Evidence item

The H2S result derives from 0.3–5.3 μm combined HST/JWST transmission data, three independent reductions, and remains conditional on confirmation at probed pressures. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 23798

Source: A Clearer View of HAT-P-1 b: JWST NIRSpec G395H Reveals Water, Carbon Dioxide, and Possibly Hydrogen Sulfide · locator {} · excerpt hash sha256:ad36be179d843c7177460383b83706dfe5045c879b57b3214dda8576efc15330

Exact excerpt

We present JWST NIRSpec G395H transmission spectroscopy of the hot Jupiter HAT-P-1 b over 2.7–5.3 μm, and combine the new spectrum with archival HST STIS and WFC3 observations for a 0.3–5.3 μm atmospheric analysis. We independently reduce the JWST data with the Eureka!, FIREFLy, and Tswift pipelines... while providing tentative evidence for H2S (log10 B_H2S = 1.4). The tentative H2S signal, if confirmed, would further suggest limited photochemical processing at the pressures probed.

Linked claims

Claim	Direction	Relevance	Steps	Counted
7883a647	QUALIFY	DIRECT	0	yes

Audits

None.