65 citations · 229 across the 18 of their papers we have counts for
4 papers · 1 filter
2D Surface Brightness Modelling of Large 2MASS Galaxies I: Photometry and Structural Parameters
Emmanuel Ríos-López, Christopher Añorve, Héctor J. Ibarra-Medel +4
We have studied a sample of 101 bright 2MASS galaxies from the Large Galaxy Atlas (LGA), whose morphologies span from early to late-types. We have generated estimates for structura…
CoSHA: Code for Stellar properties Heuristic Assignment -- for the MaStar stellar library
Alfredo Mejía-Narváez, Gustavo Bruzual, Sebastian F. Sánchez +5
We introduce \cosha{}: a Code for Stellar properties Heuristic Assignment. In order to estimate the stellar properties, \cosha{} implements a Gradient Tree Boosting algorithm to la…
An Empirical Calibration of the Helium Abundance in HII Regions based in Literature and CALIFA Survey data
M. Valerdi, J. K. Barrera-Ballesteros, S. F. Sánchez +3
Helium is the second most common chemical species in the Universe. The study of helium abundance has the potential to unravel the chemical evolution of and within galaxies. In this…
Chemical abundances in 7 metal-poor HII regions and a determination of the primordial helium abundance
Mabel Valerdi, Antonio Peimbert, Manuel Peimbert
We conducted a long-slit spectrophotometry analysis to obtain the chemical abundances of seven metal-poor HII regions in three galaxies: UM 160, UM 420, and TOL 0513-393. The data…