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Ambiguities in gravitational lens models: impact on time delays of the source position transformation
Olivier Wertz, Bastian Orthen, Peter Schneider
The central ambition of the modern time delay cosmography consists in determining the Hubble constant with a competitive precision. However, the tension with obtained f…
Discovery of a point-like source and a third spiral arm in the transition disk around the Herbig Ae star MWC 758
M. Reggiani, V. Christiaens, O. Absil +20
Transition disks offer the extraordinary opportunity to look for newly born planets and investigate the early stages of planet formation. In this context we observed the Herbig A5…
VIP: Vortex Image Processing package for high-contrast direct imaging
C. A. Gomez Gonzalez, O. Wertz, O. Absil +11
We present the Vortex Image Processing (VIP) library, a python package dedicated to astronomical high-contrast imaging. Our package relies on the extensive python stack of scientif…