Journal: Astronomy and Astrophysics

  • Publication
    Menzel 3: Dissecting the ant
    The structure and kinematics of the bipolar nebula Mz 3 have been investigated by means of HST, CTIO and ESO images and spectra. At least four distinct outflows...
  • Publication
    Merger induced clump formation in distant infrared luminous starburst galaxies
    While the formation of stellar clumps in distant galaxies is usually attributed to gravitational violent disk instabilities, we show here that major mergers...
  • Publication
    Merging in the common envelope and the origin of early R-type stars
    Context. Binary systems experiencing one or two common envelope episodes during the red giant branch or the Hertzsprung gap phases can produce a single star...
  • Publication
    Metallicities in M dwarfs: Investigating different determination techniques
    Deriving metallicities for solar-like stars follows well-established methods, but for cooler stars such as M dwarfs, the determination is much more complicated...
  • Publication
    Metallicity dependence of turbulent pressure and macroturbulence in stellar envelopes
    Macroturbulence, introduced as a fudge to reproduce the width and shape of stellar absorption lines, reflects gas motions in stellar atmospheres. While in cool...
  • Publication
    Metallicity distribution of red giants in the Inner Galaxy from near infrared spectra
    Context: The existence in the Milky Way of either a long thin bar with a half length of 4.5 kpc and a position angle of around 45° with respect to the Sun...
  • Publication
    Metallicity effect on stellar granulation detected from oscillating red giants in open clusters
    Context. The effect of metallicity on the granulation activity in stars, and hence on the convective motions in general, is still poorly understood. Available...
  • Publication
    Metallicity, temperature, and gravity scales of M subdwarfs
    Aims: The aim of the project is to define metallicity/gravity/temperature scales for different spectral types of metal-poor M dwarfs. Methods: We obtained...
  • Publication
    MHD seismology of coronal loops using the period and damping of quasi-mode kink oscillations
    Aims:We combine the magnetohydrodynamic (MHD) theory of resonantly damped quasi-mode kink oscillations with observational estimates of the period and damping of...