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J/A+A/353/1044
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J/A+A/353/1044
..table4
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Distance ρ
Position angle θ
Distance (x,y)
Galactic
J2000
B1950
Ecl. J2000
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J2000
B1975
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B1855
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Ecl.J2000
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J/A+A/353/1044
896
ROSAT obs. of T Tauri stars in MBM 12 (Hearty+, 2000)
ReadMe+ftp
2000A&A...353.1044H
Similar Catalogs
Post annotation
1.
J/A+A/353/1044/table4
ROSAT detected X-ray sources in the direction
(80 rows)
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Column
Constraint
Explain
(
UCD
)
recno
Record number assigned by the VizieR team. Should Not be used for identification.
Seq
Sequential number of the X-ray source
(Note 1)
m_Seq
(char)
Multiplicity index when several possible optical counterparts
Survey
(char)
"RASS" (ROSAT All Sky Survey) or "RPOS" (Pointed Observation sources)
Name
(char)
Name
(Note 2)
RAJ2000
"h:m:s"
X-ray right ascension (J2000)
DEJ2000
"d:m:s"
X-ray declination (J2000)
ML
Maximum Likelihood for Existence
e_ML
rms uncertainty on ML
CountRate
ct/s
X-ray count rate in the 0.1-2.0 keV band
HR1
X-ray hardness ratio 1
ALL
cols
(i)
indexed column
e_HR1
rms uncertainty on HR1
HR2
(n)
X-ray hardness ratio 2
e_HR2
(n)
rms uncertainty on HR2
Vmag
mag
(n)
Optical counterpart visual magnitude
n_Vmag
(char)
[:] Note on Vmag
(Note 3)
log(fx/fv)
(n)
X-ray to optical flux ratio
SpT
(char)
Optical counterpart spectral type
W(Ha)
0.1nm
(n)
Hα equivalent width
n_W(Ha)
(char)
[f] f: filled
W(Li)
0.1nm
(n)
Lithium equivalent width
Comments
(char)
Comments on individual sources
ALL
cols
(n)
indicates a possible blank or NULL column
(i)
indexed column
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