Origin and Evolution of Structure and Nucleosynthesis for Galaxies in the Local Group

Abstract

The Milky Way is the product of a complex evolution of generations of mergers, collapse, star formation, supernova and collisional heating, radiative and collisional cooling, and ejected nucleosynthesis. Moreover, all of this occurs in the context of the cosmic expansion, the formation of cosmic filaments, dark-matter halos, spiral density waves, and emerging dark energy. In this review we summarize observational evidence and discuss recent calculations concerning the formation, evolution nucleosynthesis in the galaxies of the Local-Group. In particular, we will briefly summarize observations and simulations for the dwarf galaxies and the two large spirals of the Local Group. We discuss how galactic halos form within the dark matter filaments that define a super-galactic plane. Gravitational interaction along this structure leads to streaming flows toward the two dominant galaxies in the cluster. These simulations and observations also suggest that a significant fraction of the Galactic halo formed as at large distances and then arrived later along these streaming flows. We also consider the insight provided by observations and simulations of nucleosynthesis both within the galactic halo and dwarf galaxies in the Local Group.

updated version includes a number of fixes in references, content, and text

References in corpus (14)

• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• The Kinematics of the Ultra-Faint Milky Way Satellites: Solving the Missing Satellite Problem
• Star Formation and Feedback in Smoothed Particle Hydrodynamic Simulations--I. Isolated Galaxies
• Transients from Initial Conditions in Cosmological Simulations
• A common mass scale for satellite galaxies of the Milky Way
• The Observed properties of Dark Matter on small spatial scales
• Stellar Feedback in Dwarf Galaxy Formation
• The Luminosity Function of the Milky Way Satellites
• A high resolution VLT/FLAMES study of individual stars in the centre of the Fornax dwarf spheroidal galaxy
• The Highly Unusual Chemical Composition of the Hercules Dwarf Spheroidal Galaxy
• The Cold Dark Matter Halos of Local Group Dwarf Spheroidals
• The orbital poles of Milky Way satellite galaxies: a rotationally supported disc-of-satellites
• The mass and velocity anisotropy of the Carina, Fornax, Sculptor and Sextans dwarf spheroidal galaxies
• Discs of Satellites: the new dwarf spheroidals

Cited by in corpus (4)

• On the Origin of the Early Solar System Radioactivities. Problems with the AGB and Massive Star Scenarios
• Impact of sterile neutrino dark matter on core-collapse supernovae
• Star Formation and Gas Phase History of the Cosmic Web
• 3-3-1 Self Interacting Dark Matter and the Galaxy Core-Cusp problem