Can the European ELT detect super-Earths? Measuring the contrast limit of an image-slicer spectrograph in a laboratory experiment: an update on progress

Robert M. Barnsley; Matthias Tecza

doi:10.1117/12.2312488

10 July 2018 Can the European ELT detect super-Earths? Measuring the contrast limit of an image-slicer spectrograph in a laboratory experiment: an update on progress

Robert M. Barnsley, Matthias Tecza

Author Affiliations +

Proceedings Volume 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III; 107061N (2018) https://doi.org/10.1117/12.2312488
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

One of the highest scientific priorities for the ELT is to image and characterise Earth-like planets around Sun-like stars. This will be achieved with the dedicated planetary camera and spectrograph, ELT-PCS. As ELT-PCS will push current contrast limits for high-contrast imaging, R and D needs to be undertaken to ensure the top-level requirements for the instrument will be met. In this paper we discuss plans to progress the required R and D for the integral field spectrograph technology, with the aim of qualitatively determining the best contrast achievable with both a lenslet-array and an imageslicer based spectrograph. More specifically, we present progression of the design for a new bench spectrograph capable of accepting either of the two competing technologies as its input.

Citation Download Citation

Robert M. Barnsley and Matthias Tecza "Can the European ELT detect super-Earths? Measuring the contrast limit of an image-slicer spectrograph in a laboratory experiment: an update on progress", Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 107061N (10 July 2018); https://doi.org/10.1117/12.2312488

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