J/AZh/79/963 Active radio galaxies in cluster A569 (Lipovka+, 2002)
The nature of active radio galaxies in the cluster A569
Lipovka A.A., Lipovka N.M.
<Astron. Zh. 79, 963 (2002)>
=2002AZh....79..963L 2002AZh....79..963L
=2002ARep...46..867L 2002ARep...46..867L
ADC_Keywords: Radio sources ; Galaxies, radio ; Active gal. nuclei
Abstract:
The nature of bright radio sources with known radio spectra in the
direction of the nearby cluster of galaxies A569 (z=0.0193) is
investigated. The optical identifications of the sources were
provided. 45% of these radio sources are associated with compact
galaxies. A substantial fraction of these galaxies have active nuclei.
Some of them have radio halos.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 86 51 Coordinates and radio properties of radio sources
for which we obtained optical identifications with
good accuracy in terms of coordinate agreement
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See also:
http://www.ast.cam.ac.uk/~apmcat : APM Home Page
I/267 : The APM-North Catalogue (McMahon+, 2000)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- [LL2002b] Running number
5 I1 h RAh Right ascension (1950)
7- 8 I2 min RAm Right ascension (1950)
10- 13 F4.1 s RAs Right ascension (1950)
16 A1 --- DE- Declination sign (1950)
17- 18 I2 deg DEd Declination (1950)
20- 21 I2 arcmin DEm Declination (1950)
23- 26 F4.1 arcsec DEs Declination (1950)
28- 33 F6.1 mJy F1400MHz Flux density at 1400MHz
36- 40 F5.2 arcsec theta1 Radio dimension from Cat. VIII/59
43- 46 F4.2 arcsec theta2 Angular separation from Cat. VIII/59
49 A1 --- Type [nph] Type of galaxy region from which
radio emission is radiated (1)
52- 54 I3 --- eps ? Fraction of radio emission in outer halo
57- 61 F5.1 10-10T H Calculated magnetic field, in µOe,
(1 Oe = 103/4π A/m)
64- 67 F4.2 --- Sp+Index Spectral index (2)
70- 74 F5.2 mag Rmag R magnitude
76- 79 F4.1 arcsec theta Optical dimension from APM catalog
82- 86 F5.3 --- 1-b/a Ellipticity of the galaxy from APM
catalog, http://www.ast.cam.ac.uk/~apmcat
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Note (1): Type of galaxy region as follows:
n = nucleus
p = plane
h = halo
Note (2): Spectral index calculated using data of
Verkhodanov et al., 1997, Astron. Soc. Pac. Conf. Ser. 125, 322
Condon et al., 1996, NVSS, Cat. VIII/65
White et al., 1997, Cat. VIII/59
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(End) Veta Avedisova [INASAN] 03-Apr-2003