Colloque café - scientifique

Animé par Guillaume Batigne

jeudi 26 novembre 2020 à 13:45

En visio

Gravitational waves - a new window to the Universe

Christina Thöne

Instituto de Astrofísica de Andalucía (IAA), Granada, Espagne

With the detection of gravitational waves from the mergers of compact objects astronomy has obtained a new window to study the Universe and in particular events inaccessible to any other method. The detection of electromagnetic radiation together with GWs from a neutron star - neutron star merger paved the way for true multi-messenger astronomy. Furthermore answered a large number of outstanding questions: the nature of short gamma-ray bursts and their connection to NS-NS merger, the speed of GWs and it even allowed an independent measurement of the Hubble constant. The next big thing in multi-messenger astronomy will be the detection of GWs, EM radiation and particles, e.g. neutrinos or cosmic rays from the same source. In this talk I will give an overview on the state of GW detections and their implications for astrophysics. I will talk about their connection to short GRBs and what we have learned so far. I will also give an outlook for the next observing run of LIGO and the more distant future of GW research, e.g. Galactic supernovae, and future facilities. Last I will also talk about the interplay between GWs, „traditional astronomy“ and particle physics and what we could learn from combining all these methods.


Link to the presentation

Retour d’expérience du projet MFT

Meriadeg Guillamet

Subatech (service mécanique)

• Présentation générale du MFT
     – Le MFT c’est quoi, c’est qui, c’est installé où?

• Contraintes de conception et de réalisation

• Retour en images sur les étapes d’assemblage
     – Dans les laboratoires, chez les sous-traitants et au CERN

• Et aujourd’hui on en est où?

Link to the presentation