J/A+A/522/A88/table7 | Photometric identification of BHB stars (Smith+, 2010) Catalogue of SDSS BHB candidates (294652 rows) | recno=254883 |
Column | Value | Explain (UCD) | |
_RAJ2000 | 20 24 52.18047 | "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 | +14 48 07.1270 | "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) |
_RAB1950 | 20 22 32.60382 | "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 | +14 38 19.1928 | "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) |
_Glon | 057.30704372 | 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 | -12.98247921 | 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) |
254883recno | 254883 | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) | |
ObjID | 758877495580756308 | SDSS ObjID from PhotoObj table (meta.id) | |
plate | 2257 | SDSS plate from specObj table when available (obs.field) | |
MJD | 53612 | SDSS MJD from specObj table when available (time.epoch) | |
fiber | 414 | SDSS fiber from specObj table when available (meta.note) | |
umag | 21.450 | mag | SDSS u-band psf magnitude (phot.mag;em.opt.U) |
e_umag | 0.128 | mag | SDSS u-band magnitude error (stat.error;phot.mag;em.opt.U) |
gmag | 20.470 | mag | SDSS g-band psf magnitude (phot.mag;em.opt.B) |
e_gmag | 0.052 | mag | SDSS g-band magnitude error (stat.error;phot.mag;em.opt.B) |
rmag | 20.516 | mag | SDSS r-band psf magnitude (phot.mag;em.opt.R) |
e_rmag | 0.035 | mag | SDSS r-band magnitude error (stat.error;phot.mag;em.opt.R) |
imag | 20.634 | mag | SDSS i-band psf magnitude (phot.mag;em.opt.I) |
e_imag | 0.065 | mag | SDSS i-band magnitude error (stat.error;phot.mag;em.opt.I) |
zmag | 20.609 | mag | SDSS z-band psf magnitude (phot.mag;em.opt.I) |
e_zmag | 0.228 | mag | SDSS z-band magnitude error (stat.error;phot.mag;em.opt.I) |
uext | 0.560 | mag | u-band extinction from SDSS pipeline (Note 2) (phys.absorption) |
gext | 0.412 | mag | g-band extinction from SDSS pipeline (Note 2) (phys.absorption) |
rext | 0.299 | mag | r-band extinction from SDSS pipeline (Note 2) (phys.absorption) |
iext | 0.226 | mag | i-band extinction from SDSS pipeline (Note 2) (phys.absorption) |
zext | 0.161 | mag | z-band extinction from SDSS pipeline (Note 2) (phys.absorption) |
Type | BS | Object category, from Xue et al., 2008ApJ...684.1143X (Note 3) (src.class) | |
Psvm | 0.0941 | Probability of BHB from SVM (support vector machine) model (Note 4) (stat.fit.goodness) | |
e_Psvm | 0.1851 | Standard deviation of Psvm for 10 trials (Note 4) (stat.stdev) | |
Prior | 0.1007 | 2d prior applied to probability. (stat.fit.param) | |
modP | 0.01149 | Psvm probability modified by prior (Note 5) (stat.fit.goodness) | |
Dist | 80.28 | kpc | Estimated distance in kpc (Note 6) (pos.distance;pos.heliocentric) |
e_Dist | 0.0407 | Fractional (relative) error on the distance (stat.error) | |
SDSS | SDSS | Display the SDSS data for this quasar (meta.ref.url) | |
DR7 | DR7 | Details from the SDSS-DR7 Photometric Catalog (Cat. II/294) (meta.ref.url) | |
RAJ2000 | 306.217419 | deg | (i) Right ascension in decimal degrees (J2000.0) (Note 1) (pos.eq.ra;meta.main) |
DEJ2000 | +14.801980 | deg | (i) Declination in decimal degrees (J2000.0) (Note 1) (pos.eq.dec;meta.main) |
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