ASCL.net

Astrophysics Source Code Library

Making codes discoverable since 1999

ASCL Code Record

[ascl:2303.003] SeeKAT: Localizer for transients detected in tied-array beams

SeeKAT is a Python implementation of a novel maximum-likelihood estimation approach to localizing transients and pulsars detected in multiple MeerKAT tied-array beams at once to (sub-)arcsecond precision. It reads in list of detections (RA, Dec, S/N) and the beam PSF and computes a covariance matrix of the S/N value ratios, assuming 1-sigma Gaussian errors on each measurement. It models the aggregate beam response by arranging beam PSFs appropriately relative to each other and calculates a likelihood distribution of obtaining the observed S/N in each beam according to the modeled response. In addition, SeeKAT can plot the likelihood function over RA and Dec with 1-sigma uncertainty, overlaid on the beam coordinates and sizes.

Code site:
https://bezuidenhoutmc.github.io/SeeKAT/ https://github.com/BezuidenhoutMC/SeeKAT
Used in:
https://ui.adsabs.harvard.edu/abs/2023MNRAS.520.3847C
Described in:
https://ui.adsabs.harvard.edu/abs/2023arXiv230209812B
Bibcode:
2023ascl.soft03003B

Views: 1091

ascl:2303.003
Add this shield to your page
Copy the above HTML to add this shield to your code's website.