3 papers
astro-ph.IM2026
The Simons Observatory: Commissioning of the Mid-Frequency Small Aperture Telescopes
Kathleen Harrington, Remington Gerras, Nicholas Galitzki +88
The Simons Observatory (SO) is a cosmic microwave background (CMB) survey experiment observing from an altitude of 5,200 m in the Atacama Desert in Chile. The SO Small Aperture Tel…
astro-ph.CO2025
Parameterizing Noise Covariance in Maximum-Likelihood Component Separation
Goureesankar Sathyanathan, Josquin Errard, Soumen Basak
We introduce a noise-aware extension to the parametric maximum-likelihood framework for component separation by modeling correlated noise as a harmonic-space power law. Thi…
astro-ph.HE2025
A possible wave-optical effect in lensed FRBs
Goureesankar Sathyanathan, Calvin Leung, Olaf Wucknitz +1
Context: Fast Radio Bursts (FRBs) are enigmatic extragalactic bursts whose properties are still largely unknown, but based on their extremely small time duration, they are proposed…