J/AZh/72/613 Optical identification of radio sources (Kopylov+, 1995)
Optical identification of a subsample of steep spectrum radio sources
from the RC Catalog using the 6-m SAO telescope: optical observations
Kopylov A.I., Goss V.M., Parijskij Yu.N., Soboleva N.S., Zhelenkova O.P.,
Tempirova A.V., Vitkovskii V.V., Naugolnaya M.N., Verkhodanov O. V.
<Astron. Zh. 72, 613 (1995)>
=1995AZh....72..613K 1995AZh....72..613K
ADC_Keywords: Radio sources
Keywords: Radio Sources
Description:
Results are presented of deep identifications of 40 steep spectrum
radio sources detected on RATAN-600 in an area ∼100deg in the 'Kholod'
experiment and then studied using the VLA. Candidates for optical
objects responsible for the radio emission were found for 32 sources.
With the exception of a few quasars and objects with ill-defined
morphology, a large fraction of the radio sources are associated
either with gE galaxies or with galaxies of an unknown nature.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 120 51 Results of the optical identification of the
radio sources
notes.dat 78 90 Individual notes
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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- 2 I2 --- No Running number
5- 13 A9 --- Name Name of radio source
16 I1 --- Id ? Number of the optical candidate
19- 20 I2 h RAh ? Optical candidate right ascension (1950)
22- 23 I2 min RAm ? Optical candidate right ascension (1950)
25- 30 F6.3 s RAs ? Optical candidate right ascension (1950)
33 A1 --- DE- ? Declination sign
34- 35 I2 deg DEd ? Optical candidate declination (1950)
37- 38 I2 arcmin DEm ? Optical candidate declination (1950)
40- 44 F5.2 arcsec DEs ? Optical candidate declination (1950)
46 A1 --- l_Rmag ? Limit symbol on stellar magnitude
47- 50 F4.1 mag Rmag Stellar magnitude in the R filter
53- 54 I2 pix Ap ? Aperture diameter for integrated stellar
magnitude (1 pixel = 205 mas)
57- 63 A7 "MM/YY" Obs ? Epoch of observations
66- 69 I4 s Exp ? Total exposure time
72- 74 F3.1 arcsec FWHM ? Quality of image (FWHM) for the best image
77- 82 F6.2 arcsec dRA ? Difference in coordinates of the optical
candidates and the center of gravity of
the radio in RA
85- 90 F6.2 arcsec dDec ? Difference in coordinates of the optical
candidates and the center of gravity of
the radio in Dec
93- 96 F4.2 mag Abs ? Correction to observed stellar magnitude
for absorption in the Galaxy
99 A1 --- l_Rcmag ? Limit symbol on stellar magnitude
corrected for absorption
100-104 F5.2 mag Rcmag Stellar magnitude corrected for absorption
108-112 F5.2 mag mlim Revised stellar magnitude limit
(determined from the condition of equality
of the optical and radio luminosities )
115 A1 --- l_dmag ? Limit symbol on dmag
116-120 F5.2 mag dmag Difference between the limit and observed
stellar magnitude.
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- No Running number
4- 12 A9 --- Name Name of radio source
14- 89 A76 --- Note Text of the note
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(End) Veta Avedisova [INASAN] 30-Jul-1997