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Interacting Galaxies in the A901/902 Supercluster with STAGES
A. L. Heiderman, S. Jogee, I. Marinova +22
We present a study of galaxy mergers and the influence of environment in the Abell 901/902 supercluster at z~0.165. We use HST ACS F606W data from the STAGES survey, COMBO-17, Spit…
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…
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…
Near-IR Galaxy Counts and Evolution from the Wide-Field ALHAMBRA survey
D. Cristobal-Hornillos, J. A. L. Aguerri, M. Moles +19
The ALHAMBRA survey aims to cover 4 square degrees using a system of 20 contiguous, equal width, medium-band filters spanning the range 3500 A to 9700 A plus the standard JHKs filt…
GEMINI 3D spectroscopy of BAL+IR+Fe II QSOs: II. IRAS 04505-2958 an explosive QSO with hypershell and a new scenario for galaxy formation and galaxy end
S. Lipari, M. Bergmann, S. F. Sanchez +9
From a study of BAL + IR + Fe II QSOs (using deep Gemini GMOS-IFU spectroscopy) new results are presented: for IRAS 04505-2958. Specifically, we have studied in detail the out flow…