48 citations · 105 across the 12 of their papers we have counts for
12 papers
The relevance of the cosmic microwave background for cosmology
Pavel Kroupa, Eda Gjergo, Nikolaos Samaras
Within the Hot Big Bang picture, as usually interpreted in the standard LCDM framework and its hierarchical scenario for elliptical galaxy assembly, the cosmic microwave background…
Self-regulated galaxy evolution within a self-consistently varying galaxy-wide IMF
Lukas Hof, Pavel Kroupa, Gerhard Hensler +1
Semi-analytical evolution models of galaxies are a useful and computationally inexpensive tool for fast assessment of individual properties and their evolution. In this work, speci…
The mmax-Mecl relation in the LEGUS clusters
Marie Zinnkann, Tereza Jerabkova, Zhiqiang Yan +6
The relation between the maximum stellar mass in a very young cluster (mmax) and the total stellar mass of the cluster (Mecl), known as the mmax-Mecl relation, remains debated in t…
Origin of open clusters revealed by the evolution of the m_maxM_ecl relation
J. W. Zhou, Sami Dib, Pavel Kroupa
Using the Gaia DR3 open cluster catalog, we identified the most massive star in each observed cluster. Examining the m_maxM_cluster relations across different age ranges, we fin…
Revisiting the missing mass problem in MOND for nearby galaxy clusters
Dong Zhang, Akram Hasani Zonoozi, Pavel Kroupa
In the framework of Milgromian dynamics (MOND), galaxy clusters are known to exhibit a residual missing mass problem, with the baryonic mass falling short of the dynamical mass by…
The Initial Mass Function as the Equilibrium State of a Variational Process: why the IMF cannot be sampled stochastically
Eda Gjergo, Zhiyu Zhang, Pavel Kroupa
The stellar initial mass function (sIMF) is often treated as a stochastic probability distribution, yet such an interpretation implies Poisson noise that is inconsistent with growi…
Massive Star Formation at Supersolar Metallicities: Constraints on the Initial Mass Function
Eda Gjergo, Zhiyu Zhang, Pavel Kroupa +6
Metals enhance the cooling efficiency of molecular clouds, promoting fragmentation. Consequently, increasing the metallicity may boost the formation of low-mass stars. Within the i…
The Impact of Early Massive Galaxy Formation on the Cosmic Microwave Background
Eda Gjergo, Pavel Kroupa
The Cosmic Microwave Background (CMB) anisotropies, corrected for foreground effects, form the foundation of cosmology and support the Big Bang model. A previously overlooked foreg…
The p-Laplacian as a Framework for Generalizing Newtonian Gravity and MoND
D. Scherer, J. Pflamm-Altenburg, P. Kroupa +1
The Radial Acceleration Relation (RAR) follows from Milgromian gravitation (MoND). Velocity dispersion data of many dwarf spheroidal galaxies (dSphs) and galaxy clusters have been…
Distribution of star formation rates during the rapid assembly of NGC 1399 as deduced from its globular cluster system
C. Schulz, M. Hilker, P. Kroupa +1
Ultra-compact dwarf galaxies (UCDs) share many properties with globular clusters (GCs) and are found in similar environments. A large sample of UCDs and GCs around NGC 1399, the ce…
Massive runaway stars in the Small Magellanic Cloud
V. V. Gvaramadze, J. Pflamm-Altenburg, P. Kroupa
Using archival Spitzer Space Telescope data, we identified for the first time a dozen runaway OB stars in the Small Magellanic Cloud (SMC) through the detection of their bow shocks…
Massive runaway stars in the Large Magellanic Cloud
V. V. Gvaramadze, P. Kroupa, J. Pflamm-Altenburg
The origin of massive field stars in the Large Magellanic Cloud (LMC) has long been an enigma. The recent measurements of large offsets (~100 km/s) between the heliocentric radial…