JWST-TST DREAMS: Sulfur Dioxide in the Atmosphere of the Neptune-mass Planet HAT-P-26 b from NIRSpec G395H Transmission Spectroscopy

We present the James Webb Space Telescope (JWST) transmission spectrum of the exoplanet HAT-P-26 b (18.6 M _⊕ , 6.33 R _⊕ ), based on a single transit observed with the JWST NIRSpec G395H grating. We detect water vapor ( ${\mathrm{ln}}\,{ \mathcal B }$ = 4.1), carbon dioxide ( ${\mathrm{ln}}\,{ \mat...

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Hlavní autoři:	Amélie Gressier, Natasha E. Batalha, Nicholas Wogan, Lili Alderson, Dominic Doud, Néstor Espinoza, Ryan J. MacDonald, Hannah R. Wakeford, Jeff A. Valenti, Nikole K. Lewis, Sara Seager, Kevin B. Stevenson, Natalie H. Allen, Caleb I. Cañas, Ryan C. Challener, Ana Glidden, Jingcheng Huang, Zifan Lin, Dana R. Louie, Cathal Maguire, Elijah Mullens, Kristin Sotzen, Daniel Valentine, Mark Clampin, Laurent Pueyo, Roeland P. van der Marel, C. Matt Mountain
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	IOP Publishing 2025-01-01
Edice:	The Astronomical Journal
Témata:	Exoplanet atmospheres Exoplanet atmospheric composition Exoplanet systems Exoplanet astronomy Exoplanets Hot Neptunes
On-line přístup:	https://doi.org/10.3847/1538-3881/ae0929
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