학술논문
A roadmap to the efficient and robust characterization of temperate terrestrial planet atmospheres with JWST
Document Type
Working Paper
Author
Initiative, TRAPPIST-1 JWST Community; de Wit, Julien; Doyon, René; Rackham, Benjamin V.; Lim, Olivia; Ducrot, Elsa; Kreidberg, Laura; Benneke, Björn; Ribas, Ignasi; Berardo, David; Niraula, Prajwal; Iyer, Aishwarya; Shapiro, Alexander; Kostogryz, Nadiia; Witzke, Veronika; Gillon, Michaël; Agol, Eric; Meadows, Victoria; Burgasser, Adam J.; Owen, James E.; Fortney, Jonathan J.; Selsis, Franck; Bello-Arufe, Aaron; Bolmont, Emeline; Cowan, Nicolas; Dong, Chuanfei; Drake, Jeremy J.; Garcia, Lionel; Greene, Thomas; Haworth, Thomas; Hu, Renyu; Kane, Stephen R.; Kervella, Pierre; Koll, Daniel; Krissansen-Totton, Joshua; Lagage, Pierre-Olivier; Lichtenberg, Tim; Lustig-Yaeger, Jacob; Lingam, Manasvi; Turbet, Martin; Seager, Sara; Barkaoui, Khalid; Bell, Taylor J.; Burdanov, Artem; Cadieux, Charles; Charnay, Benjamin; Cloutier, Ryan; Cook, Neil J.; Correia, Alexandre C. M.; Dang, Lisa; Daylan, Tansu; Delrez, Laetitia; Edwards, Billy; Fauchez, Thomas J.; Flagg, Laura; Fraschetti, Federico; Haqq-Misra, Jacob; Huang, Ziyu; Iro, Nicolas; Jayawardhana, Ray; Jehin, Emmanuel; Jin, Meng; Kite, Edwin; Kitzmann, Daniel; Kral, Quentin; Lafrenière, David; Libert, Anne-Sophie; Liu, Beibei; Mohanty, Subhanjoy; Morris, Brett M.; Murray, Catriona A.; Piaulet, Caroline; Pozuelos, Francisco J.; Radica, Michael; Ranjan, Sukrit; Rathcke, Alexander; Roy, Pierre-Alexis; Schwieterman, Edward W.; Turner, Jake D.; Triaud, Amaury; Way, Michael J.
Source
Subject
Language
Abstract
Ultra-cool dwarf stars are abundant, long-lived, and uniquely suited to enable the atmospheric study of transiting terrestrial companions with JWST. Amongst them, the most prominent is the M8.5V star TRAPPIST-1 and its seven planets, which have been the favored targets of eight JWST Cycle 1 programs. While Cycle 1 observations have started to yield preliminary insights into the planets, they have also revealed that their atmospheric exploration requires a better understanding of their host star. Here, we propose a roadmap to characterize the TRAPPIST-1 system -- and others like it -- in an efficient and robust manner. We notably recommend that -- although more challenging to schedule -- multi-transit windows be prioritized to constrain stellar heterogeneities and gather up to 2$\times$ more transits per JWST hour spent. We conclude that in such systems planets cannot be studied in isolation by small programs, thus large-scale community-supported programs should be supported to enable the efficient and robust exploration of terrestrial exoplanets in the JWST era.