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AKARI DEEP FIELD SOUTH: SPECTROSCOPIC OBSERVATIONS OF INFRARED SOURCES KCI 등재

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/384343
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천문학논총 (Publications of the Korean Astronomical Society)
한국천문학회 (Korean Astronomical Society)
초록

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 Ly 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) tting for these sources.

목차
ABSTRACT
1. INTRODUCTION
2. METHODS: AAOMEGA SPECTROSCOPY
    2.1. Choice of targets
    2.2. Observations and data reduction
3. RESULTS
    3.1. Redshift identifications
    3.2. Flux calibration of spectra
4. DISCUSSION
    4.1. Luminosity function
    4.2. Proportions AGNs and LIRGs
    4.3. Star formation rates and Balmer decrement
    4.4. Multi-wavelength data for spec-z sources
REFERENCES
저자
  • Chris Sedgwick(The Open University)
  • Stephen Serjeant(The Open University)
  • Chris Pearson(RAL Space, Rutherford Appleton Laboratory/ments7, and Simon Amber1)
  • Shuji Matsuura(Institute of Space and Astronautical Science, JAXA)
  • Mai Shirahata(National Astronomical Observatory of Japan)
  • Hideo Matsuhara(Institute of Space and Astronautical Science, JAXA)
  • Lucia Marchetti(The Open University)
  • Glenn J. White(The Open University/RAL Space, Rutherford Appleton Laboratory)
  • Mattia Vaccari(Astrophysics Group, Physics Department, University of the Western Cape)
  • Ivano Baronchelli(Dipartimento di Fisica e Astronomia, Universita degli Studi di Padova)
  • Giulia Rodighiero(Dipartimento di Fisica e Astronomia, Universita degli Studi di Padova)
  • Bunyo Hadsukade(National Astronomical Observatory of Japan)
  • David L. Clements(Astrophysics Group, Imperial College,Blackett Laboratory)
  • Simon Amber(The Open University)