187 citations · 598 across the 7 of their papers we have counts for
7 papers
Primordial helium abundance determination using sulphur as metallicity tracer
Vital Fernández, Elena Terlevich, Angeles I. Díaz +2
The primordial helium abundance is calculated using sulphur as metallicity tracer in the classical methodology (with as an extrapolation of to zero metals). The cal…
Understanding chemical evolution in resolved galaxies -- I The local star fraction-metallicity relation
Y. Ascasibar, M. Gavilán, N. Pinto +3
This work studies the relation between gas-phase oxygen abundance and stellar-to-gas fraction in nearby galaxies. We first derive the theoretical prediction, and argue that this re…
PPAK Wide field Integral Field Spectroscopy of NGC 628 III. Stellar population properties
Patricia Sanchez-Blazquez, Fabian Rosales-Ortega, Angeles Diaz +1
We present a stellar population analysis of the nearby, face-on, SA(s)c galaxy, NGC628, which is part of the PPAK IFS Nearby Galaxies Survey (PINGS). The data cover a field of view…
Integral field spectroscopy of a sample of nearby galaxies: II. Properties of the H ii regions
S. F. Sanchez, F. F. Rosales-Ortega, R. A. Marino +17
In this work we analyze the spectroscopic properties of a large number of H ii regions, \sim2600, located in 38 galaxies. The sample of galaxies has been assembled from the face-on…
A new scaling relation for HII regions in spiral galaxies: unveiling the true nature of the mass-metallicity relation
F. F. Rosales-Ortega, S. F. Sánchez, J. Iglesias-Páramo +5
We demonstrate the existence of a -local- relation between galaxy surface mass density, gas metallicity, and star-formation rate density using spatially-resolved optical spectrosco…
Integral Field Spectroscopy based Hα sizes of local Luminous and Ultraluminous Infrared Galaxies. A Direct Comparison with high-z Massive Star Forming Galaxies
S. Arribas, L. Colina, A. Alonso-Herrero +5
Aims. We study the analogy between local U/LIRGs and high-z massive SFGs by comparing basic Hα structural characteristics, such as size, and luminosity (and SFR) surface density, i…
PPAK Wide-field Integral Field Spectroscopy of NGC 628: II. Emission line abundance analysis
F. F. Rosales-Ortega, A. I. Díaz, R. C. Kennicutt +1
In this second paper of the series, we present the 2-dimensional (2D) emission line abundance analysis of NGC 628, the largest object within the PPAK Integral Field Spectroscopy (I…