JWST observations of z~1.1 galaxies produce PAH ratio maps showing larger and more neutral PAHs at larger radii, opposite local trends, linked to UV hardness via photo-destruction.
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JWST observations find constant ~1% PAH abundance in the M82 superwind to 5 kpc, consistent with shielding in surface layers of cool clouds and possible replenishment.
CO2 binding energies on water ice follow a bimodal Gaussian distribution that significantly extends the gaseous CO2 fraction in protoplanetary disks.
JWST MIRI observations of post-starburst galaxies find no mid-IR excess in high-mass systems, constraining hidden AGN to Eddington ratios below 1 percent, with low-mass systems showing residual star formation instead.
Aliphatic side chains on PAHs shift certain infrared band intensity ratios, especially in small molecules, which can mislead ionization-state estimates, though the main diagnostic grid still applies with possible calibration.
JWST spectroscopy reveals radio jets in nearby AGN drive multiphase ISM turbulence and shock-dominated H2 excitation both along and perpendicular to the jet direction.
Rest-frame 6-8um MIRI luminosity provides broken power-law SFR calibrations with 0.2-0.3 dex scatter and UV+IR composites at 0.15 dex, supporting robust use above log M* ~9 up to z~3.
This review summarizes evidence for anomalous microwave emission and projects how SKA observations will identify its carriers and mechanisms in Galactic and extragalactic environments.
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Fizzy water ice in space: CO$_2$ adsorption, binding energies and its fate in a protoplanetary disk
CO2 binding energies on water ice follow a bimodal Gaussian distribution that significantly extends the gaseous CO2 fraction in protoplanetary disks.