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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 421534.0, MPI für Astronomie / Publikationen_mpia
Exploring the impact of galaxy interactions over seven billion years with CAS
Authors:Miller, S. H.; Jogee, S.; Conselice, C.; Penner, K.; Bell, E.; Zheng, X.; Papovich, C.; Skelton, R.; Somerville, R.; Rix, H. W.; Barazza, F.; Barden, M.; Borch, A.; Beckwith, S.; Caldwell, J.; Häussler, B.; Heymans, C.; Jahnke, K.; McIntosh, D.; Meisenheimer, K.; Peng, C.; Robaina, A.; Sanchez, S.; Wisotzki, L.; Wolf, C.
Language:English
Publisher:ASP
Place of Publication:San Francisco
Date of Publication (YYYY-MM-DD):2008
Title of Proceedings:New Horizons in Astronomy: Frank N. Bash Symposium 2007
Start Page:235
End Page:238
Title of Series:ASP Conf. Ser.
Volume (in Series):393
Name of Conference/Meeting:New Horizons in Astronomy
Review Status:not specified
Audience:Not Specified
Abstract / Description:We explore galaxy assembly over the last seven billion years by characterizing ``normal'' galaxies along the Hubble sequence, against strongly disturbed merging/interacting galaxies with the widely used CAS system of concentration (C), asymmetry (A), and `clumpiness' (S) parameters, as well as visual classification. We analyze Hubble Space Telescope (HST) ACS images of Ëœ4000 intermediate and high mass ( M/ Mo>109) galaxies from the GEMS survey, one of the largest HST surveys conducted to date in two filters. We explore the effectiveness of the CAS criteria [A>S and A>~0.35] in separating normal and strongly disturbed galaxies at different redshifts, and quantify the recovery and contamination rate. We also compare the average star formation rate and the cosmic star formation rate density as a function of redshift between normal and interacting systems identified by CAS.
Comment of the Author/Creator:Date: 2008, August 1, 2008
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/abs/2008ASPC..393..235M [ID No:1]
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