Context: Deep photometry of crowded fields, such as Galactic globular clusters, is severely limited by the resolution of ground-based telescopes. On the other...
-
PublicationMCAO near-IR photometry of the globular cluster NGC 6388: MAD observations in crowded fields
-
PublicationMeasuring and characterizing the line profile of HARPS with a laser frequency comb
Aims: We study the 2D spectral line profile of the High Accuracy Radial Velocity Planet Searcher (HARPS), measuring its variation with position across the...
-
PublicationMeasuring dark matter flows in merging clusters of galaxies
The Rees-Sciama effect produced in mergers of galaxy clusters is discussed, and an analytical approximation to compute this effect from numerical simulations is...
-
PublicationMELCHIORS. The Mercator Library of High Resolution Stellar Spectroscopy
Aims: Over the past decades, libraries of stellar spectra have been used in a large variety of science cases, including as sources of reference spectra for a...
-
PublicationMembership, rotation, and lithium abundances in the open clusters NGC 2451 A and B
High-resolution spectra of 30 late-type and 9 early-type candidate members of the young (˜50-80 Myr) open clusters NGC 2451 A and B have been analyzed in order...
-
PublicationMenzel 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...
-
PublicationMerger 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...
-
PublicationMerging 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...
-
PublicationMetallicities 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...