A novel double-rim forebaffle design for centimeter to sub-millimeter astrophysical observations
Instrumentation and Methods for Astrophysics
2025-11-24 v1
Abstract
Stray radiation of various origin is a major source of degradation of centimeter to sub-millimeter astronomical observations. This is particularly problematic for the detection of signals such as faint cosmic microwave background polarization B modes, or for mapping large-scale extragalactic or Galactic diffuse emission. In this paper, we propose a double-rim forebaffle design to reduce the impact of such stray radiation contamination. Using qualitative arguments and numerical simulations, we show that such a design has the potential to substantially improve the quality of future observations.
Keywords
Cite
@article{arxiv.2511.16970,
title = {A novel double-rim forebaffle design for centimeter to sub-millimeter astrophysical observations},
author = {Jacques Delabrouille and Oliver Jeong and Michel Piat and Alexander Steier},
journal= {arXiv preprint arXiv:2511.16970},
year = {2025}
}