FLUX ENHANCEMENT OF SLOW-MOVING PARTICLES BY SUN OR JUPITER: CAN THEY BE DETECTED ON EARTH?

@article{Patla2013FLUXEO,
  title={FLUX ENHANCEMENT OF SLOW-MOVING PARTICLES BY SUN OR JUPITER: CAN THEY BE DETECTED ON EARTH?},
  author={Bijunath R. Patla and Robert J. Nemiroff and Dieter H. H. Hoffmann and Konstantin Zioutas},
  journal={The Astrophysical Journal},
  year={2013},
  volume={780},
  pages={158}
}
Slow-moving particles capable of interacting solely with gravity might be detected on Earth as a result of the gravitational lensing induced focusing action of the Sun. The deflection experienced by these particles is inversely proportional to the square of their velocities, and as a result their focal lengths will be shorter. We investigate the velocity dispersion of these slow-moving particles, originating from distant point-like sources, for imposing upper and lower bounds on the velocities… 

Figures and Tables from this paper

Is the effect of the Sun's gravitational potential on dark matter particles observable?
We consider the effect of the Sun's gravitational potential on the local phase space distribution of dark matter particles, focusing on its implication for the annual modulation signal in direct
Solar Oscillations and the Orbital Invariant Inequalities of the Solar System
Gravitational planetary lensing of slow-moving matter streaming towards the Sun was suggested to explain puzzling solar-flare occurrences and other unexplained solar-emission phenomena (Bertolucci et
Searching for axion stars and Q -balls with a terrestrial magnetometer network
Light (pseudo-)scalar fields are promising candidates to be the dark matter in the Universe. Under certain initial conditions in the early Universe and/or with certain types of self-interactions,
Trajectory bending and gravitational lensing of massive particles in Schwarzschild gravity
Both massless light ray and objects with nonzero mass experience trajectory bending in a gravitational field. In this work the bending of trajectories of massive objects in a Schwarzschild spacetime
The Dark Universe Is Not Invisible
Evidence of dark matter (DM) comes from long-range gravitational observations, where it is understood actually to not interact with ordinary matter. However, on a much smaller scale, a number of
Gravitationally trapped axions on the Earth
We advocate for the idea that there is a fundamentally new mechanism for axion production on Earth, as recently suggested in Fischer et al. (2018) and Liang & Zhitnitsky (2018). We specifically focus
Gravitational focusing of Imperfect Dark Matter
Motivated by the projectable Horava--Lifshitz model/mimetic matter scenario, we consider a particular modification of standard gravity, which manifests as an imperfect low pressure fluid. While
Gravitational Focusing of Low-Velocity Dark Matter on the Earth’s Surface
We show that the Earth acts as a high-efficiency gravitational collector of low-velocity flow of dark matter (DM). The focal point appears on the Earth’s surface, when the DM flow speed is about 17
Distinguishing rotating naked singularities from Kerr-like wormholes by their deflection angles of massive particles
We study the gravitational deflection of relativistic massive particles by Janis–Newman–Winicour (JNW) spacetimes (also known as a rotating source with a surface-like naked singularity), and a
...
...

References

SHOWING 1-10 OF 42 REFERENCES
Gravitational Microlensing in the Local Group
▪ Abstract The status of searches for gravitational microlensing events of the stars in our galaxy and in other galaxies of the Local Group, the interpretation of the results, some theory, and
Cosmological Applications of Gravitational Lensing
The discovery by Walsh et al (1979) of the first bona fide gravitational lens, the doubly-imaged quasar, Q0957 + 561, happened at an opportune time, following several prescient theoretical papers,
Gravitational Lensing Characteristics of the Transparent Sun
The transparent Sun is modeled as a spherically symmetric and centrally condensed gravitational lens using recent standard solar model (SSM) data. The Sun's minimum focal length is computed to a
Solar wakes of dark matter flows
We analyze the effect of the Sun's gravitational field on a flow of cold dark matter (CDM) through the solar system in the limit where the velocity dispersion of the flow vanishes. The exact density
A Determination of the Deflection of Light by the Sun's Gravitational Field, from Observations Made at the Total Eclipse of May 29, 1919
1. The purpose of the expeditions was to determine what effect, if any, is produced by a gravitational field on the path of a ray of light traversing it. Apart from possible surprises, there appeared
Cosmic String Wakes
Accretion of matter onto wakes left behind by horizon-sized pieces of cosmic string is investigated, and the effects of wakes on the large-scale structure of the universe are determined. Accretion of
The Uniform Transparent Gravitational Lens
An elementary discussion is given of the gravitational deflection of light due to radially and cylindrically symmetric masses. The effect of the deflection on apparent luminosity of distant sources
The MACHO Project: Microlensing Results from 5.7 Years of Large Magellanic Cloud Observations
We report on our search for microlensing toward the Large Magellanic Cloud (LMC). Analysis of 5.7 yr of photometry on 11.9 million stars in the LMC reveals 13-17 microlensing events. A detailed
Gravitational lensing and structural stability of dark matter caustic rings
In a cold dark matter (CDM) paradigm, density perturbations enter the nonlinear regime of structure formation where shell crossings occur, and caustics form. A dark matter caustic is generically a
...
...