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Less than 10 percent of star formation in z=0.6 massive galaxies is triggered by major interactions
Aday R. Robaina, Eric F. Bell, Rosalind E. Skelton +26
Both observations and simulations show that major tidal interactions or mergers between gas-rich galaxies can lead to intense bursts of starformation. Yet, the average enhancement…
The effect of dry mergers on the color-magnitude relation of early-type galaxies
Rosalind E. Skelton, Eric F. Bell, Rachel S. Somerville
We investigate the effect of dry merging on the color-magnitude relation (CMR) of galaxies and find that the amount of merging predicted by a hierarchical model results in a red se…
The Norma cluster (ACO3627): II. The near infrared K_s-band luminosity function
R. E. Skelton, P. A. Woudt, R. C. Kraan-Korteweg
A deep K_s-band photometric catalogue of galaxies at the core of the rich, nearby Norma cluster (ACO3627) is presented. The survey covers about 45 by 45 square arcmin (slightly les…
History of Galaxy Interactions and their Impact on Star Formation over the Last 7 Gyr from GEMS
Shardha Jogee, Sarah H. Miller, Kyle Penner +22
We perform a comprehensive estimate of the frequency of galaxy mergers and their impact on star formation over z~0.24--0.80 (lookback time T_b~3--7 Gyr) using 3698 (M*>=1e9 Msun) g…
The Effect of Dry Mergers on the Color-Magnitude Relation
Rosalind E. Skelton, Eric F. Bell, Rachel S. Somerville
We investigate the effect of gas-poor (so-called "dry") mergers on the color-magnitude relation (CMR) of early-type galaxies through a simple toy model and compare with low-z obser…