Institution: | Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece;Theoretical Astrophysics, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany;Louisiana State University (LSU), CCT, 330 Johnston Hall, Baton Rouge, LA 70803, USA;Max Planck Institute for Gravitational Physics (AEI), Am Mühlenberg 1, 14476 Golm, Germany |