009-11-07 Michael S. Turner

The dark sector of the Universe is beginning to be clarified step by step. If the dark energy is vacuum energy, then 123 orders are exactly reduced by ordinary physical processes. For many years these unexplained orders were called a crisis…

综合物理 · 物理学 2017-05-31 Vladimir Burdyuzha

We propose a simple model in which the cosmological dark matter consists of particles whose mass increases with the scale factor of the universe. The particle mass is generated by the expectation value of a scalar field which does not have…

天体物理学 · 物理学 2016-10-26 Greg W. Anderson , Sean M. Carroll

Over the past three years we have determined the basic features of our Universe. It is spatially flat; accelerating; comprised of 1/3 a new form of matter, 2/3 a new form of energy, with some ordinary matter and a dash of massive neutrinos;…

天体物理学 · 物理学 2008-11-26 Michael S. Turner

The accumulation of dark matter particles near the primordial black holes starts at the radiation-dominated cosmological stage and produces the central density spikes. The spikes can be the bright gamma-ray sources due to dark matter…

宇宙学与河外天体物理 · 物理学 2020-04-02 Yu. N. Eroshenko

How much dark matter is there in the universe and where is it located? These are two of the most fundamental questions in cosmology. We use in this paper optical and x-ray mass determinations of galaxies, groups, and clusters of galaxies to…

天体物理学 · 物理学 2009-10-28 Neta A. Bahcall , Lori M. Lubin , Victoria Dorman

How is mass distributed in the Universe? How does it compare with the distribution of light and stars? We address these questions by examining the distribution of mass, determined from weak lensing observations, and starlight, around…

宇宙学与河外天体物理 · 物理学 2014-04-29 Neta A. Bahcall , Andrea Kulier

Small-scale clumps of dark matter are gravitationally bounded structures that have masses comparable to or lower than stellar masses and consist of noninteracting or weakly interacting dark matter particles. In this paper, the current…

高能天体物理现象 · 物理学 2014-05-12 V. S. Berezinsky , V. I. Dokuchaev , Yu. N. Eroshenko

The quantum model of the homogeneous, isotropic, and spatially closed universe predicts an existence of two types of collective quantum states in the universe. The states of one type characterize a gravitational field, the others describe a…

天体物理学 · 物理学 2007-05-23 V. E. Kuzmichev , V. V. Kuzmichev

A short story of dark matter as an example of a scientific revolution is given. The characteristics of stellar populations are compared with those of dark halos. The mean mass-to-luminosity ratio of stellar populations is found to be 4 in…

天体物理学 · 物理学 2007-05-23 J. Einasto , M. Einasto

One of the principal discoveries in modern cosmology is that standard model particles (including baryons, leptons and photons) together comprise only 5% of the mass-energy budget of the Universe. The remaining 95% consists of dark energy…

宇宙学与河外天体物理 · 物理学 2014-03-04 Andrew Pontzen , Fabio Governato

Dark matter can be captured by celestial objects and accumulate at their centers, forming a core of dark matter that can collapse to a small black hole, provided that the annihilation rate is small or zero. If the nascent black hole is big…

高能物理 - 唯象学 · 物理学 2021-05-13 Javier F. Acevedo , Joseph Bramante , Alan Goodman , Joachim Kopp , Toby Opferkuch
‹ 上一页 1 2 3 10 下一页 ›