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The Transiting Exoplanet Community Early Release Science Program for JWST

Bean, Jacob L. and Knutson, Heather A. and Krick, Jessica and Ingalls, James G. (2018) The Transiting Exoplanet Community Early Release Science Program for JWST. Publications of the Astronomical Society of the Pacific, 130 (993). Art. No. 114402. ISSN 0004-6280. doi:10.1088/1538-3873/aadbf3.

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The James Webb Space Telescope (JWST) presents the opportunity to transform our understanding of planets and the origins of life by revealing the atmospheric compositions, structures, and dynamics of transiting exoplanets in unprecedented detail. However, the high-precision, timeseries observations required for such investigations have unique technical challenges, and prior experience with Hubble, Spitzer, and other facilities indicates that there will be a steep learning curve when JWST becomes operational. In this paper, we describe the science objectives and detailed plans of the Transiting Exoplanet Community Early Release Science (ERS) Program, which is a recently approved program for JWST observations early in Cycle 1. We also describe the simulations used to establish the program. The goal of this project, for which the obtained data will have no exclusive access period, is to accelerate the acquisition and diffusion of technical expertise for transiting exoplanet observations with JWST, while also providing a compelling set of representative data sets that will enable immediate scientific breakthroughs. The Transiting Exoplanet Community ERS Program will exercise the timeseries modes of all four JWST instruments that have been identified as the consensus highest priorities, observe the full suite of transiting planet characterization geometries (transits, eclipses, and phase curves), and target planets with host stars that span an illustrative range of brightnesses. The observations in this program were defined through an inclusive and transparent process that had participation from JWST instrument experts and international leaders in transiting exoplanet studies. The targets have been vetted with previous measurements, will be observable early in the mission, and have exceptional scientific merit. Community engagement in the project will be centered on a two-phase Data Challenge that culminates with the delivery of planetary spectra, timeseries instrument performance reports, and open-source data analysis toolkits in time to inform the agenda for Cycle 2 of the JWST mission.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Bean, Jacob L.0000-0003-4733-6532
Knutson, Heather A.0000-0002-0822-3095
Ingalls, James G.0000-0003-4714-1364
Additional Information:© 2018 The Astronomical Society of the Pacific. Received 2018 March 15; accepted 2018 August 20; published 2018 September 28. We thank David Charbonneau for strategic advice during the development of our ERS proposal and the anonymous referee for suggestions that improved this paper.
Group:Infrared Processing and Analysis Center (IPAC), Astronomy Department
Subject Keywords:methods: observational – planets and satellites: atmospheres – planets and satellites: individual (WASP-79b, WASP-43b, WASP-18b)
Issue or Number:993
Record Number:CaltechAUTHORS:20180928-102937904
Persistent URL:
Official Citation:Jacob L. Bean et al 2018 PASP 130 114402
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90049
Deposited By: Tony Diaz
Deposited On:28 Sep 2018 22:07
Last Modified:16 Nov 2021 00:40

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