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The Galaxy is conventionally thought to be surrounded by a massive dark matter (DM) halo. As the Sun goes through this halo, it excites a DM wake behind it. This local asymmetry in the DM distribution would gravitationally affect the…

地球与行星天体物理 · 物理学 2019-07-17 Indranil Banik , Pavel Kroupa

We have searched for and estimated the possible gravitational influence of dark matter in the Solar system based on the EPM2011 planetary ephemerides using about 677 thousand positional observations of planets and spacecraft. Most of the…

地球与行星天体物理 · 物理学 2013-06-25 N. P. Pitjev , E. V. Pitjeva

The high precision of the latest version of the planetary ephemeris EPM2011 enables one to explore more accurately a variety of small effects in the solar system. The processing of about 678 thousand of position observations of planets and…

地球与行星天体物理 · 物理学 2013-06-14 E. V. Pitjeva , N. P. Pitjev

We apply our recent results on orbital dynamics around a mass-varying central body to the phenomenon of accretion of Dark Matter-assumed not self-annihilating-on the Sun and the major bodies of the solar system due to its motion throughout…

广义相对论与量子宇宙学 · 物理学 2012-07-31 Lorenzo Iorio

In this paper we explicitly work out the effects that a spherically symmetric distribution of dark matter with constant density would induce on the Keplerian orbital elements of the Solar System planets and compare them with the latest…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Lorenzo Iorio

We investigated the influence of dark matter on light propagation in the solar system. We assumed the spherical symmetry of spacetime and derived the approximate solution of the Einstein equation, which consists of the gravitational…

天体物理学 · 物理学 2012-02-07 Hideyoshi Arakida

We determine the density and mass distribution of dark matter within our Solar System. We explore the three-body interactions between dark matter particles, the Sun, and the planets to compute the amount of dark matter gravitationally…

天体物理学 · 物理学 2008-06-25 X. Xu , E. R. Siegel

High precision planet orbital data extracted from direct observation, spacecraft explorations and laser ranging techniques enable to put a strong constraint on the maximal dark matter density of a spherical halo centered around the Sun. The…

天体物理学 · 物理学 2008-11-26 J. -M. Frère , F. -S. Ling , G. Vertongen

The Sun is not quite a perfect sphere, and its oblateness, thought to be induced through its rotation, has been measured using optical observations of its radius. Its gravitational quadrupole moment can then be deduced using solar models,…

高能物理 - 唯象学 · 物理学 2025-04-10 Gustavo F. S. Alves , Susan Gardner , Pedro Machado , Mohammadreza Zakeri

Saturn's C ring contains multiple structures that appear to be density waves driven by time-variable anomalies in the planet's gravitational field. Semi-empirical extensions of density wave theory enable the observed wave properties to be…

地球与行星天体物理 · 物理学 2022-01-24 M. M. Hedman , P. D. Nicholson , M. El Moutamid , S. Smotherman

As dark matter appears to comprise most of the Galactic mass, some of it may accumulate in the cores of stars, thereby making the Sun a laboratory for constraining various dark matter theories. We consider the effects on the solar structure…

太阳与恒星天体物理 · 物理学 2025-05-06 Earl Patrick Bellinger , Matt E. Caplan

We study the capture of galactic dark matter particles in the Solar System produced by rotation of Jupiter. It is shown that the capture cross section is much larger than the area of Jupiter orbit being inversely diverging at small particle…

地球与行星天体物理 · 物理学 2013-02-26 J. Lages , D. L. Shepelyansky

Dark matter or modifications of the Newtonian inverse-square law in the solar-system are studied with accurate planetary astrometric data. From extra-perihelion precession and possible changes in the third Kepler's law, we get an upper…

天体物理学 · 物理学 2009-11-11 M. Sereno , Ph. Jetzer

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…

星系天体物理 · 物理学 2019-02-28 X. Hernandez

Dark matter (DM) within the solar system induces deviations in the geodetic drift of gyroscope spin due to its gravitational interaction. Assuming a constant DM density as a minimal scenario, we constrain DM overdensity within the Gravity…

高能物理 - 唯象学 · 物理学 2024-12-13 Sara Rufrano Aliberti , Gaetano Lambiase , Tanmay Kumar Poddar

We derive purely gravitational constraints on dark matter and cosmic neutrino profiles in the solar system using asteroid (101955) Bennu. We focus on Bennu because of its extensive tracking data and high-fidelity trajectory modeling…

高能物理 - 唯象学 · 物理学 2024-03-11 Yu-Dai Tsai , Joshua Eby , Jason Arakawa , Davide Farnocchia , Marianna S. Safronova

Plasma rotation plays a large role in determining the size and shape of Saturn's disc-like magnetosphere. A magnetosphere more confined to the equator in the polar regions is expected as a result of the interaction between this type of…

On the scales of galaxies and beyond there is evidence for unseen dark matter. In this paper we find the experimental limits to the density of dark matter bound in the solar system by studying its effect upon planetary motion.

天体物理学 · 物理学 2009-10-28 Øyvind Grøn , Harald H. Soleng

Dark matter could be captured in the Sun and self-annihilate, giving rise to an observable neutrino flux. Indirect searches for dark matter looking for this signal with neutrino telescopes have resulted in tight constraints on the…

高能天体物理现象 · 物理学 2014-06-03 Koun Choi , Carsten Rott , Yoshitaka Itow

We present the recent robust determination of the value of the Dark Matter density at the Sun's location ($\rho_\odot$) with a technique that does not rely on a global mass-modeling of the Galaxy. The method is based on the local equation…

宇宙学与河外天体物理 · 物理学 2012-12-18 Fabrizio Nesti , Paolo Salucci
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