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High-contrast imaging and high-resolution spectroscopy observation of exoplanets

Wang, Ji and Mawet, Dimitri and Hu, Renyu and Benneke, Björn (2016) High-contrast imaging and high-resolution spectroscopy observation of exoplanets. In: Modeling, Systems Engineering, and Project Management for Astronomy VII. Proceedings of SPIE. No.9911. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 99112T. ISBN 978-1-5106-0201-4. https://resolver.caltech.edu/CaltechAUTHORS:20161115-110140716

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Abstract

Detection and characterization of exoplanets faces challenges of smaller angular separation and high contrast between exoplanets and their host stars. High contrast imaging (HCI) instruments equipped with coronagraphs are built to meet these challenges, providing a way of spatially suppressing and separating stellar flux from that of a planet. Another way of separating stellar flux can be achieved by high-resolution spectroscopy (HRS), exploiting the fact that spectral features are different between a star and a planet. Observing exoplanets with HCI+HRS will achieve a higher contrast than the spatial or the spectroscopic method alone, improving the sensitivity to planet detection and enabling the study of the physical and chemical processes. Here, we simulate the performance of a HCI+HRS instrument (i.e., the upgrade Keck NIRSPEC and the fiber injection unit) to study its potential in detecting and characterizing currently known directly imaged planets. The simulation considers the spectral information content of an exoplanet, telescope and instrument specifications and realistic noise sources. The result of the simulation helps to set system requirement and informs designs at system-level. We also perform a trade study for a HCI+HRS instrument for a space mission to study an Earth-like planet orbiting a Sun-like star at 10 pc.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.2235216DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2546106PublisherArticle
ORCID:
AuthorORCID
Wang, Ji0000-0002-4361-8885
Mawet, Dimitri0000-0002-8895-4735
Hu, Renyu0000-0003-2215-8485
Benneke, Björn0000-0001-5578-1498
Additional Information:© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE).
Subject Keywords:Exoplanet, coronagraph, high-contrast imaging, high-resolution spectrograph, atmospheric modeling
Series Name:Proceedings of SPIE
Issue or Number:9911
DOI:10.1117/12.2235216
Record Number:CaltechAUTHORS:20161115-110140716
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161115-110140716
Official Citation:Ji Wang ; Dimitri Mawet ; Renyu Hu ; Björn Benneke; High-contrast imaging and high-resolution spectroscopy observation of exoplanets. Proc. SPIE 9911, Modeling, Systems Engineering, and Project Management for Astronomy VI, 99112T (August 18, 2016); doi:10.1117/12.2235216.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72031
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:15 Nov 2016 21:17
Last Modified:11 Nov 2021 04:54

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