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| Paper: |
Panoramic and Multi-Wavelength Study of the Distant Cluster RXJ1716 at z = 0.81 |
| Volume: |
399, Panoramic Views of Galaxy Formation and Evolution |
| Page: |
361 |
| Authors: |
Koyama, Y.; Kodama, T.; Tanaka, M.; Shimasaku, K.; Okamura, S. |
| Abstract: |
We study galaxies in and around the distant cluster RXJ1716 (z = 0.81) using deep and panoramic optical to mid-infrared imaging data obtained with Suprime-Cam on Subaru and IRC on the AKARI satellite. We find that the cluster member candidates detected at 15 μm are preferentially found in medium-density environments such as subclumps or filaments around the cluster. This suggests that the star-formation activity in galaxies is enhanced in those regions due to some environmental effects specific to such medium-density environments. This is before it is completely truncated as a consequence of quick gas consumption and/or removal. |
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