dish metrology 1hydrogen intensity mapping 1photogrammetry 1radio interferometry 1systematic errors 1
From the 1 of 3 linked papers with an AI index.
3 papers
astro-ph.IM2026
Dish Assembly Precision for HIRAX
Jennifer Studer, Devin Crichton, Alexandre Refregier +16
The paper presents photogrammetry measurements of the first 28 HIRAX dishes, showing that dish surface deviations meet specifications while feed placement meets accuracy but not pr…
astro-ph.CO2026
Exploring Beyond ÎCDM with the Weak Lensing Power Spectrum and Bispectrum
Liantsoa F. Randrianjanahary, Chandrachud B. V. Dash
In this work, we present Fisher matrix forecast of the tomographic weak lensing power spectrum and bispectrum for three physically distinct types of models of beyond-CDM: the C…
astro-ph.CO2025
A semi-cosmographic approach to study cosmological evolution in phase space
Pankaj Chavan, Tapomoy Guha Sarkar, Chandrachud B. V. Dash +1
The signature of Baryon Acoustic Oscillation in the clustering of dark-matter tracers allows us to measure independently. Treating these as conjugate variables, we…