Laurent Pallanca

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  • GRAVITY collaboration, I. Waisberg, +68 authors S. Yazici
  • 2017
We observe the HMXB BP Cru using interferometry in the near-infrared K band with VLTI/GRAVITY. Continuum visibilities are at most partially resolved, consistent with the predicted size of the hypergiant. Differential visibility amplitude (∆|V | ∼ 5%) and phase (∆φ ∼ 2◦) signatures are observed across the HeI 2.059μm and Brγ lines, the latter seen strongly(More)
This paper reports on the detailed implementation and on-sky performance evaluation of an adaptive vibration cancellation (AVC) algorithm integrated into a medium order Adaptive Optics system (MACAO) currently operated at the European Southern Observatory in Paranal Chile. With respect to the previous contributions from the authors on the subject, this(More)
Broadband near-to-shot-noise suppression of the intensity noise from a continuous-wave (cw) fiber laser at 1550 nm is demonstrated at GHz-frequencies using feed-forward phase-matched destructive noise interference impressed onto the optical signal with a fiber electro-optic power modulator. The scheme is independent of the laser frequency and therefore is(More)
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