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200 papers

Observing the Rossiter-McLaughlin effect during a planetary transit allows the determination of the angle $\lambda$ between the sky projections of the star's spin axis and the planet's orbital axis. Such observations have revealed a large…

Earth and Planetary Astrophysics · Physics 2021-10-04 Simon H. Albrecht , Marcus L. Marcussen , Joshua N. Winn , Rebekah I. Dawson , Emil Knudstrup

The recent paper published in European Journal of Physics [1] aimed to demonstrate the kinematical and dynamical equivalence of heliocentric and geocentric systems. The work is performed in the Neo-Tychonian system, with key assumption that…

Classical Physics · Physics 2013-03-01 Luka Popov

In the linear theory, the galaxy angular momentum vectors which originate from the initial tidal interactions with surrounding matter distribution intrinsically develop perpendicular alignments with the directions of maximum matter…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-02 Jounghun Lee , Jun-Sung Moon

A widely considered characteristic of extra-solar planetary systems has been a seeming tendency for major axes of adjacent orbits to librate in stable configurations. Based on a new catalog of extra-solar planets (Butler et al. 2006) and…

Astrophysics · Physics 2009-11-11 Rory Barnes , Richard Greenberg

Equations of motion, in cylindrical co-ordinates, for the observed rotation of gases within the gravitational potential of spiral galaxies have been derived from Carmeli's Cosmological General Relativity theory. A Tully-Fisher type relation…

Astrophysics · Physics 2007-05-23 John G. Hartnett

This paper given at the meeting on "Mapping, Measuring and Modelling the Universe" presents three topics: 1) the study of the clusters and groups of galaxies found serendipitously in the North Ecliptic Pole (NEP) region of the ROSAT all-sky…

Astrophysics · Physics 2007-05-23 Isabella M. Gioia

This article starts with the mathematical definition, concrete description, and physical meaning of Cartan's torsion. I proceed with the argumentation that torsion is required for the description of intrinsic spin. Moreover I argue that the…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Rainer W. Kuhne

The cosmological models in the frame of the Newtonian and general relativistic treatments are considered. The centrifugal forces acting between particles rotating randomly around each other are shown to be able to reverse gravitational…

General Physics · Physics 2008-07-31 I. S. Nurgaliev

Observational studies have reported that cosmic filaments on the megaparsec scale exhibit rotational motion. Subsequent simulation studies have shown qualitative agreement with these findings, but quantitative discrepancies remain due to…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-07 Peng Wang , Xiao-Xiao Tang , Hao-Da Wang , Noam I. Libeskind , Elmo Tempel , Wei Wang , Youcai Zhang , Ming-Jie Sheng , Hao-Ran Yu , Haojie Xu

It is shown that the number of members, $N_A$, and the linear radius of the Abell clusters at $z<0.18$ increase with redshift. The increase is caused by observational selection: the number of rich and large clusters is small in the nearby…

Astrophysics · Physics 2007-05-23 Hrant M. Tovmassian

Modern cosmology rests on the cosmological principle, that on large enough scales the Universe is both homogeneous and isotropic. A corollary is that galaxies' spin vectors should be isotropically distributed on the sky. This has been…

Astrophysics of Galaxies · Physics 2025-03-03 Dhruva Patel , Harry Desmond

Celestial holography has led to the discovery of new symmetry algebras arising from the study of collinear limits of perturbative gravity amplitudes in flat space. We explain from the twistor perspective how a non-vanishing cosmological…

High Energy Physics - Theory · Physics 2024-03-28 Roland Bittleston , Giuseppe Bogna , Simon Heuveline , Adam Kmec , Lionel Mason , David Skinner

We specify the four kinds of rotational cosmologies that are avaliable in Theoretical Cosmology. NASA spacecrafts has suffered from three anomalies. The Pioneers spacecrafts were decelerated, and their spin when not disturbed, was…

General Physics · Physics 2017-07-26 Marcelo Samuel Berman , Fernando de Mello Gomide

We present an alternate origin scenario to explain the observed phenomena of (1) counter-rotation between different galaxy components and (2) the formation of ring galaxies. We suggest that these are direct consequences of the galaxy being…

Astrophysics of Galaxies · Physics 2016-06-15 N. G. Kantharia

Galactic orbits have been constructed over long time intervals for ten globular clusters located near the Galactic center. A model with an axially symmetric gravitational potential for the Galaxy was initially applied, after which a…

Astrophysics of Galaxies · Physics 2017-05-16 V. V. Bobylev , A. T. Bajkova

We discover alignment of galaxies in clusters by analyzing the distribution of their position angles. We assume that galaxies are aligned, if their number at one 90deg position angle interval is more than twice higher than at another 90deg…

Astrophysics of Galaxies · Physics 2019-10-08 Hrant M. Tovmassian , J. P. Torres-Papaqui

Using the Horizon-AGN simulation we find a mass dependent spin orientation trend for galaxies: the spin of low-mass, rotation-dominated, blue, star-forming galaxies are preferentially aligned with their closest filament, whereas high-mass,…

Astrophysics of Galaxies · Physics 2017-02-15 charlotte Welker , Yohan Dubois , Julien Devriendt , Christophe Pichon , Sebastien Peirani

Measurements of the polarization angle and orientation of cosmological radio sources may be used to search for unusual effects in the propagation of light through the universe. Recently, Nodland and Ralston (astro-ph/9704196) have claimed…

Astrophysics · Physics 2009-10-30 Sean M. Carroll , George B. Field

Peculiar velocities are the motions of galaxies due to the gravitational influence of large-scale structure, and thus are an important cosmological probe of the underlying matter density field. In recent years the number of surveys designed…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-19 Ryan J. Turner

Observational constraints on planet spin-axis has recently become possible, and revealed a system that favors a large spin-axis misalignment, a low stellar spin-orbit misalignment and a high eccentricity. To explain the origin of such…

Earth and Planetary Astrophysics · Physics 2021-07-07 Gongjie Li