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Related papers: Gravitational Focusing of Low-Velocity Dark Matter…

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Direct detection of light dark matter (DM), below the GeV scale, through electron recoil can be efficient if DM has a velocity well above the virial value of $v\sim 10^{-3}$. We point out that if there is a long range attractive force…

High Energy Physics - Phenomenology · Physics 2021-09-14 Hooman Davoudiasl , Peter B. Denton , Julia Gehrlein

We calculate the mass density of the Earth using a Gravito-Electro-Magnetic theory on an extended 5D Schwarzschild-de Sitter metric, in which we define the vacuum. Our results are in very good agreement with that of the Dziewonski-Anderson…

General Relativity and Quantum Cosmology · Physics 2018-02-14 Juan Ignacio Musmarra , Mariano Anabitarte , Mauricio Bellini

We thoroughly explore the cosmic gravitational focusing of cosmic neutrino fluid (C$\nu$F) by dark matter (DM) halo using both general relativity for a point source of gravitational potential and Boltzmann equations for continuous…

High Energy Physics - Phenomenology · Physics 2024-07-08 Shao-Feng Ge , Pedro Pasquini , Liang Tan

Mirror matter type dark matter can exist on the Earth's surface, potentially in enhanced concentrations at various anomalous impact sites. Mirror matter fragments can draw in heat from the ordinary matter environment, radiate mirror photons…

Condensed Matter · Physics 2008-11-26 R. Foot , S. Mitra

We simulate the magnetic feature tracking (MFT) speed using advective-diffusive transport models in both one and two dimensions. By depositing magnetic bipolar regions at different latitudes at the Sun's surface and following their…

Solar and Stellar Astrophysics · Physics 2012-01-24 G. Guerrero , M. Rheinhardt , A. Brandenburg , M. Dikpati

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

Global warming is affecting our Earth's environment. For example, sea level is rising with thermal expansion of water and fresh water input from the melting of continental ice sheets due to human-induced global warming. However, observing…

Geophysics · Physics 2016-11-17 Shuanggen Jin , Liangjing Zhang , Guiping Feng

We show that Global Navigation Satellite Systems (GNSS) and gravimeters on Earth and in space can potentially offer the most accurate direct measurement of local density of near-Earth asteroid-mass Primordial Black Holes (PBHs) and Dark…

Cosmology and Nongalactic Astrophysics · Physics 2024-03-22 Michal Cuadrat-Grzybowski , Sébastien Clesse , Pascale Defraigne , Michel Van Camp , Bruno Bertrand

Owing to the renewed interest in dark matter after the upgrade of the large hadron collider and its dedication to dark matter research it is timely to reassess the whole problem. Considering dark matter is one way to reconcile the…

Astrophysics of Galaxies · Physics 2018-02-06 Werner A. Hofer

We have performed a detailed investigation of geophysical constraints on the possible admixture of mirror matter inside the Earth. On the basis of the Preliminary Reference Earth Model (PREM) -- the `Standard Model' of the Earth's interior…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Yu. Ignatiev , R. R. Volkas

The high speed of light in vacuo together with the weakness of Earth gravity rules out any experimental detection of gravitational deflection of light on the laboratory length scale. Recent advances in coherent optics that produce ultra…

Optics · Physics 2009-11-13 N. Kumar

The peculiar motions of galaxies can be used to infer the distribution of matter in the Universe. It has recently been shown that measurements of the peculiar velocity field indicates an anomalously high bulk flow of galaxies in our local…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Edward Macaulay , Hume A. Feldman , Pedro G. Ferreira , Michael J. Hudson , Richard Watkins

Context: Observations indicate that the `quiet' solar photosphere outside active regions contains considerable amounts of magnetic energy and magnetic flux, with mixed polarity on small scales. The origin of this flux is unclear. Aims: We…

Astrophysics · Physics 2009-11-13 A. Voegler , M. Schuessler

In 2008 a group of NASA scientists reported an anomalous change in the speed of six spacecraft flybys of the Earth. The reported speed change for the NEAR spacecraft flyby is 13.46+-0.01 mm/s. It is known that general relativity theory…

General Physics · Physics 2011-03-01 J. C. Hafele

We present, for the first time, a complete treatment of strongly-interacting dark matter capture in planets, taking Earth as an example. We focus on light dark matter and the heating of Earth by dark matter annihilation, addressing a number…

High Energy Physics - Phenomenology · Physics 2023-09-14 Joseph Bramante , Jason Kumar , Gopolang Mohlabeng , Nirmal Raj , Ningqiang Song

Dark matter particles can be captured by the sun with rates that depend on the dark matter mass and the DM-nucleon cross section. However, for masses below $\sim 3.3$ GeV, the captured dark matter particles evaporate, leading to an…

High Energy Physics - Phenomenology · Physics 2015-10-07 Chris Kouvaris

The surface gravity on Mars is smaller than the surface gravity on Earth, resulting in longer falling times. This effect can be simulated on Earth by taking advantage of air resistance and buoyancy, which cause low density objects to fall…

Physics Education · Physics 2016-02-24 Patrik Pirkola , Patrick B. Hall

It is a well known fact that, in the absence of Dark Matter, the observation of the rotation curves of galaxies cannot be explained in terms of Newtonian gravity. Rotation curves become flat in the outer regions, in contrast to what is…

General Relativity and Quantum Cosmology · Physics 2022-11-01 Matteo Luca Ruggiero , Antonello Ortolan , Clive C. Speake

Based on the Schwarzschild solution of the Einstein equation of gravitational field, it is proved that the speed of light speed would change and isotropy of light speed would be violated in gravitational field with spherical symmetry. On…

General Physics · Physics 2007-05-23 Mei Xiaochun

Detection of the September maximum in the primary near-Earth daemon flux at high (~60o) Northern latitudes by our set-up with a plane horizontal scintillator is plagued by purely geometric factors; indeed, because of the Earth's rotation…

Instrumentation and Methods for Astrophysics · Physics 2010-05-27 E. M. Drobyshevski , M. E. Drobyshevski , V. A. Pikulin
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