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J/ApJ/999/244
-1
X-ray catalog and classification of 4FGL-DR4 UGSs (Neumann+ 2026)
ReadMe+ftp
2026ApJ...999..244N
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Post annotation
1.
J/ApJ/999/244/table7
Potential radio counterparts to X-ray singlets
(218 rows)
meta
J/ApJ/999/244/table7
Simple Constraint
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Constraints
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Column
Constraint
Explain
(
UCD
)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
(
meta.record
)
(
RECORD
)
4FGL
(char)
AFGL identifier, JHHMM.m+DDMM
(
meta.id;meta.main
)
(
ID_MAIN
)
SwXF4-DR4
(char)
SwXF4-DR4 name (JHHMMSS.s+DDMMSS)
(
meta.id
)
(
ID_ALTERNATIVE
)
l_Vmag
(char)
Limit flag on Vmag
(
meta.code.error
)
(
CODE_LIMIT
)
Vmag
mag
(n)
V-band magnitude
(
phot.mag;em.opt.V
)
(
PHOT_MAG_V
)
RName
(char)
Radio Source name
(
meta.id.assoc
)
(
ID_ASSOCIATED
)
Offset
arcsec
(n)
Offset betweeb gamma and radio sources
(
pos.distance
)
(
PHYS_DISTANCE_TRUE
)
Frad
mJy
(n)
Radio flux density
(
phot.flux.density;em.radio
)
(
PHOT_FLUX_RADIO_MISC
)
l_R
(char)
Limit flag on R
(
meta.code.error
)
(
CODE_LIMIT
)
R
(n)
Radio-loudness parameter
(Note 1)
(
phot.flux;arith.ratio
)
(
PHOT_FLUX_RATIO
)
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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UCD1
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