J/A+A/370/409 New sample of large angular size radio galaxies. I. (Lara+, 2001)
A new sample of large angular size radio galaxies. I. The radio data.
Lara L., Cotton W.D., Feretti L., Giovannini G., Marcaide J.M., Marquez I.,
Venturi T.
<Astron. Astrophys. 370, 409 (2001)>
=2001A&A...370..409L 2001A&A...370..409L
ADC_Keywords: Galaxies, radio
Keywords: galaxies: active - galaxies: nuclei - galaxies: jets -
radio continuum: galaxies
Abstract:
We present a new sample of 84 large angular size radio galaxies
selected from the NRAO VLA Sky Survey. Radio sources with declination
above +60°, total flux density greater than 100mJy at 1.4GHz and
angular size larger than 4' have been selected and observed with the
VLA at 1.4 and 4.9GHz. The radio observations attempt to confirm the
large angular size sources and to isolate the core emission for
optical identification. In this paper, the first of a series of three,
we present radio maps of 79 sources from the sample and discuss the
effects of the selection criteria in the final sample. 37 radio
galaxies belong to the class of giants, of which 22 are reported in
this paper for the first time.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 25 13 VLA observations
table2.dat 98 84 Radio sample of large angular size radio
galaxies from the NVSS survey
notes.htx 104 247 Notes about some of the galaxies (from article)
img/* . 28 Figures (radio maps)
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See also:
VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
J/ApJS/129/547 : RBSC-NVSS sample. I. (Bauer+, 2000)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 A1 --- Array VLA Array configuration
3- 6 I4 MHz nu Frequency
8- 10 I3 MHz e_nu rms uncertainty on nu
12- 23 A12 --- Date Observation date
25 A1 --- Code [a-m] Code (1)
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Note (1): Letter code used in Table 3 to show the observations made on
each source.
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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 --- [LCF2001] Radio galaxy name (JHHMM+DDd)
10 A1 --- n_[LCF2001] [*c] c: Coordinates taken from
Saripalli et al. (1997A&A...328...78S 1997A&A...328...78S)
*: New giant radio galaxy
12- 13 I2 h RAh Right ascension (J2000.0)
15- 16 I2 min RAm Right ascension (J2000.0)
18- 23 F6.3 s RAs Right ascension (J2000.0)
25 A1 --- DE- Declination sign (J2000.0)
26- 27 I2 deg DEd Declination (J2000.0)
29- 30 I2 arcmin DEm Declination (J2000.0)
32- 36 F5.2 arcsec DEs Declination (J2000.0)
38- 41 I4 mJy St1.4 Total flux density at 1.4GHz
43- 46 F4.1 arcmin Size Angular size
48- 52 F5.1 mJy Sc1.4 ? Core flux density at 1.4GHz
53 A1 --- n_Sc1.4 [e] e: extended core at 1.4GHz
55- 59 F5.1 mJy Sc4.9 Core flux density at 4.9GHz
60 A1 --- n_Sc4.9 [e] e: extended core at 4.9GHz
62- 66 F5.3 --- z ? Redshift
67 A1 --- u_z [?] ?: unknown redshift
68 A1 --- n_z [ab] Note on redshift (1)
70- 73 I4 kpc Sizel ? Projected linear size
75- 79 F5.2 [W/Hz] Pt1.4 ? Total radio power at 1.4GHz
81- 85 F5.2 [W/Hz] Pc1.4 ? Core radio power at 1.4GHz
87- 91 F5.2 [W/Hz] Pc4.9 ? Core radio power at 4.9GHz
93-102 A10 --- MType Morphological type (2)
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Note (1): Redshift origin as follows:
a = Redshift taken from the NASA Extragalactic Database.
b = Redshift from Schoenmakers (1999, Ph.D. Thesis, University of Utrecht).
Note (2): I and II stand for FR I and FR II type radio galaxies, respectively.
(Classification of Fanaroff-Riley, 1974MNRAS.167p..31F 1974MNRAS.167p..31F)
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History:
* 17-May-2001: From electronic version of the journal
and prepared via OCR at CDS.
* 08-Aug-2011: added the postscript images (thanks to Heinz Andernach
and Bill Cotton)
(End) Patricia Bauer [CDS] 17-May-2001