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J/other/BSAO/40.5 RATAN-600 RC radio sources (Parijskij+ 1996)
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Investigation of RATAN-600 RC radio sources
Parijskij Yu.N., Goss W.M., Kopylov A.I., Soboleva N.S., Temirova A.V.,
Verkhodanov O.V., Zhelenkova O.P., Naugolnaya M.N.
<Bull. Special Astrophys. Obs., 40, 5 (1996)>
=1996BSAO...40....5P (SIMBAD/NED BibCode)
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ADC_Keywords: Radio sources ; Galaxies, radio ; Morphology
Keywords: radio galaxies: general - observations - cosmology
Abstract:
We use the RATAN-600 radio telescope for picking up the most distant
objects in the Universe. As a first step, about 100 steep spectrum
FRII radio galaxies (SS FRII RG) from the RATAN-600 RC catalog
(Parijskij et al., 1991, Cat. <J/A+AS/87/1>; 1992A&AS...96..583P) were
mapped by the VLA and identified with optical objects down to 24-25 R
mag. All the VLA images and all the deep CCD images of the RC SS
fields, collected up to now, are given. An updated list of calibrators
with the known redshifts of the same SS FRII class RGs was compiled to
estimate photometric redshifts, redshifts from angular size - redshift
relations and by the radio "standard candle" method. The mean redshift
of the RC SS FRII RG list happened to be greater than 2. BVRI
photometry was made, and by standard model fittings we estimated
"color" redshifts and the ages of stellar systems of the parent gE
galaxies in 14 cases. Several objects were found in which active star
formation began in the first billion years after the Big Bang. We
believe that more than 10000 of such old active galaxies are available
on the sky and all of them are in the range of present day optical and
radio facilities.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 63 19 Redshifts and ages of the
RC radio galaxy subsample
table2.dat 147 389 The list of RC sources having the VLA images
notes.dat 80 171 Individual notes to table2.dat
table3.dat 74 225 Results of optical identification of the
RC catalog sources
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See also:
VIII/33 : Spectral characteristics of RATAN (RC) Catalog (Bursov+ 1989)
J/A+AS/87/1 : RATAN-600 7.6cm catalog of radio sources (Parijskij+ 1991)
J/AZh/62/229 : Giant H II region Ratan-600 obs. (Berlin+ 1985)
J/other/BSAO/40.128 : RATAN-600 radio sources spectra (Bursov 1996)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- RC Radio galaxy name
11- 14 F4.2 Gyr dt Appropriate age of star population for the best
model fittings of the observed BVRI fluxes
16- 18 F3.1 --- zcc Estimated redshift of the RG using Chambers-Charlott
(1990ApJ...348L...1C) models for SED of gE
20- 22 F3.1 --- zph Photometrical redshift
24- 26 F3.1 --- zLAS Redshift estimated using the object radio size
28- 30 F3.1 --- zsp Redshift estimated from the
"spectral index-redshift" relation
32- 34 F3.1 --- zmn Mean redshift of zph, zLAS, zcc and zsp
36- 38 F3.1 --- zsf Redshift of the beginning of the last burst of
star formation in the RG
40- 43 F4.1 --- zg0 Redshift of the galaxy gas component formation
45- 47 F3.1 Gyr Tcc zcc corresponding cosmic time of the radio source
(for the flat Universe, H0=75km/s/Mpc)
49- 51 F3.1 Gyr Tmn zmn corresponding cosmic time of the radio source
53- 55 F3.1 Gyr Tsf zsf corresponding moment
57- 59 F3.1 Gyr Tbh0 Time of beginning of the giant black hole
formation in the galactic centre
61- 63 F3.1 Gyr Tg0 zg0 corresponding cosmic time
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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 --- RC RATAN-600 RC name
10 A1 --- m_RC [abc] Multiplicty index on RC
11 A1 --- f_RC [*] Modification, see "History" section below
12- 13 I2 h RAh Right ascension (1950)
15- 16 I2 min RAm Right ascension (1950)
18- 23 F6.3 s RAs Right ascension (1950)
25 A1 --- DE- Declination sign
26- 27 I2 deg DEd Declination (1950)
29- 30 I2 arcmin DEm Declination (1950)
32- 36 F5.2 arcsec DEs Declination (1950)
38- 42 F5.2 arcsec Beam ? VLA beam size
