The Spins of Astrophysical Systems and Extended Gravitational Theory

Details The Spins of Astrophysical Systems and Extended Gravitational Theory The Spins of Astrophysical Systems and Extended Gravitational Theory

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.299..317w&link_type=abstract

Astrophysics and Space Science, Volume 299, Issue 4, pp.317-327

Astronomy and Astrophysics

Astrophysics

1

Angular Momentum, Galaxies, Higher-Dimensional Relativity, Tully-Fisher Relation

Scientific paper

Recent data on the Tully-Fisher relation for spiral galaxies are compatible with the traditional correlation for astrophysical systems, where the angular momentum varies as the square of the mass. Such a correlation is consistent with standard gravitational theory, but is not explained by it. We here show that the noted relation follows from currently popular accounts of extended or higher-dimensional gravitational theory. The latter also predicts that the spins of spirals should decay as the universe expands, which can be tested by extending the Tully-Fisher data to higher redshifts.

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