EllipSect is a user-friendly analysis and measurement tool, implemented in Python, that operates on the imaging data together with the output of the widely used 2D surface-brightness fitting code GALFIT 3. It produces publication-quality figures and exportable data products to enable quantitative assessment of GALFIT 3 models and their individual components. In addition, EllipSect computes non-parametric measurements that are not provided by GALFIT 3, including the total effective radius resulting from multi-component fits, cusp radius, and the Petrosian radius. This paper provides examples and a quick guide for EllipSect.
@article{arxiv.2501.10079,
title = {ELLIPSECT: A surface brightness analysis tool for GALFIT 3},
author = {Christopher Añorve and Omar Ulises Reyes-Amador and Emmanuel Ríos-López and Diego de Ramón Tadeo and Omar López-Cruz},
journal= {arXiv preprint arXiv:2501.10079},
year = {2026}
}
Comments
9 pages, 7 figures, Accepted for publication in Rev. Mex. Astron. Astrofis