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High-resolution Near-Infrared Spectroscopy of the B[e] Supergiant LHA 115-S 18: Discovery of Hot Water Vapor Emission

Authors: María Laura Arias, Andrea Fabiana Torres, Michaela Kraus, Lydia Sonia Cidale

María Laura Arias et al 2026 The Astrophysical Journal Letters 1000 .

Provider: AAS Journals

Caption: Figure 2.

GEMINI/IGRINS observed K-band spectrum of LHA 115-S 18 (black), with the model composed of water vapor (red, top three panels) and water vapor + CO bands + Pfund lines (red, bottom two panels) overplotted, along with the residuals shifted for better visibility (gray).

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