Updated forecast for TRAPPIST-1 times of transit for all seven exoplanets incorporating JWST data
Eric Agol, Natalie H. Allen, Bj\"orn Benneke, Laetitia Delrez, and Ren\'e Doyon, Elsa Ducrot, N\'estor Espinoza, Am\'elie Gressier, and David Lafreni\`ere, Olivia Lim, Jacob Lustig-Yaeger, Caroline, Piaulet-Ghorayeb, Michael Radica, Zafar Rustamkulov, Kristin S., Sotzen

TL;DR
This paper refines the predicted transit times for all seven TRAPPIST-1 exoplanets using new JWST data, significantly improving the precision of future observation planning.
Contribution
It provides updated transit time forecasts for TRAPPIST-1 planets based on 23 new JWST measurements, enhancing accuracy over previous models.
Findings
Transit times of TRAPPIST-1h have shifted significantly from previous estimates.
Median uncertainties in transit time predictions range from 7 to 105 seconds.
The improved forecast aids in planning future JWST observations.
Abstract
The TRAPPIST-1 system has been extensively observed with JWST in the near-infrared with the goal of measuring atmospheric transit transmission spectra of these temperate, Earth-sized exoplanets. A byproduct of these observations has been much more precise times of transit compared with prior available data from Spitzer, HST, or ground-based telescopes. In this note we use 23 new timing measurements of all seven planets in the near-infrared from five JWST observing programs to better forecast and constrain the future times of transit in this system. In particular, we note that the transit times of TRAPPIST-1h have drifted significantly from a prior published analysis by up to tens of minutes. Our newer forecast has a higher precision, with median statistical uncertainties ranging from 7-105 seconds during JWST Cycles 4 and 5. Our expectation is that this forecast will help to improve…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAstronomy and Astrophysical Research · Stellar, planetary, and galactic studies · Astronomical Observations and Instrumentation
