RAVEPUB_DR5.RAVE_HSOY

Description

A crossmatch of RAVE_DR5 and the Hot Stuff for One Year (HSOY) catalog. Only stars from HSOY with comp=0 were taken to remove all possible ambiguities.

The RAVE_HSOY table contains the match of RAVE observations with a unique match (ipix = ID_PPMXL) and comp=0 to the corresponding PPMXL object in HSOY. The aim of HSOY is to provide improved proper motions partly based on Gaia data, allowing some studies to be carried out just now or as pilot studies for later larger projects requiring higher-precision data. The HSOY catalogue was compiled using the positions taken from Gaia-DR1 combined with the input data from the PPMXL catalogue, employing the same weighted least-squares technique that was used to assemble the PPMXL catalogue itself. Results. This effort resulted in a four-parameter astrometric catalogue containing 583,000,000 objects, with Gaia-DR1 quality positions and proper motions with precisions from significantly less than 1 mas/yr to 5 mas/yr, depending on the object's brightness and location on the sky. (http://ads.ari.uni-heidelberg.de/abs/2017arXiv170102629A)

The data can be accessed using the query interface or downloaded at Downloads. Please cite this data set using the unique digital object identifier doi:10.17876/rave/dr.5/018.

Columns

ColumnTypeUCDUnitDescription
RAVE_OBS_IDvarchar
ipixbigintmeta.id.crossThe PPMXL object identifier, which in turn is the q3c ipix of the original USNO-B object; for HSOY, only (ipix, comp) is a unique identifier (primary key). The recommended identifier form is 'HSOY ipix.comp, where comp=0 for NULL comps. This is what the SCS generates.
compsmallintmeta.code.multipIf non-null this indicates that multiple Gaia objects matched the PPMXL object; this may indicate bona fide multiple stars, but more likely is due to failed matching of Gaia observations at different epochs. In both cases, proper motions must be used with care. The index is artificial, i.e., no primary, secondary, etc, is implied. ipix+comp together are a primary key to hsoy.main.
raj2000doublepos.eq.ra
meta.main
degRight Ascension J2000.0, epoch 2000.0
dej2000doublepos.eq.dec
meta.main
degDeclination J2000.0, epoch 2000.0
e_raeprafloatstat.error
pos.eq.ra
meta.main
degMean error in RA*cos(delta) at mean epoch
e_deepdefloatstat.error
pos.eq.dec
meta.main
degMean error in Dec at mean epoch
pmrafloatpos.pm
pos.eq.ra
deg/yrProper Motion in RA*cos(delta)
pmdefloatpos.pm
pos.eq.dec
deg/yrProper Motion in Dec
e_pmrafloatstat.error
pos.pm
pos.eq.ra
deg/yrMean error in pmRA*cos(delta)
e_pmdefloatstat.error
pos.pm
pos.eq.dec
deg/yrMean error in pmDE
eprafloattime.epoch
pos.eq.ra
yrMean Epoch (RA)
epdefloattime.epoch
pos.eq.dec
yrMean Epoch (Dec)
jmagfloatphot.mag
em.IR.J
magJ selected default magnitude from 2MASS
e_jmagfloatstat.error
phot.mag
em.IR.J
magJ total magnitude uncertainty
hmagfloatphot.mag
em.IR.H
magH selected default magnitude from 2MASS
e_hmagfloatstat.error
phot.mag
em.IR.H
magH total magnitude uncertainty
kmagfloatphot.mag
em.IR.K
magK_s selected default magnitude from 2MASS
e_kmagfloatstat.error
phot.mag
em.IR.K
magK_s total magnitude uncertainty
b1magfloatphot.mag
em.opt.B
magB mag from USNO-B, first epoch
b2magfloatphot.mag
em.opt.B
magB mag from USNO-B, second epoch
r1magfloatphot.mag
em.opt.R
magR mag from USNO-B, first epoch
r2magfloatphot.mag
em.opt.R
magR mag from USNO-B, second epoch
imagfloatphot.mag
em.opt.I
magI mag from USNO-B
magsurveyscharmeta.codeSurveys the USNO-B magnitudes are taken from
nobssmallintmeta.number
obs
Number of observations contributing to this column (always nobs(ppmxl)+1)
gaia_idbigintmeta.idUnique source identifier
phot_g_mean_magfloatphot.mag
em.opt
stat.mean
magMean magnitude in the G band from Gaia DR1. Magnitudes for which err_flux/flux>0.1 have been dropped.
e_phot_g_mean_magfloatstat.error
phot.mag
em.opt.V
s**-1Estimated error in Gaia G-band magnitude. This is estimated as 1.09*err_flux/flux which is good as a symmetric 1 σ-error of the magnitude to at least within a few percent when err_flux/flux is smaller than 0.1, as it is for the HSOY objects.
clonesmallintmeta.code.qualIf 1, more than one PPMXL object matched to this Gaia object (i.e.: proper motion is probably wrong, any apparent duplicity is probably spurious). This is normally due to failed matching of objects from different plates in USNO-B.