525 citations · 3.6k across the 35 of their papers we have counts for
6 papers · 1 filter
Chemo-Archaeological Downsizing in a Hierarchical Universe: Impact of a Top Heavy IGIMF
I. D. Gargiulo, S. A. Cora, N. D. Padilla +6
We make use of a semi-analytical model of galaxy formation to investigate the origin of the observed correlation between [a/Fe] abundance ratios and stellar mass in elliptical gala…
The galaxy-wide IMF of dwarf late-type to massive early-type galaxies
Carsten Weidner, Pavel Kroupa, Jan Pflamm-Altenburg +1
Observational studies are showing that the galaxy-wide stellar initial mass function are top-heavy in galaxies with high star-formation rates (SFRs). Calculating the integrated gal…
The (galaxy-wide) IMF in giant elliptical galaxies: From top to bottom
Carsten Weidner, Ignacio Ferreras, Alexandre Vazdekis +1
Recent evidence based independently on spectral line strengths and dynamical modelling point towards a non-universal stellar Initial Mass Function (IMF), probably implying an exces…
The stellar and sub-stellar IMF of simple and composite populations
Pavel Kroupa, Carsten Weidner, Jan Pflamm-Altenburg +4
The current knowledge on the stellar IMF is documented. It appears to become top-heavy when the star-formation rate density surpasses about 0.1Msun/(yr pc^3) on a pc scale and it m…
Top-heavy integrated galactic stellar initial mass functions (IGIMFs) in starbursts
Carsten Weidner, Pavel Kroupa, Jan Pflamm-Altenburg
Star formation rates (SFR) larger than 1000 Msun/ yr are observed in extreme star bursts. This leads to the formation of star clusters with masses > 10^6 Msun in which crowding of…
Applications of the IGIMF-theory to the astrophysics of galaxies
Jan Pflamm-Altenburg, Carsten Weidner, Pavel Kroupa
The functional form of the galaxy-wide stellar initial mass function is of fundamental importance for understanding galaxies. So far this stellar initial mass function has been ass…