Líneas de investigación: La Vía Láctea y el Grupo Local (MWLG)
La Vía Láctea y el Grupo Local (MWLG)
Publicación
An updated stellar census of the Quintuplet cluster
Context. Found within the central molecular zone, the Quintuplet is one of the most massive young clusters in the Galaxy. As a consequence it offers the...
An X-ray-quiet black hole born with a negligible kick in a massive binary within the Large Magellanic Cloud
Stellar-mass black holes are the final remnants of stars born with more than 15 solar masses. Billions are expected to reside in the Local Group, yet only a few...
Analysing the structure of the bulge with Mira variables
Context. The Galactic bulge at latitude 4 < |b|(deg) < 10 was claimed to show an X-shape, which means that stellar density distributions along the line of sight...
Analysis of absorption lines in the high-resolution spectra of five hot post-AGB candidates
From an analysis of absorption lines in the high-resolution spectra, we have derived the radial velocities, stellar parameters (T eff, log g, wind-strength...
Analysis of chemical abundances in planetary nebulae with [WC] central stars. I. Line intensities and physical conditions
Context. Planetary nebulae (PNe) around Wolf-Rayet [WR] central stars ([WR]PNe) constitute a particular photoionized nebula class that represents about 10% of...
Analysis of chemical abundances in planetary nebulae with [WC] central stars. II. Chemical abundances and the abundance discrepancy factor
Aims: We present the abundance analysis of 12 planetary nebulae ionized by [WC]-type stars and weak-emission-line stars (wels) obtained from high-resolution...
Analysis of integral field spectroscopy observations of the planetary nebula Hen 2-108 and its central star
The study of planetary nebulae provides important constraints for many aspects of stellar and Galactic evolution. Hen 2-108 is a poorly known planetary nebula...
Analysis of possible anomalies in the QSO distribution of the Flesch & Hardcastle catalogue
Aims:A recent catalogue by Flesch & Hardcastle presents two major anomalies in the spatial distribution of QSO candidates: i) an apparent excess of such objects...
Analysis of the CN and CH Molecular Band Strengths in Stars of the Open Cluster NGC 6791
Low-resolution SDSS/SEGUE spectra have been used to study the behavior of the strengths of the CN and CH molecular bands in stars at different evolutionary...