Zobrazeno 1 - 10
of 231
pro vyhledávání: '"Bautista, Manuel A."'
Autor:
Ding, Yuanze, García, Javier A., Kallman, Timothy R., Mendoza, Claudio, Bautista, Manuel, Harrison, Fiona A., Tomsick, John A., Dong, Jameson
Luminous accretion disks around black holes are expected to have densities of $\sim 10^{15-22}\,$cm$^{-3}$, which are high enough such that plasma physics effects become important. Many of these effects have been traditionally neglected in the calcul
Externí odkaz:
http://arxiv.org/abs/2409.00253
Autor:
Mendoza, Claudio, Méndez-Delgado, José E., Bautista, Manuel, García-Rojas, Jorge, Morisset, Christophe
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 effective collision strengths. Most datasets are reconstructed from the sourc
Externí odkaz:
http://arxiv.org/abs/2304.01298
Autor:
Bautista, Manuel A., Bergemann, Maria, Gallego, Helena Carvajal, Gamrath, Sébastien, Palmeri, Patrick, Quinet, Pascal
Publikováno v:
A&A 665, A18 (2022)
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. When applying the new chemical abundances to Standard Solar Model calcu
Externí odkaz:
http://arxiv.org/abs/2206.14095
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 energies of these features indicate they occur in outflowing gas, and the ou
Externí odkaz:
http://arxiv.org/abs/2205.04708
Autor:
Magg, Ekaterina, Bergemann, Maria, Serenelli, Aldo, Bautista, Manuel, Plez, Bertrand, Heiter, Ulrike, Gerber, Jeffrey M., Ludwig, Hans-Günter, Basu, Sarbani, Ferguson, Jason W., Gallego, Helena Carvajal, Gamrath, Sébastien, Palmeri, Patrick, Quinet, Pascal
Publikováno v:
A&A 661, A140 (2022)
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 describe the evolution of the Sun from the pre-main-sequence to its present a
Externí odkaz:
http://arxiv.org/abs/2203.02255
Autor:
Bergemann, Maria, Hoppe, Richard, Semenova, Ekaterina, Carlsson, Mats, Yakovleva, Svetlana A., Voronov, Yaroslav V., Bautista, Manuel, Nemer, Ahmad, Belyaev, Andrey K., Leenaarts, Jorrit, Mashonkina, Lyudmila, Reiners, Ansgar, Ellwarth, Monika
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 used to perform Non-Local Thermodynamic Equilibrium (NLTE) calculations w
Externí odkaz:
http://arxiv.org/abs/2109.01143
Autor:
Centeno-Bautista, Manuel A., Perez-Sanchez, Andrea V., Amezquita-Sanchez, Juan P., Valtierra-Rodriguez, Martin
Publikováno v:
In Measurement 15 August 2024 236
Autor:
Mendoza, Claudio, Bautista, Manuel A., Deprince, Jérôme, García, Javier A., Gatuzz, Efraín, Gorczyca, Thomas W., Kallman, Timothy R., Palmeri, Patrick, Quinet, Pascal, Witthoeft, Michael C.
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 chemical elements with atomic number $Z\leq 30$ and recent extensions
Externí odkaz:
http://arxiv.org/abs/2012.02041
Autor:
Morisset, Christophe, Luridiana, Valentina, García-Rojas, Jorge, Gómez-Llanos, Verónica, Bautista, Manuel A., Mendoza, Claudio
Publikováno v:
PyNeb. Atoms 2020, 8, 66
PyNeb is a Python package widely used to model emission lines in gaseous nebulae. We take advantage of its object-oriented architecture, class methods, and historical atomic database to structure a practical environment for atomic data assessment. Ou
Externí odkaz:
http://arxiv.org/abs/2009.10586
Autor:
Bergemann, Maria, Gallagher, Andrew J., Eitner, Philipp, Bautista, Manuel, Collet, Remo, Yakovleva, Svetlana A., Mayriedl, Anja, Plez, Bertrand, Carlsson, Mats, Leenaarts, Jorrit, Belyaev, Andrey K., Hansen, Camilla
Manganese (Mn) is a key Fe-group elements, commonly employed in stellar population and nucleosynthesis studies to explore the role of SN Ia. We have developed a new non-local thermodynamic equilibrium (NLTE) model of Mn, including new photo-ionisatio
Externí odkaz:
http://arxiv.org/abs/1905.05200