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February 14, 2026Monthly Notices of the Royal Astronomical Society1 citationsOpen Access

Temporal Variations in Mid-IR Silicate Features of T Tauri Discs from JWST and Spitzer Data

JWST-DECO: Temporal Variations in the Mid-IR Silicate Features of Two T Tauri Discs Based on Spitzer and JWST Observations

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Authors

NSN SameshimaTMT MiyataTKTakafumi Kamizuka

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Overview

Observations reveal significant changes in silicate emission in T Tauri discs, suggesting structural variations over time.

Key Points

  • The research aims to analyze silicate emission variations in T Tauri discs using JWST and Spitzer observations.
  • Conducted observations of Sz 96 and IP Tau discs with JWST and compared them to previous Spitzer data.
  • Analyzed mid-infrared spectra to identify changes in silicate emission.
  • Measured flux variations and spectral shapes across different wavelengths.
  • Significant flux variations of 10–15% in Sz 96 and 30–35% in IP Tau were observed.
  • Sz 96 dimmed at ≤ 18 μm, while IP Tau showed brightness enhancement, especially around 10 μm.
  • Crystalline silicates were found to have lower temperatures than amorphous silicates, indicating transport processes.

Cite This Study

Sameshima et al. (2026) studied this question.

synapsesocial.com/papers/6990113f2ccff479cfe57bc0https://doi.org/10.1093/mnras/stag273
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