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The effect of the expanding universe on planetary motion is considered to first order in the Hubble constant H. Orbital elements are shown to be unaffected, but there is a small change in the connection between planetary proper time and…

广义相对论与量子宇宙学 · 物理学 2007-05-23 A. Lewis Licht

In this paper it is shown that dynamics based on a variation of the gravitational constant $G$ with time solves several puzzling and anomalous features observed, for example the rotation curves of galaxies (attributed to as yet undetected…

综合物理 · 物理学 2009-12-28 B G Sidharth , B S Lakshmi

The data from Pioneer 10 and 11 shows an anomalous, constant, Doppler frequency drift that can be interpreted as an acceleration directed towards the Sun of a_P = (8.74 \pm 1.33) x 10^{-8} cm/s^2. Although one can consider a new physical…

广义相对论与量子宇宙学 · 物理学 2016-12-21 John D. Anderson , Eunice L. Lau , Slava G. Turyshev , Philip A. Laing , Michael Martin Nieto

The anomalous time depending blueshift, the so-called "Pioneer anomaly", that was detected in the radio-metric data from Pioneer 10/11, Ulysses and Galileo spacecraft may not result from a real change of velocity. Rather, the Pioneer…

广义相对论与量子宇宙学 · 物理学 2007-05-23 J. P. Mbelek

It is shown that the same phenomenological Newtonian model recently proposed by the author to explain the cosmological evolution of the fine structure constant suggests furthermore an explanation of the unmodelled acceleration $a_P\simeq…

广义相对论与量子宇宙学 · 物理学 2010-12-17 Antonio F. Ranada

The trajectories of test particles moving in the gravitational field of a non-spherically symmetric mass distribution become affected by the presence of multipole moments. In the case of hyperbolic trajectories, the quadrupole moment of an…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Hernando Quevedo

In the last decades there have been an increasing interest in improving the accuracy of spacecraft navigation and trajectory data. In the course of this plan some anomalies have been found that cannot, in principle, be explained in the…

地球与行星天体物理 · 物理学 2018-05-02 L. Acedo , P. Piqueras , J. A. Moraño

The Pioneer 10 and 11 spacecraft yielded the most precise navigation in deep space to date. These spacecraft had exceptional acceleration sensitivity. However, analysis of their radio-metric tracking data has consistently indicated that at…

We determine here peculiar motion of the Solar system, first time from the $m-z$ Hubble diagram of quasars. Observer's peculiar motion causes a systematic shift in the $m-z$ plane between sources lying along the velocity vector and those in…

宇宙学与河外天体物理 · 物理学 2022-07-14 Ashok K. Singal

Doppler shift observations of spacecraft, such as Galileo, NEAR, Cassini, Rosetta and MESSENGER in earth flybys, have all revealed unexplained speed `anomalies' - that the doppler-shift determined speeds are inconsistent with expected…

综合物理 · 物理学 2008-11-26 Reginald T. Cahill

Analysis of the radio-metric tracking data from the Pioneer 10 and 11 spacecraft at distances between 20--70 astronomical units from the Sun has consistently indicated the presence of an anomalous, small, and constant Doppler frequency…

物理教育 · 物理学 2007-05-23 Slava G. Turyshev , Michael Martin Nieto , John D. Anderson

In 1972 and 1973 the Pioneer 10 and 11 missions were launched. They were the first to explore the outer solar system and achieved stunning breakthroughs in deep-space exploration. But beginning in about 1980 an unmodeled force of \sim 8…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Michael Martin Nieto , John D. Anderson

An observer stationary with respect to comoving coordinates of the expanding universe should find the redshift distribution to be isotropic. However, a peculiar motion of the observer would introduce a dipole anisotropy in the observed…

宇宙学与河外天体物理 · 物理学 2019-07-15 Ashok K. Singal

Peculiar velocities change the expansion rate of any observer moving relative to the smooth Hubble flow. As a result, observers in a galaxy like our Milky Way can experience accelerated expansion within a globally decelerating universe,…

宇宙学与河外天体物理 · 物理学 2011-09-29 Christos G. Tsagas

There is general agreement that the universe began with an "explosion" of matter and energy at a "singularity", the "Big Bang". This paper analyses the mechanics of that beginning and two alternative theories related to it: - The…

综合物理 · 物理学 2007-05-23 Roger Ellman

Hubble's law, which states a linear increase in velocities with distances, can physically be understood in terms of an acceleration cH. This work proposes a connection between this "universal" acceleration seen in the solar system and the…

综合物理 · 物理学 2021-11-09 Y. G. Yi

The Pioneer anomaly is a small sunward anomalous acceleration found in the trajectory analysis of the Pioneer 10 and 11 spacecraft. As part of the investigation of the effect, analysis of recently recovered Doppler data for both spacecraft…

广义相对论与量子宇宙学 · 物理学 2011-08-22 Slava G. Turyshev , Viktor T. Toth , Jordan Ellis , Craig B. Markwardt

According to the cosmological principle, the Universe should appear isotropic, without any preferred directions, to an observer whom we may consider to be fixed in the co-moving co-ordinate system of the expanding Universe. Such an observer…

宇宙学与河外天体物理 · 物理学 2013-06-11 Ashok K. Singal

The anomalous velocity deviation in the osculating planetary flyby attracts enough attention as a problem of General Relativity. In connection of rotating weak field massive source the Lense Thirring metric is diagonalized to find the…

广义相对论与量子宇宙学 · 物理学 2024-11-20 Shubhen Biswas

Applying Newtonian dynamics in five dimensions rather than four, to a universe that is closed, isotropic and expanding,suggests that under certain circumstances an additional and previously unidentified acceleration, a_A, can arise…

广义相对论与量子宇宙学 · 物理学 2010-04-12 M. B. Gerrard , T. J. Sumner