Long thought to be a prototype of Be stars, the first detected case of such objects, gamma Cas, was found to be actually atypical amongst them! Indeed, it emits very bright and extremely hard X-rays with a luminosity intermediate between that of normal massive stars and that of high-mass X-ray binaries. Recent efforts in X-ray […]
PhD defense by Jiawei LIU: "Freeform optics and curved detector in the design of compact, fast and wide-field space optical imaging systems", in english. Abstract: In recent years, freeform optics and curved detectors have unlocked new possibilities in optical system design, including expanding the field of view, enhancing resolution, and reducing the number of optical […]
PhD defense entitled by Mahawa Cissé : "Optimising Fourier Filtering Wavefront Sensing for High-Contrast Imaging: Applications to Extremely Large Telescopes". The defense will occur on Tuesday, December 17, at 4:00 PM (French time) in the LAM amphitheatre. The presentation will be held in English, and you can find the abstract below. Abstract: Since 1995, thousands […]
Temperate Rocky Exoplanets: First Results from the JWST and Future Perspectives The investigation of atmospheres and surfaces of temperate rocky planets has, until recently, been confined to bodies within our own solar system (e.g., Earth, Mars, Venus). Over the past 2.5 years, however, the James Webb Space Telescope (JWST) has markedly advanced this field by […]
Abstract: pending... Something about theory and modified gravity with respect to lensing
Abstract pending...
Abstract pending... Something around: Towards multi-messenger observations of accreting supermassive binary black holes
