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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/A+A/522/A88
  Photometric identification of BHB stars (Smith+, 2010)
ReadMe+ftp
2010A&A...522A..88S
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/522/A88/table7(c)Catalogue of SDSS BHB candidates (294652 rows)
2.J/A+A/522/A88/tablea3Model data for the one-class SVM (support vector machine) model (152 rows)
3.J/A+A/522/A88/tablea4Model data for two-class SVM model (2645 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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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)ObjID (char) SDSS ObjID from PhotoObj table (meta.id)
  (1)plate  (n) SDSS plate from specObj table when available (obs.field)
  (1)MJD  (n) SDSS MJD from specObj table when available (time.epoch)
  (1)fiber  (n) SDSS fiber from specObj table when available (meta.note)
  (1)umag mag SDSS u-band psf magnitude (phot.mag;em.opt.U)
  (1)e_umag mag SDSS u-band magnitude error (stat.error;phot.mag;em.opt.U)
  (1)gmag mag SDSS g-band psf magnitude (phot.mag;em.opt.B)
  (1)e_gmag mag SDSS g-band magnitude error (stat.error;phot.mag;em.opt.B)
  (1)rmag mag SDSS r-band psf magnitude (phot.mag;em.opt.R)
  (1)e_rmag mag SDSS r-band magnitude error (stat.error;phot.mag;em.opt.R)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)imag mag SDSS i-band psf magnitude (phot.mag;em.opt.I)
  (1)e_imag mag SDSS i-band magnitude error (stat.error;phot.mag;em.opt.I)
  (1)zmag mag SDSS z-band psf magnitude (phot.mag;em.opt.I)
  (1)e_zmag mag SDSS z-band magnitude error (stat.error;phot.mag;em.opt.I)
  (1)uext mag u-band extinction from SDSS pipeline (Note 2)   (phys.absorption)
  (1)gext mag g-band extinction from SDSS pipeline (Note 2)   (phys.absorption)
  (1)rext mag r-band extinction from SDSS pipeline (Note 2)   (phys.absorption)
  (1)iext mag i-band extinction from SDSS pipeline (Note 2)   (phys.absorption)
  (1)zext mag z-band extinction from SDSS pipeline (Note 2)   (phys.absorption)
  (1)Type (char) Object category, from Xue et al., 2008ApJ...684.1143X (Note 3)   (src.class)
  (1)Psvm  Probability of BHB from SVM (support vector machine) model (Note 4)   (stat.fit.goodness)
  (1)e_Psvm  Standard deviation of Psvm for 10 trials (Note 4)   (stat.stdev)
  (1)Prior  2d prior applied to probability. (stat.fit.param)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)modP  Psvm probability modified by prior (Note 5)   (stat.fit.goodness)
  (1)Dist kpc Estimated distance in kpc (Note 6)   (pos.distance;pos.heliocentric)
  (1)e_Dist  Fractional (relative) error on the distance (stat.error)
  (1)SDSS (char) Display the SDSS data for this quasar (meta.ref.url)
  (1)DR7 (char) Details from the SDSS-DR7 Photometric Catalog (Cat. II/294) (meta.ref.url)
  (1)RAJ2000 deg (i) Right ascension in decimal degrees (J2000.0) (Note 1)   (pos.eq.ra;meta.main)
  (1)DEJ2000 deg (i) Declination in decimal degrees (J2000.0) (Note 1)   (pos.eq.dec;meta.main)
  (2+3)y.alpha  Product of weight and class label for each support vector (stat.fit.param)
  (2+3)u-g  Standardized dereddened u-g colour (phot.color;em.opt.U;em.opt.B)
  (2+3)g-r  Standardized dereddened g-r colour (phot.color;em.opt.B;em.opt.R)
  (2+3)r-i  Standardized dereddened r-i colour (phot.color;em.opt.R;em.opt.I)
  (2+3)i-z  Standardized dereddened i-z colour (phot.color;em.opt.I;em.opt.I)

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