J/other/ChJAA/8.385 Superluminal motion in AGN (Zhang+, 2008)
Statistics of superluminal motion in active galactic nuclei.
Zhang Y.-W., Fan J.-H.
<Chinese J. Astron. Astrophys., 8, 385-394 (2008)>
=2008ChJAA...8..385Z 2008ChJAA...8..385Z
ADC_Keywords: Active gal. nuclei ; BL Lac objects ; QSOs ; Proper motions;
Redshifts
Keywords: galaxies: jets - galaxies: general - BL Lacertae objects: active -
quasars: data analysis
Abstract:
We have collected an up-to-date sample of 123 superluminal sources
(84 quasars, 27 BL Lac objects and 12 galaxies) and calculated the
apparent velocities (βapp) for 224 components in the sources
with the Λ-CDM model. We checked the relationships between
their proper motions, redshifts, βapp and 5GHz flux densities.
Our analysis shows that the radio emission is strongly boosted by the
Doppler effect. The superluminal motion and the relativistic beaming
boosting effect are, to some extent, the same in active galactic
nuclei.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 77 224 The 224 individual feature data of 123
superluminal sources
refs.dat 283 40 References
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See also:
J/ApJ/430/467 : Extragalactic sources superluminal motions (Vermeulen+, 1994)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Name (HHMM+DDd, B1950)
10- 16 A7 --- Class Classification (1)
18- 23 F6.4 --- z Redshift
25- 30 A6 --- r_z Reference for z, in refs.dat file
32- 37 F6.3 mas/yr pm Proper motion
39- 43 F5.3 mas/yr e_pm ? rms uncertainty on pm
45- 50 A6 --- r_pm Reference for pm, in refs.dat file
52- 58 F7.3 --- betapp Apparent velocity (βapp=vapp/c)
60- 64 F5.2 --- e_betapp ? rms uncertainty on betapp
66- 71 F6.3 Jy S5GHz ? Observed flux density at 5GHz
73- 77 A5 --- r_S5GHz Reference for S5GHz, in refs.dat fiale
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Note (1): All sources have been classified as one of three types:
Q the quasar, G the galaxy, and B the BL Lac object C1, C2, ... C8
stand for the individual components which some authors denote by A-E,
K, J and S. In the present paper, we directly used the component
identification from the literature. The quasar suffixess are:
c for core-selected, l for lobe-selected and p for compact symmetric.
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Ref Reference code
8- 26 A19 --- BibCode BibCode
28- 44 A17 --- Aut Author's name
47-283 A237 --- Com Comments
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-May-2010