Author

N. Sehgal

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Review Sep 2026

CMB-HD Foregrounds: Simulations, Source Detection, and Foreground Removal

We present simulations of the microwave sky at 2.5 arcsecond resolution over 100 square degrees, generated from existing full-sky, lower-resolution simulations, and use them to demonstrate extragalactic foreground removal for a CMB-HD survey. Our cleaning method detects and removes the cosmic infrared background and ra...

A. MacInnis, Joshua Ange, N. Sehgal et al. · 1 citation

Review Sep 2026

Current and Future Constraints on the Primordial Power Spectrum

The primordial scalar power spectrum provides a powerful window onto early-universe physics, including a broad class of inflationary scenarios. These models often predict a characteristic scalar spectral index $(n_s)$, nonzero running $(\alpha_s)$, or more general deviations from a pure power-law form. We find that fre...

Zachary Cheslog, E. Finson, A. MacInnis et al. · 0 citations