J/ApJ/614/607 8.4GHz obs. of scintillating sources (Ojha+, 2004)
Milliarcsecond structure of microarcsecond sources: comparison of scintillating
and nonscintillating extragalactic radio sources.
Ojha R., Fey A.L., Jauncey D.L., Lovell J.E.J., Johnston K.J.
<Astrophys. J., 614, 607-614 (2004)>
=2004ApJ...614..607O 2004ApJ...614..607O
ADC_Keywords: Radio sources
Keywords: galaxies: active - galaxies: ISM - galaxies: jets - galaxies: nuclei -
ISM: structure - quasars: general
Abstract:
We compare the milliarcsecond-scale morphology of scintillating and
nonscintillating sources. The scintillating sources are drawn from
those flat-spectrum extragalactic radio sources discovered, by the
Micro-Arcsecond Scintillation-Induced Variability Survey (MASIV,
Lovell et al, 2003AJ....126.1699L 2003AJ....126.1699L), to have flux density variability
at 5GHz on timescales from hours to days. Intrinsic source structure
information is obtained from previously published and/or publicly
available 8.4GHz Very Long Baseline Array images. A sample of low flux
density (Sν=5GHz<0.3Jy) scintillating sources was compared with a
sample of high flux density (Sν=5GHz∼1Jy) scintillators, as well
as a sample of high flux density nonscintillators.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 27 18 High flux density scintillators
table2.dat 27 174 High flux density nonscintillators
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See also:
J/AJ/128/1570 : 8.4GHz VLBA observations of scintillating sources (Ojha+ 2004)
Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Source Source name, based on B1950 position
11- 14 F4.2 Jy S8.4GHz Flux density at 8.4GHz
17- 27 A11 "YYYY-MMM-DD" Epoch Epoch of observation
(most recent available)
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History:
From electronic version of the journal
(End) Marianne Brouty [CDS] 18-May-2005