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| Paper: |
Deep- and Wide-field K-band Imaging of the Subaru Deep Field: Implications for Galaxy Formation at z ∼ 2 |
| Volume: |
399, Panoramic Views of Galaxy Formation and Evolution |
| Page: |
274 |
| Authors: |
Motohara, K.; Hayashi, M.; Shimasaku, K.; Yoshida, M.; Kashikawa, N.; Kodama, T. |
| Abstract: |
We have been carrying out K-band wide-field and deep imaging of the Subaru Deep Field (SDF) using WFCAM on UKIRT. The overlap with the optical images exceeds 700 arcmin,sup>2 with the a limiting magnitude of ∼ 23.5AB. The K-band number counts of pBzKs show a ”knee” around 20.5AB, which suggests the deficit of < 1011M⊙ passive galaxies at z ∼ 1.5. This can be explained by the down-sizing evolution of galaxies, and fraction of galaxies are still under formation phase at z ∼ 1.5. |
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