JWST-TST DREAMS: NIRSpec/PRISM Transmission Spectroscopy of the Habitable Zone Planet TRAPPIST-1 e
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912574025498624 |
|---|---|
| author | Espinoza, Néstor Allen, Natalie H. Glidden, Ana Lewis, Nikole K. Seager, Sara Cañas, Caleb I. Grant, David Gressier, Amélie Courreges, Shelby Stevenson, Kevin B. Ranjan, Sukrit Colón, Knicole Morris, Brett M. MacDonald, Ryan J. Long, Douglas Wakeford, Hannah R. Valenti, Jeff A. Alderson, Lili Batalha, Natasha E. Challener, Ryan C. Huang, Jingcheng Lin, Zifan Louie, Dana R. Mullens, Elijah Valentine, Daniel Mountain, C. Matt Pueyo, Laurent Perrin, Marshall D. Bellini, Andrea Kammerer, Jens Libralato, Mattia Rebollido, Isabel Rickman, Emily Sohn, Sangmo Tony van der Marel, Roeland P. |
| author_facet | Espinoza, Néstor Allen, Natalie H. Glidden, Ana Lewis, Nikole K. Seager, Sara Cañas, Caleb I. Grant, David Gressier, Amélie Courreges, Shelby Stevenson, Kevin B. Ranjan, Sukrit Colón, Knicole Morris, Brett M. MacDonald, Ryan J. Long, Douglas Wakeford, Hannah R. Valenti, Jeff A. Alderson, Lili Batalha, Natasha E. Challener, Ryan C. Huang, Jingcheng Lin, Zifan Louie, Dana R. Mullens, Elijah Valentine, Daniel Mountain, C. Matt Pueyo, Laurent Perrin, Marshall D. Bellini, Andrea Kammerer, Jens Libralato, Mattia Rebollido, Isabel Rickman, Emily Sohn, Sangmo Tony van der Marel, Roeland P. |
| contents | TRAPPIST-1 e is one of the very few rocky exoplanets that is both amenable to atmospheric characterization and that resides in the habitable zone of its star -- located at a distance from its star such that it might, with the right atmosphere, sustain liquid water on its surface. Here, we present a set of 4 JWST/NIRSpec PRISM transmission spectra of TRAPPIST-1 e obtained from mid to late 2023. Our transmission spectra exhibit similar levels of stellar contamination as observed in prior works for other planets in the TRAPPIST-1 system (Lim et al, 2023; Radica et al., 2024), but over a wider wavelength range, showcasing the challenge of characterizing the TRAPPIST-1 planets even at relatively long wavelengths (3-5 um). While we show that current stellar modeling frameworks are unable to explain the stellar contamination features in our spectra, we demonstrate that we can marginalize over those features instead using Gaussian Processes, which enables us to perform novel exoplanet atmospheric inferences with our transmission spectra. In particular, we are able to rule out cloudy, primary H$_2$-dominated ($\gtrsim$ 80$\%$ by volume) atmospheres at better than a 3$σ$ level. Constraints on possible secondary atmospheres on TRAPPIST-1 e are presented in a companion paper (Glidden et al., 2025). Our work showcases how JWST is breaking ground into the precisions needed to constrain the atmospheric composition of habitable-zone rocky exoplanets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_05414 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | JWST-TST DREAMS: NIRSpec/PRISM Transmission Spectroscopy of the Habitable Zone Planet TRAPPIST-1 e Espinoza, Néstor Allen, Natalie H. Glidden, Ana Lewis, Nikole K. Seager, Sara Cañas, Caleb I. Grant, David Gressier, Amélie Courreges, Shelby Stevenson, Kevin B. Ranjan, Sukrit Colón, Knicole Morris, Brett M. MacDonald, Ryan J. Long, Douglas Wakeford, Hannah R. Valenti, Jeff A. Alderson, Lili Batalha, Natasha E. Challener, Ryan C. Huang, Jingcheng Lin, Zifan Louie, Dana R. Mullens, Elijah Valentine, Daniel Mountain, C. Matt Pueyo, Laurent Perrin, Marshall D. Bellini, Andrea Kammerer, Jens Libralato, Mattia Rebollido, Isabel Rickman, Emily Sohn, Sangmo Tony van der Marel, Roeland P. Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics TRAPPIST-1 e is one of the very few rocky exoplanets that is both amenable to atmospheric characterization and that resides in the habitable zone of its star -- located at a distance from its star such that it might, with the right atmosphere, sustain liquid water on its surface. Here, we present a set of 4 JWST/NIRSpec PRISM transmission spectra of TRAPPIST-1 e obtained from mid to late 2023. Our transmission spectra exhibit similar levels of stellar contamination as observed in prior works for other planets in the TRAPPIST-1 system (Lim et al, 2023; Radica et al., 2024), but over a wider wavelength range, showcasing the challenge of characterizing the TRAPPIST-1 planets even at relatively long wavelengths (3-5 um). While we show that current stellar modeling frameworks are unable to explain the stellar contamination features in our spectra, we demonstrate that we can marginalize over those features instead using Gaussian Processes, which enables us to perform novel exoplanet atmospheric inferences with our transmission spectra. In particular, we are able to rule out cloudy, primary H$_2$-dominated ($\gtrsim$ 80$\%$ by volume) atmospheres at better than a 3$σ$ level. Constraints on possible secondary atmospheres on TRAPPIST-1 e are presented in a companion paper (Glidden et al., 2025). Our work showcases how JWST is breaking ground into the precisions needed to constrain the atmospheric composition of habitable-zone rocky exoplanets. |
| title | JWST-TST DREAMS: NIRSpec/PRISM Transmission Spectroscopy of the Habitable Zone Planet TRAPPIST-1 e |
| topic | Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2509.05414 |