scholarly journals Radial gradients in initial mass function sensitive absorption features in the Coma brightest cluster galaxies

2016 ◽  
Vol 465 (1) ◽  
pp. 192-212 ◽  
Author(s):  
Simon Zieleniewski ◽  
Ryan C. W. Houghton ◽  
Niranjan Thatte ◽  
Roger L. Davies ◽  
Sam P. Vaughan
Keyword(s):  
Mass Function ◽  
Initial Mass Function ◽  
Initial Mass ◽  
Cluster Galaxies ◽  
Brightest Cluster Galaxies ◽  
Absorption Features

Dynamical modelling of brightest cluster galaxies: Constraints on the IMF

2019 ◽  
Vol 14 (S353) ◽  
pp. 257-258
Author(s):  
S. I. Loubser
Keyword(s):  
Stellar Population ◽  
Mass Function ◽  
Stellar Mass ◽  
Initial Mass Function ◽  
Small Subset ◽  
Dynamical Mass ◽  
Cluster Galaxies ◽  
Spatially Resolved ◽  
Brightest Cluster Galaxies ◽  
Massive Clusters

AbstractWe study the stellar and dynamical masses, as well as the stellar populations, of brightest cluster galaxies (BCGs) located in 32 massive clusters, and for a sub-sample of these use the results to place constraints on the Initial Mass Function (IMF). We measure the spatially-resolved stellar population properties of the BCGs, such as recent star formation episodes, and use it to predict their stellar mass-to-light ratios (ϒ*POP). We find that ∼60 per cent of the BCGs have constant ϒ*POP over the radial range (<15 kpc). We also use the stellar and dynamical mass profiles to derive the stellar mass-to-light ratio from dynamics (ϒ*DYN, see Loubser, these proceedings). We directly compare ϒ*POP with ϒ*DYN, and find that for most BCGs, a Salpeter IMF is needed to explain their properties, but we also find a small subset of BCGs for which a Kroupa-like IMF is needed to explain their properties.

Low‐Mass Star Formation and the Initial Mass Function in IC 348

1998 ◽  
Vol 508 (1) ◽  
pp. 347-369 ◽  
Author(s):  
K. L. Luhman ◽  
G. H. Rieke ◽  
C. J. Lada ◽  
E. A. Lada
Keyword(s):  
Star Formation ◽  
Mass Function ◽  
Initial Mass Function ◽  
Initial Mass ◽  
Mass Star ◽  
Low Mass

scholarly journals CHARACTERIZING THE BROWN DWARF FORMATION CHANNELS FROM THE INITIAL MASS FUNCTION AND BINARY-STAR DYNAMICS

2015 ◽  
Vol 800 (1) ◽  
pp. 72 ◽  
Author(s):  
Ingo Thies ◽  
Jan Pflamm-Altenburg ◽  
Pavel Kroupa ◽  
Michael Marks
Keyword(s):  
Binary Star ◽  
Mass Function ◽  
Initial Mass Function ◽  
Initial Mass ◽  
Brown Dwarf

scholarly journals Is the stellar initial mass function universal?

2016 ◽  
Vol 57 (2) ◽  
pp. 2.32-2.36 ◽  
Author(s):  
Ignacio Ferreras ◽  
Francesco La Barbera ◽  
Alexandre Vazdekis
Keyword(s):  
Mass Function ◽  
Initial Mass Function ◽  
Initial Mass ◽  
Stellar Initial Mass Function
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