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Related papers: Novel Dark Matter Signatures

200 papers

Motivated by the observed cosmic matter distribution, we present the following conjecture: due to the formation of voids and opaque structures, the average matter density on the path of the light from the well-observed objects changes from…

Astrophysics · Physics 2010-02-23 Teppo Mattsson

We propose a unified framework that reconciles the stunning success of MOND on galactic scales with the triumph of the LambdaCDM model on cosmological scales. This is achieved through the physics of superfluidity. Dark matter consists of…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-17 Lasha Berezhiani , Justin Khoury

Empirical theories of Dark Matter like MOND gravity and of Dark Energy like f(R) gravity were motivated by astronomical data. But could these theories be branches rooted from a more general hence natural framework? Here we propose the…

Astrophysics · Physics 2015-05-13 HongSheng Zhao , Baojiu Li

The minimum testable dark matter (DM) mass for almost all DM signatures in celestial bodies is determined by the rate at which DM evaporates. DM evaporation has previously been calculated assuming a competition between the gravitational…

High Energy Physics - Phenomenology · Physics 2024-06-05 Javier F. Acevedo , Rebecca K. Leane , Juri Smirnov

The galactic `dark matter' effect is regarded as one of the major problems in fundamental physics. Here it is explained as a self-interaction dynamical effect of space itself, and so is not caused by an unknown form of matter. Because it…

General Physics · Physics 2007-05-23 Reginald T. Cahill

Although various pieces of indirect evidence about the nature of dark matter have been collected, its direct detection has eluded experimental searches despite extensive effort. If the mass of dark matter is below 1 MeV, it is essentially…

Quantum Physics · Physics 2013-12-16 C. Jess Riedel

The dark matter subhalos orbiting in a galactic halo perturb the orbits of stars in thin stellar streams. Over time the random velocities in the streams develop non-Gaussian wings. The rate of velocity increase is approximately a random…

Astrophysics of Galaxies · Physics 2024-08-19 Raymond G. Carlberg , Adrian Jenkins , Carlos S. Frenk , Andrew P. Cooper

Cosmological implications of the observed large-scale peculiar velocities are reviewed, alone or combined with redshift surveys and CMB data. The latest version of the POTENT method for reconstructing the underlying three-dimensional…

Astrophysics · Physics 2007-05-23 Avishai Dekel

Dark matter (DM) annihilations in the Galaxy may produce high energy neutrinos, which can be detected by the neutrino telescopes, for example IceCube, ANTARES and Super-Kamiokande. The neutrinos can also arise from hadronic interaction…

Astrophysics · Physics 2009-11-13 Peng-fei Yin , Jia Liu , Qiang Yuan , Xiao-jun Bi , Shou-hua Zhu

With a probability >99% there are grounds to believe that our works on detection of the Dark Electric Matter Objects (daemons), which were lauched in 1996, are crowned with success. The daemons are the relic elementary Planckian black…

Astrophysics · Physics 2008-11-26 E. M. Drobyshevski , M. E. Drobyshevski , T. Yu. Izmodenova , D. S. Telnov

The traditional "explanation" for the observed acceleration of the universe is the existence of a positive cosmological constant. However, this can hardly be a truly convincing explanation, as an expanding universe is not expected to have a…

General Relativity and Quantum Cosmology · Physics 2015-06-22 Joan Sola

The observed excess of gravitational forces in galaxies and galactic clusters is usually referred as the existence of "dark matter particles" of unknown origin. An alternative explanation of the dark matter effect is presented here by…

Cosmology and Nongalactic Astrophysics · Physics 2011-10-04 Arkady Z. Dolginov

Two exotic elements have been introduced into the standard cosmological model: non-baryonic dark matter and dark energy. The success in converting a hypothesis into a solid theory depends strongly on whether we are able to solve the…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-08 Martin Lopez-Corredoira

Within the dark matter paradigm, explaining observed orbital dynamics at galactic level through the inclusion of a dominant dark halo, implies also the necessary appearance of dynamical friction effects. Satellite galaxies, globular…

Astrophysics of Galaxies · Physics 2019-02-28 X. Hernandez

The standard cosmological model is based on general relativity and includes dark matter and dark energy. An important prediction of this model is a fixed relationship between the gravitational potentials responsible for gravitational…

Astrophysics · Physics 2008-11-26 Pengjie Zhang , Michele Liguori , Rachel Bean , Scott Dodelson

Two forms are suggested for the energy-momentum source term associated with an aggregate of dark matter (with the properties described in Paper I). Both have large pressure-like components which dominate the density terms. Using one form a…

General Relativity and Quantum Cosmology · Physics 2020-01-20 H. L. Helfer

I briefly review our current understanding of dark matter and dark energy. The first part of this paper focusses on issues pertaining to dark matter including observational evidence for its existence, current constraints and the `abundance…

Astrophysics · Physics 2022-07-19 Varun Sahni

(Abridged) Fundamental tensions between observations and dark-matter based cosmological models have emerged. This updated review has two purposes: to explore new tensions that have arisen in recent years, compounding the unresolved tensions…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-27 Pavel Kroupa , Eda Gjergo , Elena Asencio , Moritz Haslbauer , Jan Pflamm-Altenburg , Nils Wittenburg , Nick Samaras , Ingo Thies , Wolfgang Oehm

We show that some primary special relativity effects, which are believed to be hardly detectable in everyday life, such as time dilation, relativistic Doppler effect, and length contraction, should tangibly and spectacularly show up here on…

General Physics · Physics 2022-04-12 Germano D'Abramo

The last decade has shown a considerable development of gravitational lensing for cosmology because it probes the amount and the nature of dark matter, and provides information on the density parameter $\Omega$, the cosmological constant…

Astrophysics · Physics 2007-05-23 Y. Mellier , F. Bernardeau , L. van Waerbeke
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