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Jun 23 – 27, 2025
Eckhardt Research Center
America/Chicago timezone

Forecasts for a mm sky survey of the Northern Hemisphere with a 13-m antenna

Jun 23, 2025, 5:30 PM
2h
161 (Eckhardt Research Center)

161

Eckhardt Research Center

5640 South Ellis Ave, Chicago, IL 60637

Speaker

Mateo Fernández Torreiro (CNRS (LPSC))

Description

Most of the instruments currently observing at mm wavelenghts are located in the Southern Hemisphere. Those few in the Northern Hemisphere are mostly focused on observations of large scale CMB anisotropies with small aperture telescopes (e.g. AliCMB, GroundBIRD). Therefore, there is a gap for an instrument with a large mirror ($D\geq10\,$m) that would survey the Northern sky.
We propose a new photometric instrument observing at mm wavelengths and located at the Teide Observatory, in Tenerife, with latitude $+28^\circ$ at 2400 meters of altitude. Such instrument would be placed on a 13-meter diameter antenna and would observe at four different bands: 90, 150, 220 and 260 GHz (3, 2, 1.4 and 1.15 mm, respectively) with $\leq1^\prime$ resolution. The field-of-view would cover 1 degree, with more than 70k KID detectors in several different arrays.
In this talk we present a new set of simulations to assess the capabilities of the instrument with regard to galaxy cluster and SZ science. We generate realistic distributions of clusters, and include noise levels (with $1/f$ and white components) consistent with those expected at the Tenerife site. We also generate point source maps and an appropriate transfer function in order to accurately account for the expected filtering from the instrument. We consider two related scenarios: wide (WS) and deep (DS) surveys, accounting for 6000 and 300 deg$^2$ and observing for 3 years each with 50% time efficiency. We present the expected sensitivity of the instrument in all four previous bands, the forecasted performance for blind searches of galaxy clusters and its ability to recover both their thermal and kinematic components.

Would you be interested in presenting a poster if the conference is oversubcribed? Yes

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