Olivier Berné: Studies of the interstellar medium in the JWST era

Quand :
22 mai 2018 @ 11 h 00 min – 12 h 00 min
Où :
The James Webb Space Telescope (JWST) is the next flagship mission of NASA, and involves ESA and the Candian Space Agency (CSA). With a price cap estimated to 9 billions dollars, it is the most expensive space mission since Apollo. This is justified by the very ambitious scientific and technical objectives (observing first lights, 6.5m deployable mirror etc.), and by the promise of having an impact on the general public as large as Hubble.  
The idea of this presentation is to illustrate the capabilities of the JWST when applied to emblematic scientific case-studies of the interstellar medium (ISM) such as : the photochemistry of aromatic macromolecules in space (PAHs and fullerenes), the physics of radiative feedback from massive stars on the ISM, or the mechanisms driving mass loss by photoevaporation in protoplanetary disks. I will also discuss the Early Release Science observing project we are in charge of, which was accepted and will be conducted in the very first days of the scientific phase of the JWST mission. It is expected that this project will provide a first glimpse of what can be done scientifically, notably for the case studies mentioned above, and beyond. This project, which will target the Orion Nebula (or the Trifid in case of shift in launch date), is fully open to the community, and the data will be made public immediately after they are collected.