![A collection of photometric fluxes and spectra of T Cha are shown. The blue vertical lines represent the variability in optical fluxes (Alcalá et al. 1993). IR photometric fluxes are from 2MASS, WISE, IRAC, IRAS, and Herschel. The millimetre band fluxes correspond to ALMA at 0.85 and 3 mm, SEST at 1.3 mm, and ATCA at 3.3 mm. The mid-IR spectra from Spitzer (grey) and JWST (orange) shows a varying continuum. Inset figure: The AIBs at 6.2, 8.1, and 11.3 µm, prominently appearing in the JWST spectrum, are marked. The two strong lines in the JWST spectrum correspond to the fine-structure [Ar ii] 6.98 µm and [Ne ii] 12.81 µm transitions. -- astro-ph.SR](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/10/Polycyclic-Aromatic-Hydrocarbon-PAH-Abundances.png?resize=1200%2C720&ssl=1)
The T Tauri star T Cha is known to have a protoplanetary disk with a dust gap separating the inner and outer disk regions. The mid-IR JWST spectrum of T […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Interstellar, Status Report
