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Simulating high dispersion coronagraphy (HDC) observations for large ground-based telescopes (Conference Presentation)

Wang, Ji and Mawet, Dimitri (2018) Simulating high dispersion coronagraphy (HDC) observations for large ground-based telescopes (Conference Presentation). In: Adaptive Optics Systems VI. Proceedings of SPIE. No.10703. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 107031R. ISBN 9781510619593.

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Spectroscopy of exoplanets can potentially detect biomarkers in habitable planets around other stars. The high dispersion coronagraphy (HDC) technique provides a pathway to search for biomarkers in planets around M dwarfs with next-generation ground-based extremely large telescopes (ELTs). The HDC consists of a coronagraph operating behind an extreme adaptive optics (AO) system, a single-mode fiber injection unit, and a high resolution spectrometer (HRS). The coronagraph spatially filters out starlight while the HRS spectrally discriminates starlight from planet light, reaching a starlight suppression level that enables biomarker detection. I will simulating ELT HDC instrument performance as a function of wavelength, spectral resolution, starlight suppression, and planet types, considering realistic noise budget that includes speckle noise, thermal and sky background and exozodical background.

Item Type:Book Section
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URLURL TypeDescription
Wang, Ji0000-0002-4361-8885
Mawet, Dimitri0000-0002-8895-4735
Additional Information:© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).
Group:Astronomy Department
Series Name:Proceedings of SPIE
Issue or Number:10703
Record Number:CaltechAUTHORS:20190823-134013622
Persistent URL:
Official Citation:Ji Wang and Dimitri Mawet "Simulating high dispersion coronagraphy (HDC) observations for large ground-based telescopes (Conference Presentation)", Proc. SPIE 10703, Adaptive Optics Systems VI, 107031R (10 July 2018);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98185
Deposited By: George Porter
Deposited On:23 Aug 2019 22:18
Last Modified:11 Oct 2019 03:47

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