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Effet Doppler appliqué aux objets célestes. Une nouvelle approche

Author:

Fossat, Simon

Category:

Research Papers

Sub-Category:

Relativity Theory

Language:

French

Date Published:

April 1, 2025

File:

/Research Papers-Relativity Theory/Download/10134

Downloads:

Keywords:

Doppler, relativité, Fond diffus cosmologique, loi de Hubble

Abstract:

Le but de cette étude est de reconsidérer les vitesses des objets célestes à partir d’une approche de l’effet Doppler basée sur l’existence du Fond Diffus Cosmologique. La formule conséquente permet en effet d’introduire par le calcul une composante tangentielle aux vitesses des étoiles et des galaxies. Nous qualifierons d’abord cette formule à partir d’étoiles de la Voie lactée au voisinage du système solaire et dont les paramètres sont bien connus (vitesse radiale, mouvement propre, distance, Redshift). Nous établirons ensuite des scénarios à partir desquels nous estimerons, pour les objets extragalactiques, des paramètres supplémentaires à ceux déjà connus. Ces considérations nous amèneront à de nouvelles hypothèses sur la trame d’expansion à l’échelle cosmique, notamment déterminée par la loi de Hubble.

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