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Contributions > By speaker > Laugier Romain

From Asgard/NOTT to LIFE : grasping the power of nulling interferometry
Romain Laugier  1@  , Denis Defrère  2@  
1 : Institute of Astronomy - KU Leuven
2 : Institute of Astronomy [Leuven]
Celestijnenlaan 200D BUS 2401, 3001 Leuven -  Belgium

High-contrast observations have been contributing to the long-period part of the exoplanet landscape. The advent of nullers such as Asgard/NOTT at VLTI, functioning as coronagraphs for interferometers, should unlock comparable performance at angular separations smaller by a factor 20, opening up resolved observations of giant planets at the snow line of young stars, and even hot Jupiters around nearby stars. Farther in the future, the LIFE space mission will open the door to characterizing temperate rocky planets in the thermal infrared.

We typically rely on data reduction techniques to obtain the final x10 gain performance gain towards astrophysical interpretation. A new data exchange standard called NIFITS was recently introduced to power the development of these techniques.

In this presentation, we will go over the basics of the nulling data, before describing how these advances unlock the exploitation of Asgard/NOTT and its different modes. Furthermore, we will give some perspective on how this carries forward in the development of the LIFE space mission, including elements that also apply to coronagraph data reduction.


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