Lines of research: The Milky Way and the Local Group (MWLG)

The Milky Way and the Local Group (MWLG)
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    Andromeda II as a merger remnant
    Using N-body simulations, we study the origin of prolate rotation observed in the kinematic data for Andromeda II (And II), a dwarf spheroidal satellite of M31...