Takagi, T.; Ohyama, Y.; Matsuhara, H.; Wada, T.; Oyabu, S.; Goto, T.; Hanami, H.; Pearson, C. P.; Serjeant, S.; Negrello, M.; White, G. J.; Lee, H. M.; Im, M. and Malkan, M.
|DOI (Digital Object Identifier) Link:||http://dx.doi.org/10.1063/1.3458560|
|Google Scholar:||Look up in Google Scholar|
Large area surveys in the infrared wavelengths have revealed a significant evolution of the star formation activity of the universe in the past. Extragalactic surveys we have conduced with AKARI towards the north ecliptic pole (NEP) are unique, in terms of a comprehensive wavelength coverage from 2 to 24 µm using all 9 photometric bands of the IRC. This includes new wavelength windows for extragalactic surveys, such as 18 µm. We demonstrate that this IRC all-band photometry is capable of tracing a steep rise in the flux at the blue side of the polycyclic aromatic hydrocarbon (PAH) 6.2 µm emission feature of infrared luminous galaxies at z<1. Starburst-dominated ULIRGs are identified using IRC all-band photometry. The PAH-to-total IR luminosity ratio of these starburst ULIRGs is systematically higher than that of local ULIRGs. The nature of ULIRGs could be different from local ones even at z~1.
|Item Type:||Conference Item|
|Copyright Holders:||2010 American Institute of Physics|
|Extra Information:||Published in AIP Conf. Proc. Volume 1240, Issue 1|
|Academic Unit/Department:||Science > Physical Sciences
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||Astrid Peterkin|
|Date Deposited:||13 Jan 2011 12:26|
|Last Modified:||15 Jan 2016 15:23|
|Share this page:|