| Show | Sort | Join tables | Column | Constraint | Explain (UCD) |
| | | (ALL) | recno | | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD) |
| | |  (ALL) | GASS | | (i) GASS identification number (meta.id;meta.main) (ID_MAIN) |
| | | (1+2+3) | SDSS | (char) | SDSS designation (JHHMMSS.ss+DDMMSS.s) (meta.id) (ID_ALTERNATIVE) |
| | | (1+2+3) | z | | SDSS redshift (Note 1)
(src.redshift) (REDSHIFT_HC) |
| | | (1) | logM | [Msun] | Stellar mass (Note 2)
(phys.mass) (PHYS_MASS_MISC) |
| | | (1) | R50.z | arcsec | Radii containing 50% of the Petrosian flux in the z band (phys.angSize;src) (EXTENSION_RAD) |
| | | (1) | R50.r | arcsec | Radii containing 50% of the Petrosian flux in the r band (phys.angSize;src) (EXTENSION_RAD) |
| | | (1) | R90.r | arcsec | Radii containing 90% of the Petrosian flux in the r band (phys.angSize;src) (EXTENSION_RAD) |
| | | (1) | logmu | [Msun/kpc2] | Stellar mass surface density (Note 3)
(phys.density) (PHYS_DENSITY_MASS_SURF) |
| | | (1) | Ar | mag | Galactic extinction in the r band, from SDSS (phys.absorption.gal) (PHOT_EXTINCTION_INT) |
| | | (1) | rmag | mag | r-band model magnitude from the SDSS, corrected for Galactic extinction (phot.mag;em.opt.R) (PHOT_SDSS_R) |
ALL cols | | | |
| | | (1) | NUV-r | mag | (n) NUV-r observed colour from our reprocessed photometry, corrected for Galactic extinction (phot.color;em.UV;em.opt) (PHOT_CI_UV-OPT) |
| | | (1) | TNUV | s | (n) Exposure time of the GALEX NUV image (time.duration;obs.exposure) (TIME_EXPTIME) |
| | | (1) | Tmax | min | Maximum on-source integration time, required to reach the limiting HI mass fraction (Note 4)
(time.duration;stat.max) (TIME_EXPTIME) |
| | | (1) | Sloan | (char) | Display the SDSS data for this source (meta.ref.url) (DATA_LINK) |
| | | (1) | DR7 | (char) | Details from the SDSS-DR7 photometric Catalog (2009, Cat. II/294) (meta.ref.url) (DATA_LINK) |
| | | (1) | SimbadName | (char) | Designation understandable by the Simbad data-base (meta.id) (ID_ALTERNATIVE) |
| | | (1) | _RA | deg | (i) Position, derived from the SDSS name (right ascension part) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN) |
| | | (1) | _DE | deg | (i) Position, derived from the SDSS name (declination part) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| | | (2+3) | Ton | min | On-source integration time of the Arecibo observation (Note 1)
(time.duration;obs.exposure) (TIME_EXPTIME) |
| | | (2) | DV | km/s | Velocity resolution of the final, smoothed spectrum (phys.veloc) (VELOC_MISC) |
| | | (2) | zHI | | Redshift, measured from the Hi spectrum (Note 2)
(src.redshift;pos.heliocentric) (REDSHIFT_HC) |
| | | (2) | W50 | km/s | Observed velocity width of the source line profile, measured at 50% level of each peak (spect.line.width) (SPECT_LINE_WIDTH) |
| | | (2) | e_W50 | km/s | Error on the width (sum in quadrature of the statistical and systematic uncertainties) (Note 3)
(stat.error) (ERROR) |
ALL cols | | | |
| | | (2) | W50c | km/s | Velocity width corrected for instrumental broadening and cosmological redshift only (Note 4)
(spect.line.width) (SPECT_VELOC_WIDTH) |
| | | (2) | FHI | Jy.km/s | Observed, integrated HI-line flux density, F=∫Sdv, measured on the smoothed and baseline-subtracted spectrum (phot.flux.density) (SPECT_FLUX_VALUE) |
| | | (2) | e_FHI | Jy.km/s | Uncertainty on FHI (sum in quadrature of the statistical and systematic errors) (Note 5)
(stat.error) (ERROR) |
| | | (2+3) | rms | mJy | rms noise of the observation, measured on the signal- and RFI-free portion of the smoothed spectrum (stat.stdev;instr.det.noise;obs) (INST_NOISE) |
| | | (2) | S/N | | Signal-to-noise ratio of the HI spectrum (Note 6)
(stat.snr) (INST_S/N) |
| | | (2+3) | logMHI | [Msun] | base-10 logarithm of the HI mass (Note 7)
(phys.mass) (PHYS_MASS_MISC) |
| | | (2+3) | logMHI/M* | | base-10 logarithm of the HI mass fraction (phys.mass;arith.ratio) (PHYS_MASS_RATIO) |
| | | (2) | Q | | [1/5] Quality flag (1=good, 2=marginal, 5=confused) (Note 8)
(meta.code.qual) (CODE_QUALITY) |
| | | (2+3+4) | Note | (char) | [*] An asterisk indicates the presence of a note for the source in appen.dat file (meta.note) (NOTE) |
| | | (3) | l_logMHI | (char) | Limit flag on logMHI (meta.code.error) (CODE_LIMIT) |
| | | (3) | l_logMHI/M* | (char) | Limit flag on logMHI/M* (meta.code.error) (CODE_LIMIT) |
ALL cols | | | |