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J/ApJ/905/78
  Chandra obs. of IRDCs G034.43+00.24 and G035.39-00.33 (Yu+, 2020)
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2020ApJ...905...78Y
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Post annotation 		img(gal)
1.J/ApJ/905/78/table1(c)Log of Chandra observations of IRDCs G034.43+0.2 (G34.4) and G035.39-0.33 (G35.4) (7 rows)
2.J/ApJ/905/78/g34sources(c)Basic source information of G034.43+0.2 (G34.4) (Table 2) and stellar counterparts (Table 7) (112 rows)
3.J/ApJ/905/78/g35sources(c)Basic source information of G035.39-0.33 (G35.4) (Table 3) and stellar counterparts (Table 8) (209 rows)
4.J/ApJ/905/78/table5X-ray spectroscopy for selected sources of G34.4: thermal plasma fits (43 rows)
5.J/ApJ/905/78/table6X-ray spectroscopy for selected Sources of G35.4: thermal plasma fits (121 rows)

Simple ConstraintList Of Constraints
 
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)Name (char) IRDC target (meta.id;meta.main)
  (1)Target (char) Other name of the IRDC target (meta.id)
  (1)ObsID   [14541/20103] Chandra observation identifier (meta.id;obs.param;obs)
  (1)Obs s (n)Observation date, start (UT) (time.start;obs)
  (1)Exp s [17115/56074] Exposure time (time.duration;obs.exposure)
  (1+2+3)RAJ2000 deg (i) [283.32/284.3] Right ascension aim point (J2000) (pos.eq.ra;meta.main)
  (1+2+3)DEJ2000 deg (i) [1.4/2.13] Declination aim point (J2000) (pos.eq.dec;meta.main)
  (1)Roll deg [146.9/239.21] Roll angle (instr.offset)
  (2)Xsp (char) Display the X-ray spectroscopy (Table 5) (meta.ref.url)
  (2+3+4+5)Seq   [1/209] X-ray catalog sequence number (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2+3+4+5)CXOU (char) (i) IAU designation (HHMMSS.ss+DDMMSS.s; J2000) (meta.id;meta.main)
  (2+3)Err arcsec [0/1.5] Estimated random component of position error (stat.error)
  (2+3)Theta arcmin [0.3/11.8] Offaxis angle (instr.offset)
  (2+3)Net-F ct [2/893] Estimated net counts extracted in total energy band (0.5-8keV) (phot.count;em.X-ray)
  (2+3)delNet-F ct [1.5/31] Average of upper and lower errors on Net-F (stat.error)
  (2+3)Bk-F ct [100/1997] Background counts extracted (instr.background)
  (2+3)Net-H ct [-0.5/541] Estimated net counts extracted in hard band (2-8keV) (phot.count;em.X-ray)
  (2+3)fPSF   [0.4/0.9] Fraction of PSF enclosed within extraction region (instr.det.psf)
  (2+3+4+5)Sig   [1.1/29.1] Photometric significance (stat.fit.goodness;phot)
  (2+3)l_logPB (char) Limit flag on logPB (meta.code.error)
  (2+3)logPB   [-5/-2.3] Log probability (Note 1)   (stat.fit.goodness)
  (2+3)Anom (char) Source anomalies (Note 2)   (meta.code)
  (2+3)Var (char) Variability characterization based on K-S statistics (Note 3)   (meta.code;src.var)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2+3)Exp ks [28.1/180] Effective Exposure time (time.duration;obs.exposure)
  (2+3)Emed keV [0.8/7] Background-corrected median photon energy (em.energy;stat.median;em.X-ray)
