Author

J. Silverman

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Review Open access Aug 2026

Resolved Dust in z ≈ 1 Galaxies with JWST/MIRI MRS: Survey Description and First View on Polycyclic Aromatic Hydrocarbons, Mid-infrared Atomic Emission, and Warm H2

Dust is a key component of galaxies that regulates their thermal balance and, consequently, star formation and the buildup of stellar mass. Polycyclic aromatic hydrocarbons (PAHs) are responsible for reprocessing the radiative energy of galaxies, thus tracing dust evolution. Using JWST/MIRI Medium Resolution Spectrosco...

Wu-Ji Wang, A. Faisst, T. S. Lai et al. · 0 citations

Review Sep 2026

CHAMPS: The COSMOS High-Redshift ALMA-MIRI Population Survey - A New Census of the Dusty Early Universe

Understanding how dust forms and evolves over cosmic time is a key open problem in extragalactic astrophysics. Galaxies in the early Universe were once thought to be mostly dust-poor, but recent discoveries of heavily dust-obscured galaxies near the Epoch of Reionization challenge models of early dust production and ra...

A. Faisst, Felix Martinez, J. Kartaltepe et al. · 0 citations

Preprint Aug 2026

PIFFLE: Characterizing the Foreground Contributions from 4 Decades in Halo Mass to the FRB20230907D Dispersion Measure

We characterize the foreground environment of FRB20230907D, localized to a galaxy at $z=0.464$, which has an observed dispersion measure of ${\rm DM}_{\rm obs}=1031~{\rm pc~cm^{-3}}$. At its redshift, FRB20230907D lies above the Macquart relation, the expected relation between cosmological dispersion measure and the so...

Qi Guo, Khee-Gan Lee, S. Simha et al. · 0 citations