[ CATS home ] [ Back to CATS list ]
[ ftp ]
1994AuJPh..47..145Slee,Roy & Savage
A VLA Survey of Rich Clusters of Galaxies II. The stronger sources
Abstract
We present detailed radio and optical parameters for the stronger radio
sources in 58 Abell cluster fields observed with the Very Large Array (VLA)
using scaled arrays at 1.5 and 4.9 GHz. These sources comprize a complete
sample with 1.5 GHz flux density greater than or equal to 20 mJy and cover a
combined sky area of 3.5 x 10(exp -5) sr. The cluster fields were
distributed over 24 h of RA and between declinations +35 deg and -30 deg.
Contour maps at two frequencies are presented and source parameters such as
position, angular size, spectral index, linear polarization and core flux
density are tabulated. We also derive the emitted power and linear size for
those sources close to the cluster centers and therefore highly likely to be
cluster members. We attempt to identify all these radio sources with optical
images on the Palomar and SERC survey plates and give their accurate optical
coordinates, morphologies and apparent magnitudes.
1994AuJPh..47..145Slee, Roy & Savage; A VLA Survey of Rich Clusters
of Galaxies II. The stronger sources; (ctsy. A.Roy 4/94)
(ctsy. A.Roy 4/94) BEWARE: 1.5/4.9GHz polarization fraction has ranges of values!
(reformatted final version, 16-Oct-94)
==========================================================================
Table 1. Properties of observed clusters
Abell RA(1950)DEC rad_off D R m_10 BM Rc' Mpc z ref lgL_x
----+----1----+----2----+----3----+----4----+----5----+----6----+----7-
A 13 0011.1-1947 2.5 -81.1 2 5 16.6 5 17 1.59 0.0945 6
==========================================================================
Table 2. Radio source measurements * = Bandwidth smearing >= 7 arcsec
Cluster Source R.A. (1950) DEC Map Ang Dist S_1.5 S_4.9 Spectr. Ellipse Axes Lin. Polaris. lg10 LAS PTI References to
Field Number Number R/Rc Index Maj Min PA 1.5GHz 4.9GHz L_1.5 Size Core Other measurements
mJy mJy " " d % % W/Hz kpc mJy
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2----+----3--
A0013.1 000938.97-194042.4 1.30 84.0 17 3 89
A0013.6abc 001054.51-194647.7 1 0.19 3.85 -2.09 53 20 99 22.75 140 1,4,29
==========================================================================
Table 3. Measurements of double sources
# 4.9 GHz measurements; digital data not available at 1.5 GHz
* Bandwidth smearing >= 7 arc
Cluster Source Map Comp.Flux Flux Sp. Index Component Struct. Ratio of Comp. Linear
Field Number Number Sa Sb Ratio a b Maj.Axes Separ. Sep.
mJy mJy Sa/Sb a b " " d " " d a/b " d kpc
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----
A0076.5ab 2 * 10.3 9.8 1.05 11 9 93 29.7 40
A0076.13ab 3,4 79.8 79.0 1.01 -0.97 -0.91 14 7 92 11 7 104 1.27 31.1 105
Column headings :
1,2 The cluster field and source number as listed by SPS89.
3 Contour map number within Figure 1.
4,5 The 1.5 GHz flux densities of the components.
6. Ratio of the flux densities of the components.
7,8 Spectral indices of the components between 1.5 & 4.9 GHz.
9,10 Deconvolved ellipse axes and position angles (from north through east) of the components.
11 Ratio of the major axes of the components.
12 Angular separation of the components and its position angle ( from north through east).
13 Linear separation of the components of doubles with redshifts (qo=0.5, Ho = 75km/s/Mpc)."
==========================================================================
Table 4. Measurements of triple sources
* Bandwidth smearing >= 7 arcsec
Cluster Source Map Component Flux Density Gaussian-fit Ellipses Component Separations
Field Number Number Sa Sb Sc a b c a - b b - c a - c
mJy mJy mJy " " deg " " deg " " deg " deg " deg " deg
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12)
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+--
A 13 6abc 1 1.83 1.36 0.74 32 11 120 9 3 8 37.9 104 20.3 130 21.6 79
==========================================================================
Table 5. Optical identifications
Cluster Source Radio Centroid Optical Position EF Ang. PA m_app m_app Ty z_hel Reference(s)
Field Source RA (B1950) Dec. RA (B1950)Dec. ID Dist PSSE SRC Morph to the redshift z
Number h m s d ' " h m s d ' " " d R B_J z
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13)
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----
A0013.1 000938.97-194042.4 EF