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Starshade Exoplanet Data Challenge

Hu, Renyu and Hildebrandt, Sergi R. and Damiano, Mario and Shaklan, Stuart and Martin, Stefan and Lisman, Doug (2021) Starshade Exoplanet Data Challenge. . (Submitted) https://resolver.caltech.edu/CaltechAUTHORS:20210323-144513972

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Abstract

Starshade in formation flight with a space telescope is a rapidly maturing technology that would enable imaging and spectral characterization of small planets orbiting nearby stars in the not-too-distant future. While performance models of the starshade-assisted exoplanet imaging have been developed and used to design future missions, their results have not been verified from the analyses of synthetic images. Following a rich history of using community data challenges to evaluate image-processing capabilities in astronomy and exoplanet fields, the Starshade Technology Development to TRL5 (S5), a focused technology development activity managed by the NASA Exoplanet Exploration Program, is organizing and implementing a starshade exoplanet data challenge. The purpose of the data challenge is to validate the flow down of requirements from science to key instrument performance parameters and to quantify the required accuracy of noisy background calibration with synthetic images. This data challenge distinguishes itself from past efforts in the exoplanet field in that (1) it focuses on the detection and spectral characterization of small planets in the habitable zones of nearby stars, and (2) it develops synthetic images that simultaneously include multiple background noise terms -- some specific to starshade observations -- including residual starlight, solar glint, exozodiacal light, detector noise, as well as variability resulting from starshade's motion and telescope jitter. In this paper, we provide an overview of the design and rationale of the data challenge. Working with data challenge participants, we expect to achieve improved understanding of the noise budget and background calibration in starshade-assisted exoplanet observations in the context of both Starshade Rendezvous with Roman and HabEx.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/2103.09359arXivDiscussion Paper
ORCID:
AuthorORCID
Hu, Renyu0000-0003-2215-8485
Hildebrandt, Sergi R.0000-0003-0220-0009
Damiano, Mario0000-0002-1830-8260
Additional Information:© 2021 California Institute of Technology. Government sponsorship acknowledged. We thank Karl Stapelfeldt, Eric Mamajek, Christopher Stark, and Phil Willems for helpful discussions. The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004).
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
NASA80NM0018D0004
Subject Keywords:Starshade, High Contrast Imaging, Exoplanet, Data Challenge, Roman Space Telescope, HabEx
Record Number:CaltechAUTHORS:20210323-144513972
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210323-144513972
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108536
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:24 Mar 2021 21:37
Last Modified:24 Mar 2021 21:37

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