43 A1 --- n_Beam [x] x when two components
44- 47 F4.2 arcsec Beam2 ? Second VLA beam size when two components
49- 55 F7.2 MHz Freq ? VLA central frequency
57 A1 --- l_LAS [~>] Limit flag on LAS
58- 63 F6.2 arcsec LAS ? Largest angular size of the source measured
between peaks of components
65 A1 --- l_Size Limit flag on Size
66- 70 F5.2 arcsec Size ? Angular size of the components of the source
71 A1 --- n_Size [x)] x when two components; ): uncertainty flag
72 A1 --- l_Size2 Limit flag on size2
73- 77 F5.2 arcsec Size2 ? Second value when two components
78 A1 --- nSize [p] p: point source
80- 85 F6.2 mJy SFreqc ? Flux density of components at the VLA
central frequency
87 A1 --- l_SFreq Limit flag on SFreq
88- 93 F6.1 mJy SFreq ? Total flux density of the object at the
VLA central frequency
95-100 F6.1 mJy Sint ? Expected one of the integrated spectrum
of the source
102 A1 --- l_S3.9GHz Limit flag on S3.9GHz
103-108 F6.1 mJy S3.9GHz ? Extrapolated flux density of the object
at 3.9GHz
110-115 F6.3 --- SI ? Spectral index
116-118 A3 --- n_SI [- (C)D fi] Note on SI (1)
119-122 F4.2 --- SI2 ? When interval
124-126 I3 deg GLON ? Galactic longitude
128-130 I3 deg GLAT ? Galactic latitude
132-135 F4.1 mag mlim ? Limiting optical magnitude
137 A1 --- Note [*] *: individual note exists in notes.dat file
139-149 A11 --- Morph Morphology (2)
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Note (1): -: interval
(C): for 0103+0524 and 1521+0434
D: for 2113+0445
f: flat
i: inv,fl
Note (2): P: point
Df: diffuse
CJ: core with jet
C: core
WC: weak core
BC: bright core
D: double
T: triple
M: multiple
Ext: extended
FRII: Fanaroff-Riley II type structure (1974MNRAS.167p..31F)
*: Note in notes.dat file
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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- 9 A9 --- RC RATAN-600 RC name
10 A1 --- m_RC [b] Multiplicity index on RC
12- 80 A69 --- Note Text of the note
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- RC RATAN-600 RC name
10 A1 --- m_RC Multiplicity index on RC
11 A1 --- f_RC [*] Modification, see "History" section below
12- 13 I2 h RAh ? Optical identification right ascension (1950.0)
15- 16 I2 min RAm ? Optical identification right ascension (1950.0)
18- 22 F5.2 s RAs ? Optical identification right ascension (1950.0)
24 A1 --- DE- Declination sign
25- 26 I2 deg DEd ? Optical identification declination (1950.0)
28- 29 I2 arcmin DEm ? Optical identification declination (1950.0)
31- 34 F4.1 arcsec DEs ? Optical identification declination (1950.0)
36 A1 --- l_Rmag Limit flag on Rmag
37- 40 F4.1 mag Rmag Observed R magnitude
41 A1 --- n_Rmag [*] *: magnitude estimates made using the
E-plate of POSS
43 A1 --- l_Rabs Limit flag on Rabs
44- 47 F4.2 mag Rabs ? Correction for absorption by the Galaxy dust in
R-band estimated from Burstein and Heiles
(1982, Cat. <J/AJ/87/1165>)
49 A1 --- l_Rmag0 Limit flag on Rmag0
50- 54 F5.2 mag Rmag0 R magnitude corrected for absorption in the Galaxy
56 A1 --- l_DRmag Limit flag on DRmag
57- 60 F4.1 mag DRmag ? Difference between limiting optical magnitude
and absorption corrected R-magnitude
62 A1 --- l_oRA Limit flag on oRA
63- 67 F5.1 arcsec oRA ? Right ascension position difference of the
optical candidate and centroid (or core) of
the radio source
69 A1 --- l_oDE Limit flag on oDE
70- 74 F5.1 arcsec oDE ? Declination position difference of the optical
candidate and centroid (or core) of the radio
source
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Acknowledgments:
Heinz Andernach <heinz@polaris.astro.ugto.mx>
History:
Prepared via OCR at CDS in October 1998.
An electronic version of the preprint was also supplied by
Oleg V. Verkhodanov to H. Andernach in December 1996.
The following corrections by H. Andernach were inserted in
the 15-Apr-1999 version:
- Table 2: 1339+0445 changed to 1339+0455
1806+0527 doesn't seem to exist
- Table 3: 0506+0558 changed to 0506+0508
1235+0452 changed to 1235+0453
1339+0445 changed to 1339+0455
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(End) James Marcout, Patricia Bauer [CDS] 15-Apr-1999