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Merging Galaxy Cluster Abell 2255 in Mid-Infrared
Hyunjin Shim, Myungshin Im, Hyung Mok Lee +11
We present the mid-infrared (MIR) observation of a nearby galaxy cluster, Abell 2255 by the AKARI space telescope. Using the AKARI's continuous wavelength coverage between 3-24 mic…
Luminosity Functions of Local Infrared Galaxies with AKARI: Implications to the Cosmic Star Formation History and AGN Evolution
Tomotsugu Goto, Stephane Arnouts, Hanae Inami +15
Infrared (IR) luminosity is fundamental to understanding the cosmic star formation history and AGN evolution. The AKARI IR space telescope performed all sky survey in 6 IR bands (9…
A Large Number of z > 6 Galaxies around a QSO at z = 6.43: Evidence for a Protocluster?
Yousuke Utsumi, Tomotsugu Goto, Nobunari Kashikawa +4
QSOs have been thought to be important for tracing highly biased regions in the early universe, from which the present-day massive galaxies and galaxy clusters formed. While overde…
A deep radio survey of the AKARI North Ecliptic Pole Field - WSRT 20 cm Radio survey description, observations and data reduction
Glenn J. White, Chris Pearson, Robert Braun +17
The Westerbork Radio Synthesis Telescope, WSRT, has been used to make a deep radio survey of an ~ 1.7 sq degree field coinciding with the AKARI North Ecliptic Pole Deep Field. The…
Polycyclic aromatic hydrocarbon (PAH) luminous galaxies at z~1
T. Takagi, Y. Ohyama, T. Goto +14
Using an AKARI multi-wavelength mid-infrared (IR) survey, we identify luminous starburst galaxies at z> 0.5 based on the PAH luminosity, and investigate the nature of these PAH-sel…
Evolution of Infrared Luminosity functions of Galaxies in the AKARI NEP-Deep field: Revealing the cosmic star formation history hidden by dust
Tomotsugu Goto, T. Takagi, H. Matsuhara +19
Dust-obscured star-formation becomes much more important with increasing intensity, and increasing redshift. We aim to reveal cosmic star-formation history obscured by dust using d…