This paper proposes a strategy for detecting the presence of a gravito-magnetic field due to the rotation of the galactic dark halo. Visible matter in galaxies rotates and dark matter, supposed to form a halo incorpo-rating barionic matter, rotates also, since it interacts gravitationally with the rest. Pursuing the same line of reasoning, dark matter should produce all gravitational effects predicted by general relativity, including a gravito-magnetic field. I discuss a possible strategy for measuring that field. The idea recovers the old Sagnac effect and proposes to use a triangle having three Lagrange points of the Sun-Earth pair at its verti-ces. The asymmetry in the times of flight along the loop in opposite directions is proportional to the grav-ito-magnetic galactic field.

Dark angular momentum of the galaxy / Tartaglia, Angelo. - In: INTERNATIONAL JOURNAL OF MODERN PHYSICS D. - ISSN 0218-2718. - STAMPA. - 27:14(2018), pp. 1847012-1-1847012-5. [10.1142/S0218271818470120]

Dark angular momentum of the galaxy

Angelo Tartaglia
2018

Abstract

This paper proposes a strategy for detecting the presence of a gravito-magnetic field due to the rotation of the galactic dark halo. Visible matter in galaxies rotates and dark matter, supposed to form a halo incorpo-rating barionic matter, rotates also, since it interacts gravitationally with the rest. Pursuing the same line of reasoning, dark matter should produce all gravitational effects predicted by general relativity, including a gravito-magnetic field. I discuss a possible strategy for measuring that field. The idea recovers the old Sagnac effect and proposes to use a triangle having three Lagrange points of the Sun-Earth pair at its verti-ces. The asymmetry in the times of flight along the loop in opposite directions is proportional to the grav-ito-magnetic galactic field.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2719290
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