Matsuhara, Hideo; Wada, Takehiko; Oyabu, Shinki; Takagi, Toshinobu; Pearson, Chris P.; Malkan, Matthew A.; White, Glenn J.; Negrello, Mattia; Serjeant, Stephen; Ohyama, Youichi; Goto, Tomotsugu; Im, Myungshin; Lee, Hyung Mok; Lee, Myung Gyoon; Imai, Koji; Hanami, Hitoshi; Ishigaki, Tsuyoshi; Wada, Kensuke and Nakagawa, Takao
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We describe observational characteristics of three Extremely Red MIR-bright Objects (ERMOs, satisfying R -  ≥ 6.5 AB mag) found in the AKARI North Ecliptic Pole (NEP) deep field at z=1.5-2.2, showing broad Mg II emission (~5000 km sec-1) while their broad-band spectral energy distributions (SEDs) at optical and mid-infrared are power-law, similar to that of the type- 2 AGN. Since their SEDs cannot be explained solely by any AGN dust torus templates, we propose that the stellar population co-exists with the AGN dust torus. The interstellar dust clouds associated with the stellar population may be responsible for the extinction of the broad-line regions.
|Item Type:||Conference Item|
|Copyright Holders:||2009 Astronomical Society of the Pacific|
|Extra Information:||AKARI, a light to illuminate the misty universe
Proceedings of a conference held at Fukutake Hall, The University of Tokyo, Tokyo, Japan 16–19 February 2009.
Astronomical Society of the Pacific Conference Series Vol.418
Edited by Takashi Onaka, Glenn J. White, Takao Nakagawa, Issei Yamamura
e-book ISBN: 978-1-58381-717-9
|Academic Unit/Department:||Science > Physical Sciences|
|Interdisciplinary Research Centre:||Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)|
|Depositing User:||Astrid Peterkin|
|Date Deposited:||06 Jan 2011 10:52|
|Last Modified:||20 Nov 2012 19:21|
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