3 papers
astro-ph.CO2026
Thermal Sunyaev-Zel'dovich cross-correlations with unWISE galaxies: disentangling radio contamination, dust properties, and electron pressure
Guandi Zhao, Alex Krolewski, Niayesh Afshordi
Cross-correlations between the thermal Sunyaev-Zel'dovich (tSZ) effect and galaxy surveys provide a sensitive probe of hot gas in low-mass halos, but on the angular scales of great…
astro-ph.IM2026
Characterizing robotic positioners under the influence of changing gravity vectors for future spectroscopic surveys
Johannes Wüthrich, Guandi Zhao, Banan Yamani +5
Future (Stage V) spectroscopic surveys intend to accurately map billions of galaxies. To accomplish this goal, these surveys will employ highly multiplexed focal planes composed of…
astro-ph.CO2025
Halo spin and orientation in Interacting Dark Matter Dark Energy Cosmology
Guandi Zhao, Jiajun Zhang, Peng Wang +1
In recent years, the interaction between dark matter (DM) and dark energy (DE) has become a topic of interest in cosmology. Interacting dark matter-dark energy (IDE) models have a…