  (2+3)HR   [-1/1] Hardness ratio, (H-S)/(H+S), with hard-band: 2-8keV and soft-band: 0.5-1.2keV (meta.note)
  (2+3)2MASS (char) NIR identification (HHMMSSss+DDMMSSs; J2000) (meta.id.cross)
  (2+3)Jmag mag (n) [8.6/18.6] J band apparent magnitude (phot.mag;em.IR.J)
  (2+3)Hmag mag (n) [8.3/16.7] H band apparent magnitude (phot.mag;em.IR.H)
  (2+3)Kmag mag (n) [8.1/15.7] K band apparent magnitude (phot.mag;em.IR.K)
  (2+3)WISE (char) WISE source name (JHHMMSS.ss+DDMMSS.s) (meta.id.cross)
  (2+3)W1mag mag (n) [7.5/13.3] W1 band apparent magnitude (phot.mag;em.IR.3-4um)
  (2+3)W2mag mag (n) [7/13.7] W2 band apparent magnitude (phot.mag;em.IR.4-8um)
  (2+3)W3mag mag (n) [3.5/11.3] W3 band apparent magnitude (phot.flux.density;em.IR.8-15um)
  (2+3)W4mag mag (n) [-0.92/8.7] W4 band apparent magnitude (phot.flux.density;em.IR.15-30um)
  (2+3)GLIMPSE (char) MIR identification (GLLL.llll+BB.bbbb) (meta.id.cross)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2+3)3.6mag mag (n) [7.4/15.6] IRAC 3.6um band apparent magnitude (phot.mag;em.IR.3-4um)
  (2+3)4.5mag mag (n) [7.4/14.2] IRAC 4.5um band apparent magnitude (phot.mag;em.IR.4-8um)
  (2+3)5.8mag mag (n) [6.9/12.7] IRAC 5.8um band apparent magnitude (phot.flux.density;em.IR.4-8um)
  (2+3)8.0mag mag (n) [5.8/12.1] IRAC 8.0um band apparent magnitude (phot.flux.density;em.IR.8-15um)
  (2+3+4+5)Note (char) Additional notes (meta.note)
  (2+3)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
  (3)Xsp  (n)Display the X-ray spectroscopy (Table 6) (meta.ref.url)
  (4+5)NetCts ct [10/99] Estimated net counts extracted in total band (phot.count;em.X-ray)
  (4+5)logNH [cm-2] [20.2/23.5] Estimated column density (phys.columnDensity)
  (4+5)E_logNH [cm-2] (n) [0.1/2.6] Upper uncertainty in logNH (stat.error;stat.max)
  (4+5)e_logNH [cm-2] (n) [0.1/0.9] Lower uncertainty in logNH (stat.error)
  (4+5)kT keV [0.2/10] Estimated plasma energy (phys.temperature)
  (4+5)e_kT keV (n) [0.2/5.5] Lower uncertainty in kT (stat.error;phys.energy)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (4+5)E_kT keV (n) [0.5/10] Upper uncertainty in kT (stat.error;stat.max)
  (4+5)logEM [cm-3] [51.7/57.8] Estimated plasma emission measure (phys.emissMeasure)
  (4+5)e_logEM [cm-3] [0.1/9.4] Lower uncertainty in logEM (stat.error)
  (4+5)E_logEM [cm-3] (n) [0.1/3.3] Upper uncertainty in logEM (stat.error;stat.max)
  (4+5)logLs [10-7W] [25.2/31.3] Observed soft band (0.5-1.2keV) X-ray luminosity, in erg/s (phys.luminosity;em.X-ray)
  (4+5)logLh [10-7W] [27.8/32.2] Observed hard band (2-7keV) X-ray luminosity, in erg/s (phys.luminosity;em.X-ray)
  (4+5)logLhc [10-7W] [27.9/32.7] Absorption corrected hard band X-ray luminosity, in erg/s (phys.luminosity;em.X-ray)
  (4+5)logLt [10-7W] [29.7/32.2] Observed total band X-ray luminosity in erg/s units (phys.luminosity;em.X-ray)
  (4+5)logLtc [10-7W] [30/35.7] Absorption corrected total band X-ray luminosity, in erg/s (phys.luminosity;em.X-ray)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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