Can the Blackett Conjecture Directly Account for the Magnetic Fields of Celestial Bodies and Galaxies? And, is a Lab-based Test for the Blackett Conjecture Feasible?

  • L. Campanelli All Saints University, Toronto, Canada

Abstract

According to the Blackett conjecture, any neutral rotating body acquires a magnetic moment proportional to its angular momentum. Using the data on the dipolar magnetic field of Mars, we put a stringent upper limit on the value of the Blackett's constant, the dimensionless constant that relates the magnetic moment to the angular momentum. As a consequence, the Blackett effect cannot directly account for the magnetic fields of celestial bodies and galaxies. We also show that the Blackett effect cannot be tested in a laboratory since the magnetic moment of any rotating lab-scale object would be much smaller than the one produced by the well-known Barnett effect.

Published
Jul 14, 2022
How to Cite
CAMPANELLI, L.. Can the Blackett Conjecture Directly Account for the Magnetic Fields of Celestial Bodies and Galaxies? And, is a Lab-based Test for the Blackett Conjecture Feasible?. Revista Cubana de Física, [S.l.], v. 39, n. 1, p. 4-7, july 2022. ISSN 2224-7939. Available at: <https://revistacubanadefisica.org/index.php/rcf/article/view/2022v39p004>. Date accessed: 11 aug. 2022.
Section
Original Articles