Spectral Distortion Fisher Forecasting

This is a modified version of the fisher forecasting code: sd_foregrounds. If you use this version of the code, please cite the original paper/code Abitbol+2017 and Sabyr+2024a

Requirements

numpy, scipy, bolocalc-space (if using bolocalc to compute sensitivity)

Description:

example_notebook.ipynb shows how to use this version of the code.

Additions include:

• computing fisher forecasts for some general instrument sensitivity (either computed via bolocalc or an input instantaneous noise in mu-K(rts) units)
• computing bias on the parameters given some bias in the observed sky monopole
• easily swapping fiducial values used in the fisher forecast.

CMB Signals

• Blackbody CMB
• Thermal SZ ("y") + relativistic effects
• mu distortion
• r-type ("residual", or non-mu/non-y) distortion
• H and He recombination lines

Foregrounds

• Cosmic Infrared Background (dusty galaxies)
• Galactic dust
• Galactic synchrotron
• Extragalactic synchrotron/radio emission
• Galactic "anomalous microwave emission" (perhaps spinning dust)
• Galactic free-free emission
• CO lines
• tSZ-like distortion in CIB (using a template from Sabyr, Hill, & Bolliet 2022)