7388032
doi
10.5281/zenodo.7388032
oai:zenodo.org:7388032
user-ers-transit
David K. Sing
Johns Hopkins University
Sagnick Mukherjee
University of California, Santa Cruz
Erin May
Johns Hopkins APL
James Kirk
Imperial College, London
Everett Schlawin
University of Arizona
Michael R. Line
Arizona State University
Caroline Piaulet
Université de Montréal
Aarynn Carter
University of California, Santa Cruz
Natasha E. Batalha
NASA Ames Research Center
Jayesh Goyal
National Institute of Science Education and Research
Products and Models for "Early Release Science of the Exoplanet WASP-39b with JWST NIRSpec PRISM"
Zafar Rustamkulov
Johns Hopkins University
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
exoplanet atmospheres
transmission spectroscopy
jwst
wasp-39 b
nirspec prism
<p>Associated publication: <a href="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41586-022-05677-y%2520&data=05%7C01%7Czafar%40jhu.edu%7C70cefcf501224b8d305708daed9f9533%7C9fa4f438b1e6473b803f86f8aedf0dec%7C0%7C0%7C638083566905963125%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=gyY0O%2FyMHX0paZC60ZCiQAif%2F0O8K2QKAuuF9%2FjtRpA%3D&reserved=0">https://www.nature.com/articles/s41586-022-05677-y</a></p>
<p> </p>
<p>OVERVIEW: Transmission spectroscopy of exoplanets has revealed signatures of water vapor, aerosols, and alkali metals in a few dozen exoplanet atmospheres. However, these previous inferences with the Hubble and Spitzer Space Telescopes were hindered by the observations’ relatively narrow wavelength range and spectral resolving power, which precluded the unambiguous identification of other chemical species—in particular the primary carbon-bearing molecules. Here we report a broad-wavelength 0.5–5.5 µm atmospheric transmission spectrum of WASP-39 b, a 1200 K, roughly Saturn-mass, Jupiter-radius exoplanet, measured with JWST NIRSpec’s PRISM mode as part of the JWST Transiting Exoplanet Community Early Release Science Team program. We robustly detect multiple chemical species at high significance, including Na (19σ), H<sub>2</sub>O (33σ), CO<sub>2</sub> (28σ), and CO (7σ). The non-detection of CH<sub>4</sub>, combined with a strong CO<sub>2</sub> feature, favours atmospheric models with a super-solar atmospheric metallicity. An unanticipated absorption feature at 4 µm is best explained by SO<sub>2</sub> (2.7σ), which could be a tracer of atmospheric photochemistry. These observations demonstrate JWST’s sensitivity to a rich diversity of exoplanet compositions and chemical processes.</p>
See associated paper: https://arxiv.org/abs/2211.10487
Zenodo
2022-12-01
info:eu-repo/semantics/other
7388031
user-ers-transit
1673037883.248124
284909288
md5:72b84bcb77a175b31f207751ca9e7e7e
https://zenodo.org/records/7388032/files/W39_PRISM_data.zip
public
10.5281/zenodo.7388031
isVersionOf
doi