Discovery space and science with the PLACID stellar coronagraph

Ruben Tandon; Liurong Lin; Axel Potier; Laurent Jolissaint; Audrey Baur; Derya Öztürk Çetni; Jonas G. Kühn

doi:10.1117/12.3018836

18 July 2024 Discovery space and science with the PLACID stellar coronagraph

Ruben Tandon, Liurong Lin, Axel Potier, Laurent Jolissaint, Audrey Baur, Derya Öztürk Çetni, Jonas G. Kühn

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130963F (2024) https://doi.org/10.1117/12.3018836
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The world’s first ever “adaptive stellar coronagraph” facility will be the PLACID instrument, installed on Turkey’s new national observatory 4-m DAG telescope. PLACID incorporates a customized spatial light modulator (SLM) acting as a dynamically addressed focal-plane phase mask (FPM) coronagraph in the H – Ks bands. This new approach to high-contrast imaging will be applied on-sky in late 2024/early 2025. We present a first estimate of the science discovery space for PLACID, in terms of known exoplanets and brown dwarfs, considering raw lab contrast, contrast ratios, limiting magnitudes, coronagraphic inner working angle etc. In the future, we will also look into predicted disk and binary or multiple stars systems imaging performance, with the latter being a possible niche science case for the instrument (adaptive FPM for multiple stars). This work will inform on the first light PLACID commissioning activities and early science on the DAG telescope and is deemed to evolve in function of future developments on the DAG AO instrumentation suite.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ruben Tandon, Liurong Lin, Axel Potier, Laurent Jolissaint, Audrey Baur, Derya Öztürk Çetni, and Jonas G. Kühn "Discovery space and science with the PLACID stellar coronagraph", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130963F (18 July 2024); https://doi.org/10.1117/12.3018836

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