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J/ApJ/624/135 Phoenix Deep Survey spectroscopic catalog (Afonso+, 2005)
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Beginning of ReadMe :J/ApJ/624/135 Phoenix Deep Survey spectroscopic catalog (Afonso+, 2005)
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The Phoenix Deep Survey: spectroscopic catalog.
Afonso J., Georgakakis A., Almeida C., Hopkins A.M., Cram L.E.,
Mobasher B., Sullivan M.
<Astrophys. J., 624, 135-154 (2005)>
=2005ApJ...624..135A
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ADC_Keywords: Surveys ; Galaxies, radio ; Spectroscopy ; Redshifts
Keywords: galaxies: evolution - galaxies: starburst -
radio continuum: galaxies - surveys
Abstract:
The Phoenix Deep Survey is a multiwavelength survey based on deep
1.4GHz radio imaging, reaching well into the sub-100uJy level. One of
the aims of this survey is to characterize the submillijansky radio
population, exploring its nature and evolution. In this paper we
present the catalog and results of the spectroscopic observations
aimed at characterizing the optically "bright" (R< 21.5mag)
counterparts of faint radio sources. Of 371 sources with redshift
determination, 21% have absorption lines only, 11% show active
galactic nucleus signatures, 32% are star-forming galaxies, 34% show
narrow emission lines that do not allow detailed spectral
classification (owing to poor signal-to-noise ratio and/or lack of
diagnostic emission lines), and the remaining 2% are identified with
stars.
Description:
The PDS includes a deep 1.4GHz survey made using the Australia
Telescope Compact Array covering an area of 4.56deg^2^ (the Phoenix
Deep Field, PDF), selected to lie in a region of low optical
obscuration and devoid of bright radio sources.
Optical CCD imaging was carried out at the Anglo-Australian Telescope
(AAT) in the R and V bands, as detailed in Georgakakis et al. (1999,
Cat. J/MNRAS/306/708).
Optical counterparts of radio sources in the PDS were observed
spectroscopically in a series of observing campaigns. Initial data
were obtained using multifiber spectroscopy at the Two Degree Field
(2dF) spectrograph at the AAT (1996 December and 1997 September) and
slit spectroscopy at the ESO 3.6m telescope (1996 October).