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J/A+AS/108/79
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J/A+AS/108/79
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J2000
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J2000
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J/A+AS/108/79
764
Ultra-steep spectrum radiosources (Roettgering+, 1994)
ReadMe+ftp
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1.
J/A+AS/108/79/source
Source list
(1168 rows)
Simple Constraint
List Of Constraints
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Constraints
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Column
Constraint
Explain
(
UCD
)
recno
Record number within the original table (starting from 1)
(
meta.record
)
(
RECORD
)
Samples
(char)
Name of the samples to which the source belongs
(Note 1)
(
meta.id;meta.dataset
)
(
ID_DATASET
)
Name
(char)
Source name in IAU B1950.0 format
(
meta.id;meta.main
)
(
ID_MAIN
)
m_Name
(char)
[1-5ABc ] Component designator
(Note 2)
(
meta.code.multip
)
(
CODE_MULT_INDEX
)
RAJ2000
"h:m:s"
[]? Right ascension J2000
(
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
DEJ2000
"d:m:s"
(n)
Declination sign
(
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
Speak
mJy
Peak brightness
(
phot.flux.density;em.radio.20-100MHz
)
(
PHOT_FLUX_RADIO_43M
)
Sint
mJy
[]? Integrated flux density
(
phot.flux.density;em.radio.750-1500MHz
)
(
PHOT_FLUX_RADIO_1.4G
)
R
[]? Ratio of the integrated VLA flux density to the flux density obtained from the NRAO Green Bank 1400 MHz
(
phot.flux;arith.ratio
)
(
PHOT_FLUX_RATIO
)
alpha(l)
[]? Low frequency spectral index
(
spect.index
)
(
SPECT_SP-INDEX
)
e_alpha(l)
[]? Rms uncertainty on alpha(l)
(
stat.error
)
(
ERROR
)
alpha(h)
[]? High frequency spectral index
(
spect.index
)
(
SPECT_SP-INDEX
)
e_alpha(h)
[]? Rms uncertainty on alpha(h)
(
stat.error
)
(
ERROR
)
Cat
(char)
[a-r ] Radio catalogues that have been used in the spectral index calculations
(Note 3)
(
meta.note
)
(
REMARKS
)
n_Cat
(char)
Notes on catalogues
(Note 4)
(
meta.note
)
(
NOTE
)
Mul
(char)
[DPMTF ] D = double, P = point source, T = triple DF = diffuse, M = complex
(
meta.code.multip
)
(
CODE_MULT_INDEX
)
l_Size
(char)
Limit flag on Size
(
meta.code.error
)
(
CODE_LIMIT
)
Size
arcsec
[]? Angular size measured from VLA maps
(
phys.angSize;src
)
(
EXTENSION_DIAM
)
PA
deg
[]? Position angle measured from VLA maps
(
pos.posAng
)
(
POS_POS-ANG
)
ALL
cols
(n)
indicates a possible blank or NULL column
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