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AKARI Deep Field South: spectroscopic observations of infrared sources

Sedgwick, Chris; Serjeant, Stephen; Pearson, Chris; Matsuura, Shuji; Shirahata, Mai; Matsuhara, Hideo; Marchetti, Lucia; White, Glenn J.; Vaccari, Mattia; Baronchelli, Ivano; Rodighiero, Giulia; Hadsukade, Bunyo; Clements, David L. and Amber, Simon (2017). AKARI Deep Field South: spectroscopic observations of infrared sources. Publications of The Korean Astronomical Society, 32(1) pp. 281–285.

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We present a summary of our spectroscopic redshift catalogue of 404 sources in the AKARI Deep Field South (ADF-S). We have used the AAOmega spectrograph to target mid-infrared and far-infrared sources selected primarily from AKARI observations in this field for which we were able to obtain optical counterparts. Our sources with identified redshifts include 316 with Hα detections at z ≤ 0.345 and 15 sources at z > 1 with MgII or Lα emission lines. About 13% of our z ≤ 0.345 sources are dominated by active galactic nuclei (AGN) emission, although many show emission from both star formation and AGNs. The median Balmer decrement is 5.9. Ultra-luminous infrared galaxies (ULIRGs) were found only in the higher-redshift sources. Optical and near infrared data will be available shortly, enabling calibration of the line luminosities and spectral energy distribution (SED) fitting for these sources.

Item Type: Journal Item
Copyright Holders: 2017 The Korean Astronomical Society
ISSN: 2287-6936
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetPP/D002400/1STFC
Not Set2006/R4-IJPRoyal Society
Not Set3108Sasakawa Foundation
Not Set19540250KAKENHI
Not Set21111004KAKENHI
Keywords: cosmology:observations; galaxies:evolution; galaxies:active; infrared:galaxies
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM)
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Research Group: Space
Item ID: 49522
Depositing User: G. J. White
Date Deposited: 06 Jun 2017 10:47
Last Modified: 02 May 2019 16:15
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