VLA and CCD Observations of the Radio Source Group GB2 1401+350

Details VLA and CCD Observations of the Radio Source Group GB2 1401+350 VLA and CCD Observations of the Radio Source Group GB2 1401+350

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102...53m&link_type=abstract

Publications of the Astronomical Society of the Pacific v.102, p.53

Astronomy and Astrophysics

Astronomy

1

Radio Sources: Galaxies

Scientific paper

A group of four luminous radio sources lying within a circle 7 arc min in diameter has been investigated at radio and optical wavelengths. High-resolution VLA maps at 1.4 GHz and CCD frames taken through H and V photometric filters were used to identify three of the four sources with faint galaxies. The strongest radio source has FR I (edge-darkened) morphology and coincides with the brightest galaxy in a cluster at photometric redshift z ≍ 0.50. The two FR II (edge-brightened) sources are identified with galaxies 1.5 mag fainter. Our hypothesis that all four radio sources are in one large primordial cluster ≍ 3 Mpc in diameter is consistent with these data. If it is false, one of these fainter edge-brightened sources may be in a more distant (z ≍ 0.7) cluster. Spectroscopic observations are needed for further verification of this hypothesis.

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