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J/ApJS/231/11/hmsc High-mass starless clump candidates from ATLASGAL (Yuan+, 2017)
High-mass starless clump (HMSC) candidates parameters (tables 2 and 3) (463 rows)
  recno=391
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ColumnValue  Explain   (UCD)
_RAJ200017 20 52.7000 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-35 43 20.600 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195017 17 31.6668 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-35 40 23.115 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon351.4659267 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat +0.6820538 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
391recno 391  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

[CUS2014]G351.4659+0.6821  Identifier (GLLL.llll+B.bbbb) (meta.id;meta.main)
RAJ200017 20 52.70 "h:m:s" (i) Hour of Right Ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000-35 43 20.6 "d:m:s" (i) Degree of Declination (J2000) (pos.eq.dec;meta.main)
MajAxis48 arcsec [21/97] Angular major half-intensity axis (phys.angSize)
MinAxis27 arcsec [20/50] Angular minor half-intensity axis (phys.angSize.sminAxis)
PA 0.8 deg Position angle (Note 1)   (pos.posAng)
FWHM36 arcsec [20/59] Full-Width at Half-Maximum (phys.angSize)
VLSR -2.70 km/s [-122/206] Local Standard of Rest velocity (phys.veloc;pos.lsr)
Dist 1.34 kpc [0.2/19] Distance (pos.distance;pos.heliocentric)
e_Dist 0.14 kpc Uncertainty in Dist (stat.error)
r_VLSRc14  Reference for VLSR (Note 2)   (meta.ref;phys.veloc;pos.frame)
FlagN  The 70 micron dark clump flag (Note 3)   (meta.code.error)
f_[CUS2014]   s : possible starless core; column added by CDS following table 5 (meta.code)
Req 0.20 pc [0.05/4] Equivalent radii (phys.size.radius)
Tdust16.79 K [10/25] Dust temperature (phys.temperature)
NH2 4.0e+23 cm-2 H2 column density (phys.columnDensity)
nH2 2.8e+05 cm-3 H2 number density (meta.id)
SigM 1.08 g/cm2 [0.02/3] Mass surface density (phys.density)
Mcl 636.12 Msun [7.7/61358] Clump mass (phys.mass)
Lcl 988.00 Lsun [8.6/140822] Clump luminosity (phys.luminosity)
Lcl/Mcl 1.55 Lsun/Msun [0.09/23] Ratio of clump luminosity to mass (phys.luminosity)

AGAL 2  Display data from the ATLASGAL compact source catalog (Contreras+, 2013, J/A+A/549/A45 and Urquhart+, 2014, J/A+A/568/A41) within 10" (meta.ref.url)
  
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