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oMEGACat III. Multi-band photometry and metallicities reveal spatially well-mixed populations within Centauri's half-light radius
M. S. Nitschai, N. Neumayer, M. Häberle +15
Centauri, the most massive globular cluster in the Milky Way, has long been suspected to be the stripped nucleus of a dwarf galaxy that fell into the Galaxy a long time ago. Th…
The MAGPI survey: The interdependence of the mass, star formation rate, and metallicity in galaxies at z~0.3
M. Koller, B. Ziegler, B. I. Ciocan +16
Star formation rates (SFRs), gas-phase metallicities, and stellar masses are crucial for studying galaxy evolution. The different relations resulting from these properties give ins…
Fast-moving stars around an intermediate-mass black hole in Omega Centauri
Maximilian Häberle, Nadine Neumayer, Anil Seth +15
Black holes have been found over a wide range of masses, from stellar remnants with masses of 5-150 solar masses (Msun), to those found at the centers of galaxies with Msu…
The effects of environment on galaxies' dynamical structures: From simulations to observations
Yuchen Ding, Ling Zhu, Annalisa Pillepich +4
We studied the effects of cluster environments on galactic structures by using the TNG50 cosmological simulation and observed galaxies in the Fornax cluster. We focused on galaxies…
oMEGACat II -- Photometry and proper motions for 1.4 million stars in Omega Centauri and its rotation in the plane of the sky
Maximilian Häberle, Nadine Neumayer, Andrea Bellini +15
Omega Centauri ( Cen) is the most massive globular cluster of the Milky Way. It is thought to be the nucleus of an accreted dwarf galaxy because of its high mass and its complex…
Shapes of dark matter haloes with discrete globular cluster dynamics: The example of NGC 5128 (Centaurus A)
Tadeja Veršič, Marina Rejkuba, Magda Arnaboldi +7
Within the CDM cosmology, dark matter haloes are expected to deviate from spherical symmetry. Constraining the halo shapes at large galactocentric distances is challenging due t…
Baryonic properties of nearby galaxies across the stellar-to-total dynamical mass relation
Laura Scholz-Diaz, Ignacio Martin-Navarro, Jesus Falcon-Barroso +2
In the standard cosmological model, the assembly of galaxies is primarily driven by the growth of their host dark matter halos. At the center of these halos, however, baryonic proc…
Investigating black hole accretion disks as potential polluter sources for the formation of enriched stars in globular clusters
Laurane Fréour, Alice Zocchi, Glenn van de Ven +1
Accretion disks surrounding stellar mass black holes (BHs) have been suggested as potential locations for the nucleosynthesis of light elements, which are our primary observational…
From gas to stars: MUSEings on the internal evolution of IC 1613
S. Taibi, G. Battaglia, M. M. Roth +9
The kinematics and chemical composition of stellar populations of different ages provide crucial information about the evolution of a galaxy. We aim to provide such information for…
Centauri: A MUSE discovery of a counter-rotating core
Renuka Pechetti, Sebastian Kamann, Davor Krajnovic +7
Centauri is considered the most massive globular cluster of the Milky Way and likely the former nuclear star cluster of a galaxy accreted by the Milky Way. It is speculated to…