A
A. I. Díaz
Researcher at Autonomous University of Madrid
Publications - 42
Citations - 1448
A. I. Díaz is an academic researcher from Autonomous University of Madrid. The author has contributed to research in topics: Galaxy & Star formation. The author has an hindex of 15, co-authored 42 publications receiving 1338 citations. Previous affiliations of A. I. Díaz include Spanish National Research Council.
Papers
More filters
Journal ArticleDOI
The O3N2 and N2 abundance indicators revisited: improved calibrations based on CALIFA and T e-based literature data
R. A. Marino,F. F. Rosales-Ortega,F. F. Rosales-Ortega,Sebastián F. Sánchez,A. Gil de Paz,J. Vílchez,D. Miralles-Caballero,C. Kehrig,Enrique Pérez-Montero,Vallery Stanishev,Jorge Iglesias-Páramo,A. I. Díaz,África Castillo-Morales,Robert C. Kennicutt,Angel R. Lopez-Sanchez,Angel R. Lopez-Sanchez,Lluís Galbany,Rubén García-Benito,D. Mast,Jairo Méndez-Abreu,Jairo Méndez-Abreu,Ana Monreal-Ibero,Bernd Husemann,C. J. Walcher,Begoña García-Lorenzo,Begoña García-Lorenzo,Josefa Masegosa,A. Del Olmo Orozco,A. Mourao,Bodo L. Ziegler,M. Mollá,Polychronis Papaderos,Patricia Sanchez-Blazquez,R. M. González Delgado,Jesús Falcón-Barroso,Jesús Falcón-Barroso,Markus Roth,G. van de Ven,Califa Team +38 more
TL;DR: In this paper, the most widely used empirical oxygen calibrations, O3N2 and N2, by using new direct abundance measurements are reviewed, and the expected uncertainty of these calibrations as a function of the index value or abundance derived is analyzed.
Journal ArticleDOI
The Mass-Metallicity relation explored with CALIFA: I. Is there a dependence on the star formation rate?
Samuel Sanchez,F. F. Rosales-Ortega,Bruno Jungwiert,Jorge Iglesias-Páramo,José M. Vílchez,Raffaella Anna Marino,C. J. Walcher,Bernd Husemann,Damian Mast,Ana Monreal-Ibero,R. Cid Fernandes,Estefania Perez,R. M. González Delgado,Rubén García-Benito,Lluís Galbany,G. van de Ven,Knud Jahnke,Hector Flores,Jonathan Bland-Hawthorn,Angel R. Lopez-Sanchez,Vallery Stanishev,D. Miralles-Caballero,A. I. Díaz,Patricia Sanchez-Blazquez,M. Mollá,Anna Gallazzi,P. Papaderos,J. M. Gomes,Nicolas Gruel,Isabel Pérez,T. Ruiz-Lara,Estrella Florido,A. de Lorenzo-Cáceres,J. Mendez-Abreu,C. Kehrig,Markus Roth,Bodo L. Ziegler,J. Alves,Lutz Wisotzki,D. Kupko,Andreas Quirrenbach,Dominik J. Bomans +41 more
TL;DR: In this article, the authors presented the results on the study of the global and local M-Z relation based on the first data available from the CALIFA survey (150 galaxies) and computed the integrated and spatially resolved stellar masses and surface densities, based on SDSS photometric data.
Journal ArticleDOI
Imprints of galaxy evolution on H II regions - Memory of the past uncovered by the CALIFA survey
Sebastián F. Sánchez,Enrique Pérez,F. F. Rosales-Ortega,D. Miralles-Caballero,Angel R. Lopez-Sanchez,Angel R. Lopez-Sanchez,Jorge Iglesias-Páramo,R. A. Marino,L. Sánchez-Menguiano,L. Sánchez-Menguiano,Rubén García-Benito,D. Mast,M. A. Mendoza,Polychronis Papaderos,Simon Ellis,Simon Ellis,Lluís Galbany,C. Kehrig,Ana Monreal-Ibero,R. M. González Delgado,Mercedes Mollá,Bodo L. Ziegler,A. de Lorenzo-Cáceres,Jairo Méndez-Abreu,Joss Bland-Hawthorn,S. Bekeraitė,Markus Roth,Anna Pasquali,A. I. Díaz,Dominik J. Bomans,G. van de Ven,Lutz Wisotzki +31 more
TL;DR: In this article, the authors explore the connections between the ionization conditions and the properties of the overall underlying stellar population (ionizing or not-ionizing) in H II regions, in order to uncover the actual physical connection between them.
Journal ArticleDOI
A new scaling relation for HII regions in spiral galaxies: unveiling the true nature of the mass-metallicity relation
F. F. Rosales-Ortega,Sebastián F. Sánchez,Jorge Iglesias-Páramo,A. I. Díaz,José M. Vílchez,Joss Bland-Hawthorn,Bernd Husemann,Damian Mast +7 more
TL;DR: In this paper, the existence of a local relation between galaxy surface mass density, gas metallicity, and star-formation rate density using spatially-resolved optical spectroscopy of HII regions in the local Universe was demonstrated.
Journal ArticleDOI
Imprints of galaxy evolution on H ii regions Memory of the past uncovered by the CALIFA survey
Sebastián F. Sánchez,Estefania Perez,F. F. Rosales-Ortega,D. Miralles-Caballero,Angel R. Lopez-Sanchez,Jorge Iglesias-Páramo,Raffaella Anna Marino,L. Sánchez-Menguiano,Rubén García-Benito,D. Mast,M. A. Mendoza,P. Papaderos,Simon Ellis,Lluís Galbany,C. Kehrig,Ana Monreal-Ibero,R. M. González Delgado,M. Mollá,Bodo L. Ziegler,A. de Lorenzo-Cáceres,Jairo Méndez-Abreu,Joss Bland-Hawthorn,S. Bekeraite,Markus Roth,Anna Pasquali,A. I. Díaz,Dominik J. Bomans,G. van de Ven,Lutz Wisotzki +28 more
TL;DR: In this article, the authors used the Hii regions catalogue from the CALIFA survey to explore their distribution across the classical [OIII/Hbeta vs. [NII]/Halpha diagnostic diagram, and how it depends on the oxygen abundance, ionization parameter, electron density, and dust attenuation.