activity
19972023
most citedUp-dated opacities from the Opacity Project

399 citations · 4.1k across the 61 of their papers we have counts for

collaborators

61 papers

astro-ph.GA2023★ 18 cited

Atomic Data Assessment with PyNeb: Radiative and Electron Impact Excitation Rates for [Fe II] and [Fe III]

Claudio Mendoza, José E. Méndez-Delgado, Manuel Bautista +2

We use the PyNeb 1.1.16 Python package to evaluate the atomic datasets available for the spectral modeling of [Fe II] and [Fe III], which list level energies, A-values, and effecti…

astro-ph.SR2022

Atomic Radiative Data for Oxygen and Nitrogen for Solar Photospheric Studies

Manuel A. Bautista, Maria Bergemann, Helena Carvajal Gallego +3

Our recent re-analysis of the solar photospheric spectra with non-local thermodynamic equilibrium (non-LTE) models resulted in higher metal abundances compared to previous works. W…

astro-ph.HE2022★ 14 cited

Time Dependent Photoionization Modeling of Warm Absorbers in Active Galactic Nuclei

Dev R Sadaula, Manuel A Bautista, Javier A Garcia +1

Warm absorber spectra contain bound-bound and bound-free absorption features seen in the X-ray and UV spectra from many active galactic nuclei (AGN). The widths and centroid energi…

astro-ph.SR2022★ 221 cited

Observational constraints on the origin of the elements. IV: The standard composition of the Sun

Ekaterina Magg, Maria Bergemann, Aldo Serenelli +11

The chemical composition of the Sun is requested in the context of various studies in astrophysics, among them in the calculation of the standard solar models (SSMs), which describ…

astro-ph.SR2021★ 94 cited

Solar oxygen abundance

Maria Bergemann, Richard Hoppe, Ekaterina Semenova +10

Motivated by the controversy over the surface metallicity of the Sun, we present a re-analysis of the solar photospheric oxygen (O) abundance. New atomic models of O and Ni are use…

astro-ph.IM2020

The XSTAR Atomic Database

Claudio Mendoza, Manuel A. Bautista, Jérôme Deprince +7

We describe the atomic database of the XSTAR spectral modeling code, summarizing the systematic upgrades carried out in the past twenty years to enable the modeling of K lines from…