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Photometric redshift accuracy in AKARI Deep Surveys
M. Negrello, S. Serjeant, C. Pearson +11
We investigate the photometric redshift accuracy achievable with the AKARI infrared data in deep multi-band surveys, such as in the North Ecliptic Pole field. We demonstrate that t…
Galaxy Clusters at 0.9<z<1.7 in the AKARI NEP deep field
Tomotsugu Goto, Hitoshi Hanami, Myungshin Im +11
There is a huge gap between properties of red-sequence selected massive galaxy clusters at z<1 and Lyman-break selected proto-clusters at z>3. It is important to understand when an…
Mapping dusty star formation in and around a cluster at z=0.81 by wide-field imaging with AKARI
Yusei Koyama, Tadayuki Kodama, Kazuhiro Shimasaku +8
We present environmental dependence of dusty star forming activity in and around the cluster RXJ1716.4+6708 at z=0.81 based on wide-field and multi-wavelength observations with Sup…
Optical to Near-IR Spectrum of a Massive Evolved Galaxy at z = 1.26
Y. Matsuoka, B. A. Peterson, S. Oyabu +6
We present the optical to near-infrared (IR) spectrum of the galaxy TSPS J1329-0957, a red and bright member of the class of extremely red objects (EROs) at z = 1.26. This galaxy w…
Number Density Evolution of Ks -band Selected High Redshift Galaxy Populations in the AKARI North Ecliptic Pole Field
Koji Imai, Chris P. Pearson, Hideo Matsuhara +5
We present the number counts of Ks-band selected high redshift galaxy populations such as extremely red objects (EROs), B, z & K -band selected galaxies (BzKs) and distant red gala…
Low-Ionization Emission Regions in Quasars: Gas Properties Probed with Broad O I and Ca II Lines
Y. Matsuoka, K. Kawara, S. Oyabu
We have compiled the emission-line fluxes of O I 8446, O I 11287, and the near-IR Ca II triplet (8579) observed in 11 quasars. These lines are considered to emerge from the same ga…