VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/ApJ/902/114
  Stellar X-ray activity. I. Chandra, Gaia & GALEX (Wang+, 2020)
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2020ApJ...902..114W
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/902/114/table2(c)Main properties for the stars in our sample (5906 rows)
2.J/ApJ/902/114/table1Individual Chandra observation for stars in our sample (10063 rows)
3.J/ApJ/902/114/table4Stars with UV emission in our sample (Section 4.2) (604 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)Nc  (n)Number of Chandra observations for this source (link to Table 1) (meta.number)
   (ALL)CXOGSG (char) (i) Object identifier (JHHMMSS.s+DDMMSS) (meta.id;meta.main)
  (1)UV  (n)Display the GALEX ultraviolet data for this source (link to Table 4) (meta.ref.url)
  (1)RAJ2000 deg (i) Right Ascension (J2000) (pos.eq.ra;meta.main)
  (1)DEJ2000 deg (i) [-31.6/82.5] Declination (J2000) (pos.eq.dec;meta.main)
  (1)Class (char) Stellar classification ("g"= giant, 697 occurrences; d=dwarf; y=YSO; See Section 2.3) (src.spType)
  (1)Dist pc [19/10520] Gaia DR2 distance (pos.distance;pos.heliocentric)
  (1)E_Dist pc [0/4337] Upper uncertainty in Dist (stat.error;stat.max)
  (1)e_Dist pc [0/2644] Lower uncertainty in Dist (stat.error)
  (1)E(B-V) mag [0/3.6] The (B-V) color excess from PS1 3D map (phot.color.excess)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Fx 10-15mW/m2 [0.2/14360] Average unabsorbed 0.3-8keV flux (in units of 10–15erg/s/cm2) (phot.flux;em.X-ray)
  (1)e_Fx 10-15mW/m2 [0.1/1266] Uncertainty in Fx (stat.error)
  (1)Lx 10-7W [3.8e+26/3.8e+33] The 0.3-8keV luminosity; erg/s (phys.luminosity;em.X-ray)
  (1)e_Lx 10-7W [1e+26/1e+33] Uncertainty in Lx (stat.error)
  (1)logRx [-] [-8.1/-0.9] log X-ray to bolometric luminosity ratio (phys.luminosity;arith.ratio)
  (1)e_logRx [-] [0/0.6] Uncertainty in logRx (stat.error)
  (1)HR1  (n) [-0.99/1] Hardness ratio, HR1=(M-S)/(M+S) (Note 1)   (phot.flux;arith.ratio)
  (1)e_HR1  (n) [0/3.1] Uncertainty in HR1 (stat.error)
  (1)HR2  (n) [-1/0.99] Hardness ratio, HR2=(H-M)/(H+M) (Note 2)   (phot.flux;arith.ratio)
  (1)e_HR2  (n) [0/5.2] Uncertainty in HR2 (stat.error)
  (1)Gaia (char) Display the Gaia DR2 distances from Bailer-Jones+, 2018, I/347 within 3" (meta.ref.url)
  (2)ObsID  Chandra/ACIS observation identifier (meta.id;obs.param;obs)
  (2)MJD d (i) [51405.47/56987.76] Modified Julian Date (time.epoch)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)CR ct/ks [0.03/571] Count rate (phot.count;em.X-ray)
  (2)e_CR ct/ks [0.03/22] Uncertainty in CR (stat.error)
  (2)Flux 10-15mW/m2 [0.2/216000] Flux; 1e-15 erg/s/cm2 (phot.flux;em.X-ray)
  (2)e_Flux 10-15mW/m2 [0.1/34680] Uncertainty in Flux (stat.error;phot.flux)
  (3)logFUV [mW/m2] (n) [4.88/9.5] log GALEX FUV excess flux from activity (phot.color.excess;em.UV.100-200nm)
  (3)e_logFUV [mW/m2] (n) [0.01/7.3] Uncertainty in logFUV (stat.error)
  (3)logNUV [mW/m2] (n) [4/16.3] log GALEX NUV excess flux from activity (phot.color.excess;em.UV.200-300nm)
  (3)e_logNUV [mW/m2] (n) [0.01/2037] Uncertainty in logNUV (stat.error)
  (3)logR'FUV [-] (n) [-5.7/-0.8] log GALEX FUV activity index (phot.flux;arith.ratio)
  (3)e_logR'FUV [-] (n) [0.01/7.3] Uncertainty in logR'FUV (stat.error)
  (3)logR'NUV [-] (n) [-6.8/4.8] log GALEX NUV activity index (phot.flux;arith.ratio)
  (3)e_logR'NUV [-] (n) [0.01/2037] Uncertainty in logR'NUV (stat.error)

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