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http://dx.doi.org/10.5303/PKAS.2012.27.4.331

ENVIRONMENTAL DEPENDENCE OF STAR FORMATION AND GALAXY TRANSFORMATION IN MERGING GALAXY CLUSTER ABELL 2255: AKARI'S POINT OF VIEW  

Shim, Hyunjin (Department of Earth Science Education, Kyungpook National University)
Publication Information
Publications of The Korean Astronomical Society / v.27, no.4, 2012 , pp. 331-334 More about this Journal
Abstract
We investigate the role of galaxy environment in the evolution of individual galaxies through the AKARI observations of the merging galaxy cluster A2255. MIR diagnostics using N3-S11 colors are adopted to select star-forming galaxies and galaxies in transition between star-forming galaxies and quiescent galaxies. We do not find particular enhancement of star formation rates as a function of galaxy environment, reflected in cluster-centric distance and local surface density of galaxies. Instead, the locations of intermediate MIR-excess galaxies (-1.2 < N3 - S11 < 0.2) show that star-forming galaxies are transformed into passive galaxies in the substructures of A2255, where the local surface density of galaxies is relatively high.
Keywords
galaxies: clusters: individual (A2255); galaxies: photometry; infrared: galaxies;
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1 Abazajian, K., et al., 2004, The Second Data Release of the Sloan Digital Sky Survey, AJ, 128, 502   DOI   ScienceOn
2 Bai, L., et al., 2009, The Infrared Luminosity Functions of Rich Clusters, ApJ, 693, 1840   DOI
3 Bekki, K., 1999, Group-Cluster Merging and the Formation of Starburst Galaxies, ApJ, 510, L15   DOI
4 Bertin, E. & Arnouts, S., 1996, SExtractor: Software for Source Extraction, A&AS, 117, 393   DOI   ScienceOn
5 Chary, R. & Elbaz, D., 2001, Interpreting the Cosmic Infrared Background: Constraints on the Evolution of the Dust-enshrouded Star Formation Rate, ApJ, 556, 562   DOI
6 Davis, D. S. & White, R. E. III, 1998, An X-Ray Temperature Map of the Merging Cluster Abell 2255, ApJ, 492, 57   DOI
7 Fujita, Y., et al., 1999, Is Galactic Star-Formation Activity Increased during Cluster Mergers?, PASJ, 51, L1
8 Hwang, H. S. & Lee, M. G., 2009, Galaxy Activity in Merging Binary Galaxy Clusters, MNRAS, 2009, 397, 2111   DOI   ScienceOn
9 Im, M. et al., 2008, Evolution of Galaxy Clusters from an AKARI Mission Program, CLEVL, 2008, ASPC, 399, 382
10 Ko, J. et al., 2009, The Mid-infrared View of Red Sequence in Abell 2218 with AKARI, ApJ, 695, L198   DOI
11 Piovan, L., Tantalog, R., & Chiosi, C., 2003, Shells of Dust around AGB Stars: Effects on the Intergrated Spectrum of Single Stellar Populations, A&A, 408, 559   DOI   ScienceOn
12 Poggianti, B. M., et al., 2009, The Evolution of Spiral, S0, and Elliptical Galaxies in Clusters, ApJ, 697, L137   DOI
13 Yuan, Q., Zhou, X., & Jiang, Z., 2003, Multicolor Photometry of the Galaxies in A2255 by the Beijing-Arizona-Taiwan-Conneticut Survey and Sloan Digital Sky Survey, ApJS, 149, 53   DOI   ScienceOn