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Habitable Exoplanet Observatory (HabEx) telescope and optical instruments

Martin, Stefan and Kuan, Gary and Stern, Daniel and Scowen, Paul and Krist, John and Mawet, Dimitri and Ruane, Garreth (2019) Habitable Exoplanet Observatory (HabEx) telescope and optical instruments. In: Techniques and Instrumentation for Detection of Exoplanets IX. Proceedings of SPIE. No.11117. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 1111704. ISBN 9781510629271. https://resolver.caltech.edu/CaltechAUTHORS:20190913-070700442

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Abstract

The HabEx study has developed a baseline concept for a 4 m aperture next generation space telescope operating from the ultraviolet to the infrared, capable of compelling general astrophysics and exoplanet science. HabEx carries four instruments, a UV spectrometer/imager (UVS) together with a general purpose astrophysics camera/spectrograph (HWC) and for exoplanet work, a coronagraph and a starshade. UVS reaches down to 115 nm with resolution up to 60,000 and a 3’x3’ field of view. HWC operates between 370 nm and 1800 nm, again with a 3’x3’ field of view; the spectral resolution is 1000 and it carries a suite of science filters. The telescope is capable of tracking both deep space and solar system objects. The coronagraph enables observations and spectroscopy at up to R=140 with instantaneous 20% bandwidth between wavelengths of 450 and 1800 nm and is intended to be used in a survey mode. However, it also backs up most of the functionality of the accompanying starshade instrument which will have superior performance for spectroscopy. The 52 m diameter starshade flies 76,600 km from the telescope and at that range has a broadband suppression of the starlight between 300 and 1000 nm. A single observation at 108% bandwidth covers a very wide spectral band at a resolution up to 140. Both coronagraph and starshade are equipped with integral field spectrometers to enable simultaneous spectroscopy of exoplanets within the field of view. This paper details the design of the telescope, the four science instruments and associated optical systems.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2530737DOIArticle
ORCID:
AuthorORCID
Stern, Daniel0000-0003-2686-9241
Mawet, Dimitri0000-0002-8895-4735
Ruane, Garreth0000-0003-4769-1665
Additional Information:© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE). The information in this paper is provided prior to any decisions or commitments being made and is provided for planning and discussion purposes only. This work was conducted at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Copyright 2019 California Institute of Technology. Government sponsorship acknowledged. All rights reserved.
Group:Astronomy Department
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
Subject Keywords:HabEx, Exoplanet, Starshade, Coronagraphy, Ultraviolet, Infrared, Spectroscopy, Imaging
Series Name:Proceedings of SPIE
Issue or Number:11117
Record Number:CaltechAUTHORS:20190913-070700442
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190913-070700442
Official Citation: Stefan Martin, Gary Kuan, Daniel Stern, Paul Scowen, John Krist, Dimitri Mawet, and Garreth Ruane "Habitable Exoplanet Observatory (HabEx) telescope and optical instruments", Proc. SPIE 11117, Techniques and Instrumentation for Detection of Exoplanets IX, 1111704 (9 September 2019); https://doi.org/10.1117/12.2530737
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98624
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:13 Sep 2019 14:45
Last Modified:03 Oct 2019 21:42

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