Würzburg 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
GR: Fachverband Gravitation und Relativitätstheorie
GR 4: Gravitational waves II
GR 4.4: Vortrag
Dienstag, 20. März 2018, 17:30–17:50, Phys-SR-SE1
Astrophysical Gravitational Waves in Conformal Gravity — •Patric Hölscher1, Chiara Caprini2, and Dominik Schwarz1 — 1Bielefeld University, Germany — 2Laboratoire Astroparticule et Cosmologie, Paris, France
We investigate gravitational radiation from binary systems in Conformal Gravity (CG) and Massive Conformal Gravity (MCG). These theories have achieved interesting results, like fitting galaxy rotation curves without dark matter.
For the linearised theory it turns out that the metric is given by the sum of a massless and a massive spin-2 field. Calculating the decay of the orbital period of binary systems for different mass regimes, our results show that CG and MCG with a small mass for the massive spin-2 field cannot explain the decay of the orbital period via gravitational radiation. But for MCG in the case of a large mass, the decrease of the orbital period is in agreement with current data. Additionally, this theory seems very interesting since it has a correct limit to General Relativity and is renormalizable.