frb.rm - Rotation Measure
Rotation Measure calculations, including loading of Oppermann et al. 2014 RM models.
Module for RM calculations
- frb.rm.load_opperman2014()[source]
Load the Oppermann et al. 2014 – https://arxiv.org/abs/1404.3701 maps Galactic Farady RM and its uncertainty
- Returns:
RM and RM_err with units of rad/m^2
- Return type:
healpy map, healpy map
- frb.rm.load_hutschenreuter2020()[source]
Load the Hutschenreuter 2020 map – https://wwwmpa.mpa-garching.mpg.de/~ensslin/research/data/faraday2020.html Galactic Farady RM and its uncertainty
See: https://ui.adsabs.harvard.edu/abs/2022A%26A…657A..43H/abstract for full details
- Returns:
RM and RM_err with units of rad/m^2
- Return type:
healpy map, healpy map
- frb.rm.galactic_rm(coord, use_map=2020)[source]
Provide an RM and error estimate for a coordinate on the sky.
Default is the new Hutschenreuter 2020 map
- Args:
coord (astropy.coordinates.SkyCoord) – Coordinate for the RM esimation
use_map (int, optional) – Specifies the map to use. Options are [2014, 2020] Default is 2020
- Returns:
RM and RM_err with units of rad/m^2
- Return type:
Quantity, Quantity