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The curious case of offset bars : markers for a baby galaxy disk or signposts of an interaction with dark matter sub halos?
(University of the Western Cape, 2016)
We have used the Spitzer Survey of Stellar Structure in Galaxies (S⁴G) as a representative sample of the local universe (total of 2352 galaxies in S⁴G) to make a catalog of offset disk barred galaxies. Using the combined ...
The impact of environment and mergers on the H I content of galaxies in hydrodynamic simulations
(University of the Western Cape, 2015)
We quantitatively examine the effects of merger and environment within a cosmological hydrodynamic simulation. We show that our simulation model broadly reproduces the observed scatter in H I at a given stellar mass as ...
Luminous red galaxies in simulations
(2010)
There have been a number of attempts to measure the expansion rate of the Universe using age-dating of Luminous Red Galaxies (LRGs).Assuming stars in LRGs form at the same time, age-dating of two populations of LRGs at ...
The interstellar medium scaling relations in cosmological simulations
(University of the Western Cape, 2022)
This work presents the scaling relations for the redshift zero galaxies in the SIMBA1
cosmological hydrodynamic simulations. The aim is to test the degree to which the
SIMBA simulations reproduce the physical properties ...