Optical identifications of radio sources in the 5C 6 survey
نویسندگان
چکیده
منابع مشابه
Optical identifications of faint radio sources 1 1997
Deep imaging and spectroscopy have been carried out for optical counterparts of a sample of 68 faint radio sources (S > 0.2 mJy) in the “Marano Field”. About 60% of the sources have been optically identified on deep CCD exposures (limit R ' 24.0) or ESO 3.6–m plates (limit bJ ' 22.5). Thirty–four spectra (50% of the total radio sample) were obtained with the ESO 3.6–m telescope and 30 redshifts...
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A new sample of radio sources, with the designated name CENSORS (A Combined EISNVSS Survey Of Radio Sources), has been defined by combining the NRAO VLA Sky Survey (NVSS) at 1.4 GHz with the ESO Imaging Survey (EIS) Patch D, a 3 by 2 degree region of sky centred at 09 51 36.0, −21 00 00 (J2000). New radio observations of 199 NVSS radio sources with NVSS flux densities S1.4 GHz > 7.8 mJy are pre...
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As a step toward investigating the parsec-scale properties of faint extragalactic radio sources, the Very Long Baseline Array (VLBA) was used at 5.0 GHz to obtain phase-referenced images of 76 sources in the NOAOBoötes field. These 76 sources were selected from the Faint Images of the Radio Sky at Twenty cm (FIRST) catalog to have peak flux densities above 10 mJy at 500 resolution and deconvolv...
متن کاملOptical identifications of ∼ 4000 radio sources at the 1 mJy level
We present an analysis of the properties of optical counterparts of radio sources down to 1 mJy. Optical identifications have been obtained by matching together objects from the APM and FIRST surveys over the region 148.13◦ ∼ < RA(2000) ∼ < 218.13◦, −2.77◦ ∼ Dec ∼ 2.25 ◦. Selecting radio sources down to 1 mJy, and adopting a uniform optical limit of bJ = 21.5 we find 3176 have a counterpart in ...
متن کاملThe ATESP Radio Survey IV . Optical Identifications and Spectroscopy in the EIS - A Region ⋆
This paper is the fourth of a series reporting the results of the ATESP radio survey, which was made at 1.4 GHz with the Australia Telescope Compact Array. The survey consists of 16 radio mosaics with ∼ 8 ′′ × 14 ′′ resolution and uniform sensitivity (1σ noise level ∼ 79 µJy) over the region covered by the ESO Slice Project redshift survey (∼ 26 sq. degrees at δ ∼ −40 •). The ATESP survey has p...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1979
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/187.2.223