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Structure, Kinematics, and Chemical Enrichment Patterns after Major Gas-Rich Disc-Disc Mergers
Simon Richard, Chris B. Brook, Hugo Martel +3
We used an N-body smoothed particle hydrodynamics algorithm, with a detailed treatment of star formation, supernovae feedback, and chemical enrichment, to perform eight simulations…
Are Dry Mergers Dry, Moist, or Wet?
Patricia Sanchez-Blazquez, Brad K. Gibson, Daisuke Kawata +2
We present a spectral analysis of a sample of red-sequence galaxies identified by van Dokkum (2005) as dry merger remnants and ongoing dry mergers. Kinematics, stellar population a…
The Origin of the Light Distribution in Spiral Galaxies
Patricia Sanchez-Blazquez, Stephanie Courty, Brad Gibson +1
We analyse a high-resolution, fully cosmological, hydrodynamical disc galaxy simulation, to study the source of the double-exponential light profiles seen in many stellar discs, an…
The ESO Distant Cluster Sample: galaxy evolution and environment out to z=1
Bianca M. Poggianti, Alfonso Aragon-Salamanca, Steven Bamford +25
The ESO Distant Cluster Survey (EDisCS, P.I. Simon D.M. White, LP 166.A-0162) is an ESO large programme aimed at studying clusters and cluster galaxies at z=0.4-1. How different is…
Evolution of Cluster Red-Sequence Galaxies from redshift 0.8 to 0.4: ages, metallicities and morphologies
P. Sanchez-Blazquez, P. Jablonka, S. Noll +14
We present a comprehensive analysis of the stellar population properties (age, metallicity and the alpha-element enhancement [E/Fe]) and morphologies of red-sequence galaxies in 24…
The Chemical Evolution of Globular Clusters I. Reactive Elements and Non-Metals
Andrea Marcolini, Brad K. Gibson, Amanda I. Karakas +1
We propose a new chemical evolution model aimed at explaining the chemical properties of globular clusters (GC) stars. Our model depends upon the existence of (i) a peculiar pre-en…