J/A+AS/134/401 4C equatorial sample VLA observations. II. (Jackson+, 1999)
VLA observations of a 4C equatorial sample. II.
Jackson N., Roland J., Bremer M., Rhee G., Webb J.
<Astron. Astrophys. Suppl. Ser. 134, 401 (1999)>
=1999A&AS..134..401J 1999A&AS..134..401J
ADC_Keywords: Radio continuum ; Surveys
Keywords: surveys - galaxies: active - radio continuum: galaxies -
radio continuum: general
Description:
VLA observations at 4.9GHz are given for 144 steep-spectrum 4C sources
whose declinations are between -4° and +4° and whose angular
sizes are smaller than 30arcsec. The paper contains 150 maps (VLA and
6 MERLIN observations at 1420 or 1658MHz) which are not included here.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 66 144 *Objects observed, together with the geometry
of the restoring beam.
table2.dat 58 298 Positions and fluxes observed with VLA
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Note on table1.dat: source 1039+019 was corrected to read 1039+029
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See also:
1996ApJS..107..175R 1996ApJS..107..175R : VLA imaging of a sample of steep-spectrum
radio galaxies (Rhee et al.)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 -- IAUname Name of source (based on 1950 position)
10 I1 --- Epoch Epoch coded as 1=1994-Jul-08, 2=1994-Jul-30,
3=1995-Oct-09, 4=1995-Dec-10
13- 16 F4.2 arcsec MajAxis Major axis of the restoring beam
18- 21 F4.2 arcsec MinAxis Minor axis of the restoring beam
23- 28 F6.2 deg PA [-90,+90] Position angle of restoring beam
30 A1 --- Problem [*] indicates a problem, see "History" section
31- 66 A36 --- Comment Comments
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- 4C 4C name (Cat. VIII/4)
11- 18 A8 --- IAUname Name of source (based on 1950 position)
20- 21 I2 h RAh Right Ascension 1950 (hours)
22- 23 I2 min RAm Right Ascension 1950 (minutes)
24- 28 F5.2 s RAs Right Ascension 1950 (seconds)
29 A1 --- DE- Declination 1950 (sign)
30- 31 I2 deg DEd Declination 1950 (degrees)
32- 33 I2 arcmin DEm Declination 1950 (minutes)
34- 37 F4.1 arcsec DEs Declination 1950 (seconds)
38 A1 --- Core [*] indicates the probable core
40- 45 F6.1 mJy Fpeak 4860MHz Peak flux density
47- 52 F6.1 mJy Ftotal 4860MHz Total (integrated) flux density
54- 58 F5.1 arcsec Size ? Angular size of source
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Table 3: Log of Merlin observations
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4C name IAUname Obs. Date Obs.Time Freq.
(hr) (MHz)
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4C+00.15 0421+004 1997-May-14 4.1 1658
4C+03.14 0852+029 1997-Mar-30 7.2 1420
4C+00.31 0945+003 1997-Apr-17 8.4 1658
4C-02.63 1509-023 1997-Mar-26 8.0 1658
4C-03.65 1738-033 1997-May-14 8.3 1658
4C+00.80 2200+006 1997-Apr-17 8.0 1420
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Nomenclature Note:
Sources are designated [JRB99] in Simbad.
History:
* May 1999: tables OCR'ed by H.J. Andernach (catalogue R608 in his list).
The following problems have been encountered (sources flagged '*'
in column 'Problem' of table1):
=> 0502-023 is only listed in table1, not in table2; table1 remarks a
"marginal detection" for it, but the map shown on the bottom right
of p.417 clearly shows a source.
=> 0915+025 is duplicate (in both table1 and table2).
=> 1039+019 was corrected to read 1039+029 to agree with table2
In addition, Table 3 quotes the additional sources
4C+00.31=0945+003, 4C-03.65=1738-033, and 4C-02.63 1509-023,
which are not listed in table 2.
This makes a total of 147 sources presented in this paper
(while the abstract states 144).
Acknowledgements:
It is a pleasure to thank H.J. Andernach for having prepared and
supplied the tables to CDS.
(End) Francois Ochsenbein [CDS] 12-May-1999