Microjansky Radio Sources in DC 0107−46 (Abell 2877)
نویسندگان
چکیده
منابع مشابه
Optically Faint Microjansky Radio Sources.
We report on the identifications of radio sources from our survey of the Hubble Deep Field (HDF) and the Small Selected Area 13 fields, both of which comprise the deepest radio surveys to date at 1.4 and 8.5 GHz, respectively. About 80% of the microjansky radio sources are associated with moderate-redshift starburst galaxies or active galactic nuclei within the I-magnitude range of 17-24 with a...
متن کاملar X iv : a st ro - p h / 00 01 41 3 v 1 2 4 Ja n 20 00 Microjansky radio sources in DC 0107 − 46 ( Abell 2877 )
The cluster DC0107−46 (Abell 2877) lies within the Phoenix Deep Survey, made at 1.4 GHz with the Australia Telescope Compact Array. Of 89 known optical cluster members, 70 lie within the radio survey area. Of these 70 galaxies, 15 (21%) are detected, with luminosities as faint as 1.0×10 20 W Hz −1. Spectroscopic observations are available for 14/15 of the radio-detected cluster galaxies. Six ga...
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We use highly spectroscopically complete observations of the radio sources from the VLA 1.4 GHz survey of the Hubble Deep Field-North region to study the faint radio galaxy population and its evolution. The fraction of radio sources that can be optically spectroscopically identified is fairly independent of radio flux, with about 60−80% identified at all fluxes. We spectrally classify the sourc...
متن کاملThe Properties of Microjansky Radio Sources in the Hdf-n, Ssa13, and Ssa22 Fields
We present multiwavelength observations for a large sample of microjansky radio sources detected in ultradeep 1.4GHz maps centered on the Hubble Deep Field-North (HDF-N) and the Hawaii Survey Fields SSA13 and SSA22. Our spectroscopic redshifts for 169 radio sources reveal a flat median redshift distribution, and these sources are hosted by similarly luminous optical L galaxies, regardless of re...
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We investigate the nature of the faintest radio sources detected in 3 VLA surveys, to F(8.5 GHz) ∼ 8μJy. Using the Keck Low Resolution Imaging Spectrograph in BRI and the Near Infra Red Camera in K ′ (2.1μm), we image 51 radio sources, and identify probable optical counterparts for 50. With LRIS spectroscopy, we successfully acquire new redshifts for 17 sources. Combining these with 9 prior red...
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ژورنال
عنوان ژورنال: The Astrophysical Journal Supplement Series
سال: 2000
ISSN: 0067-0049,1538-4365
DOI: 10.1086/313399