Galaxy Types


Do you know a difference between a dwarf spheroidal and a dwarf elliptical? This poster shows all the major morphological and other types of galaxies based on different criteria. Mass, radius, luminosity, and surface brightness, µ, is provided to orient yourself quickly in the puzzling world of galaxies.

Continue reading “Galaxy Types”

LambdaCDM and Galaxies


A poster about our universe, in particular the LambdaCDM cosmology and galaxies. Evolution of the universe via hierarchical clustering can be tracked from the primordial photon-baryonic fluid at the age of ~ 379 kyr (center left) through towards first stars, galaxies, galaxy clusters and Laniakea. Evidence for dark matter and dark energy, Λ, is reviewed. Additional information is provided on the distance ladder—ways astronomers use to measure distances—and the AGN Paradigm that explains all active galaxies depending on the line of sight.

Continue reading “LambdaCDM and Galaxies”

Stellar-Mass Objects


A poster with the most common objects you will find in a galaxy, most are of stellar mass. Evolution can be tracked from left to right. Start at the interstellar dust and gas (center left) and progress right-ward, as the nebula evolves into a young stellar object, becomes a star and evolves on the main sequence. General scenarios of stellar evolution are shown depending on the mass, with end products being brown and red dwarfs, neutron stars and black holes, supernova explosions, and white dwarfs.

Continue reading “Stellar-Mass Objects”