775 citations · 12.1k across the 141 of their papers we have counts for
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N-body modeling of globular clusters: Masses, mass-to-light ratios and intermediate-mass black holes
Holger Baumgardt
We have determined the masses and mass-to-light ratios of 50 Galactic globular clusters by comparing their velocity dispersion and surface brightness profiles against a large grid…
Diffuse Galactic antimatter from faint thermonuclear supernovae in old stellar populations
Roland M. Crocker, Ashley J. Ruiter, Ivo R. Seitenzahl +10
Our Galaxy hosts the annihilation of a few low-energy positrons every second. Radioactive isotopes capable of supplying such positrons are synthesised in stars, st…
Probing the boundary between star clusters and dwarf galaxies: A MUSE view on the dynamics of Crater/Laevens I
Karina Voggel, Michael Hilker, Holger Baumgardt +5
We present MUSE observations of the debated ultra faint stellar system Crater. We spectroscopically confirm 26 member stars of this system via radial velocity measurements. We deri…
Constraining ultra-compact dwarf galaxy formation with galaxy clusters in the local universe
Joel Pfeffer, Michael Hilker, Holger Baumgardt +1
We compare the predictions of a semi-analytic model for ultra-compact dwarf galaxy (UCD) formation by tidal stripping to the observed properties of globular clusters (GCs) and UCDs…
Limits on the significant mass-loss scenario based on the globular clusters of the Fornax dwarf spheroidal galaxy
Pouria Khalaj, Holger Baumgardt
Many of the scenarios proposed to explain the origin of chemically peculiar stars in globular clusters (GCs) require significant mass-loss () to explain the observed fract…
The Binary Fraction and Mass Segregation in Alpha Persei Open Cluster
Najmeh Sheikhi, Maryam Hasheminia, Pouria Khalaj +3
We have obtained membership probabilities of stars within a field of radius around the centre of the open cluster Alpha Persei using proper motions and photometry fro…