Christian Delacroix

TL;DR: In this article, the impact of small sample statistics on detection thresholds and corresponding confidence levels (CLs) in high-contrast imaging at small angles is reviewed. But the authors do not consider the effect of small angles on the detection threshold.

TL;DR: In this article, the authors observed the Herbig A5 star MWC 758 with the L′-band vector vortex coronagraph installed in the near-infrared camera and spectrograph NIRC2 at the Keck II telescope, with the aim of unveiling the nature of the spiral structure by constraining the presence of planetary companions.

TL;DR: In this article, the authors used the L′-band AGPM coronagraph on VLT/NACO to search for additional giant planets located at smaller angular separations from the star.

TL;DR: ESO fellowship programme; NASA through Hubble Fellowship by STScI [HST-HF2-51355, HST-AR-12652], NASA [NAS5-26555], European Research Council under the European Union's Seventh Framework Programme (ERC Grant) [337569], French Community of Belgium through an ARC grant for Concerted Research Action; Royal Society; European Union through ERC grant [279973], Millennium Science Initiative (Chilean Ministry of Economy) [RC130007], Mexican CONACyT [CB-2012-18

TL;DR: In this article, the authors used the L-band AGPM coronagraph on VLT/NACO to search for additional giant planets located at smaller angular separations from the star.