This table is available for ADQL queries and through the TAP endpoint.
Resource Description:
For a list of all services and tables belonging to this table's resource, see Information on resource 'Photometric redshifts in Stripe 82'
This table has an associated publication. If you use data from it, it may be appropriate to reference 2018MNRAS.475.3613S (ADS BibTeX entry for the publication) either in addition to or instead of the service reference.
To cite the table as such, we suggest the following BibTeX entry:
@MISC{vo:cs82morphoz_main, year=2017, title={Photometric redshifts in Stripe 82}, author={Soo, John Y H and Moraes, Bruno and Joachimi, Benjamin and Hartley, William and Lahav, Ofer and Charbonnier, Aldée and Makler, Martín and Pereira, Maria E S and Comparat, Johan and Erben, Thomas and Leauthaud, Alexie and Shan, Huanyuan and Van Waerbeke, Ludovic}, url={https://dc.zah.uni-heidelberg.de/tableinfo/cs82morphoz.main}, howpublished={{VO} resource provided by the {GAVO} Data Center} }
The distributions P(z) used to estimate z_phot and z_morph are available as FITS binary tables from pz_phot (1.4 GB) and pz_morph (0.8 GB), respectively.
The data in the cs82morphoz.main table is also available as a FITS binary table: phz.fits (0.7 GB).
Sorted alphabetically. [Sort by DB column index]
Name | Table Head | Description | Unit | UCD |
---|---|---|---|---|
aspect_exp | Ax. Ratio | Exponential fit axis-ratio | N/A | src.morph.param |
class_spec | Class | Class of object based on spectral fit: GALAXY or QSO | N/A | meta.code.class |
dec | Dec | ICRS Declination | deg | pos.eq.dec;meta.main |
fitclass | Fit class | lensFit star-galaxy classifier: 1=stars; 0=galaxies; -1=no usable data; -2=blended objects; -3=miscellaneous reasons; -4=chi-square exceeded critical value | N/A | meta.code;src.class |
flags | Ex. Qual | Source extraction quality flag (ranges from 0 to 3, with 0 being the best) | N/A | meta.code |
lens | lens? | Lensing tag. Objects with lens=1 are objects from the lensing subsample (fitclass=0, weight>0) | N/A | meta.code |
mag_auto | i Kron | CS82 Kron i-band magnitude | mag | phot.mag;em.opt.i |
mag_dered_g | g dered | SDSS dereddened g-band magnitude | mag | phot.mag;em.opt.V |
mag_dered_i | i dered | SDSS dereddened i-band magnitude | mag | phot.mag;em.opt.I |
mag_dered_r | r dered | SDSS dereddened r-band magnitude | mag | phot.mag;em.opt.R |
mag_dered_u | u dered | SDSS dereddened u-band magnitude | mag | phot.mag;em.opt.U |
mag_dered_z | z dered | SDSS dereddened z-band magnitude | mag | phot.mag;em.opt.I |
mag_exp | i fit | CS82 exponential fit i-band magnitude | mag | phot.mag;em.opt.i |
mag_psf | i psf | CS82 PSF i-band magnitude | mag | phot.mag;em.opt.i |
magerr_auto | Err. i Kron | CS82 Kron i-band magnitude error. Signal-to-noise ratio is 1.086/MAGERR_AUTO | mag | stat.error;phot.mag;em.opt.i |
mu_mean_exp | SB | Exponential fit mean surface brightness | mag/arcsec**2 | phot.mag.sb;em.opt.i |
n_ser | Sérsic | Sersic index | N/A | stat.fit.param |
objid_cs82 | CS82 id | Identifier built as im_num*1000000+se_id | N/A | meta.id;meta.main |
objid_sdss | SDSS id | SDSS object ID for objects with matched ugriz broadband magnitudes (if available) | N/A | meta.id.cross |
odds_best | Odds(z best) | Odds value for zbest (=1 if zspec is used) | N/A | stat.fit.goodness |
odds_morph | Odds(z morph) | Odds value for zmorph | N/A | stat.fit.goodness |
odds_phot | Odds(z best) | Odds value for zphot | N/A | stat.fit.goodness |
p_exp | S/E? | Exponential shape probability: ~1 -> disc galaxy; ~0 -> elliptical galaxy | N/A | stat.fit.goodness |
ra | RA | ICRS Right Ascension | deg | pos.eq.ra;meta.main |
reff_exp | R | Exponential fit effective radius | arcsec | phys.angsize;src |
source_spec | Src | Source of spectroscopy: SDSS, BOSS, DEEP2, WIGGLEZ or VVDS | N/A | meta.bib |
spread_model_ser | Spread model | Sersic spread model, the star-galaxy separator we used for this study. All objects in this catalogue have SPREAD_MODEL_SER>0.008, which are considered extended objects (galaxies). | N/A | stat.fit.param |
weight | lensFit | lensFit shape measurement confidence. weight>0 indicates good shape measurement | N/A | stat.weight |
zbest | z best | Best redshift for this object, in order of priority: zspec, zphot, zmorph | N/A | src.redshift |
zmorph | z morph | Photometric redshift estimated using inputs i+morphology | N/A | src.redshift |
zphot | z phot | Photometric redshift estimated using inputs ugriz+morphology | N/A | src.redshift |
zspec | z spec | Spectroscopic redshift from source given in source_spec | N/A | src.redshift |
Columns that are parts of indices are marked like this.
The following services may use the data contained in this table:
VO nerds may sometimes need VOResource XML for this table.