Information on Service 'ML-Enhanced GCVS: Variable Stars with Gaia DR3 and TESS'

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This catalog combines photometric and astrometric data from three major sources: the General Catalogue of Variable Stars (GCVS, 2017ARep...61...80S), Gaia DR3, and TESS. It provides detailed information on variable stars, including their coordinates, magnitudes, variability periods, parallaxes, proper motions, spectral classifications, and other physical characteristics. Additionally, the catalog includes computed parameters such as galactocentric distances and model-predicted values for spectral types and variability types for stars with incomplete observational data. The catalog aims to facilitate studies of stellar variability, galactic structure, and stellar evolution.

For a list of all services and tables belonging to this service's resource, see Information on resource 'ML-Enhanced GCVS: Variable Stars with Gaia DR3 and TESS'

Overview

You can access this service using:

This service is published as follows:

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

NameTable Head DescriptionUnitUCD
DEC Delta (ICRS) Declination (ICRS decimal) deg pos.eq.dec
hscs_pos Position/Name Coordinates (as h m s, d m s or decimal degrees), or SIMBAD-resolvable object N/A N/A
hscs_sr Search radius Search radius in arcminutes N/A N/A
maxrec Match limit Maximum number of records returned. Pass 0 to retrieve service parameters. N/A N/A
period_gcvs Period_gcvs Variability period (days) from GCVS d time.period
RA Alpha (ICRS) Right Ascension (ICRS decimal) deg pos.eq.ra
responseformat Output Format File format requested for output. N/A meta.code.mime
SR Search Radius Search radius deg N/A
verb Verbosity Exhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns. N/A N/A

Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

NameTable Head DescriptionUnitUCD
_r Dist. Distance to cone center deg pos.distance
d_tess D_tess Distance to the star in parsecs (TESS) pc pos.distance
dec_gcvs Dec_gcvs Declination (J2000) from GCVS deg pos.eq.dec;meta.main
final_spect_type Final_spect_type Final assigned spectral type (observed or predicted) N/A src.spType
final_var_type Final_var_type Final assigned variability type (observed or predicted) N/A src.varType
logg_tess Logg_tess Surface gravity (log g) from TESS cm/s2 phys.gravity
mass_tess Mass_tess Stellar mass in solar masses (TESS) solMass phys.mass
max_mag_gcvs Max_mag_gcvs Maximum recorded magnitude (GCVS) mag phot.mag;stat.max
min_mag_gcvs Min_mag_gcvs Minimum recorded magnitude (GCVS) mag phot.mag;stat.min
name_gcvs Name_gcvs Star name in the General Catalogue of Variable Stars (GCVS) N/A meta.id
parallax_gaia Parallax_gaia Stellar parallax in milliarcseconds (Gaia DR3) mas pos.parallax
period_gcvs Period_gcvs Variability period (days) from GCVS d time.period
phot_g_mag_gaia Phot_g_mag_gaia Mean magnitude in Gaia G-band mag phot.mag;em.opt
pmdec_gaia Pmdec_gaia Proper motion in Declination (mas/yr, Gaia DR3) mas/yr pos.pm;pos.eq.dec
pmra_gaia Pmra_gaia Proper motion in Right Ascension (mas/yr, Gaia DR3) mas/yr pos.pm;pos.eq.ra
r_gal_calc R_gal_calc Galactocentric distance of the star (calculated) kpc pos.distance.galactic
ra_gcvs Ra_gcvs Right Ascension (J2000) from GCVS deg pos.eq.ra;meta.main
source_id_gaia Source_id_gaia Unique Gaia DR3 source identifier N/A meta.id;meta.main
spt_source Spt_source Source of spectral type (GCVS, Gaia, or machine learning prediction) N/A meta.code
teff_tess Teff_tess Effective temperature (Kelvin) from TESS K phys.temperature.effective
tess_id Tess_id TESS Input Catalog identifier N/A meta.id
var_source Var_source Source of variability type (GCVS, Gaia, or machine learning prediction) N/A meta.code
var_star_cpt_gcvs Var_star_cpt_gcvs Component of a variable star system in GCVS N/A meta.id
var_star_num_gcvs Var_star_num_gcvs Variable star number assigned in GCVS N/A meta.id

VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

NameTable Head DescriptionUnitUCD Verb. Level
name_gcvs Name_gcvs Star name in the General Catalogue of Variable Stars (GCVS) N/A meta.id 1
ra_gcvs Ra_gcvs Right Ascension (J2000) from GCVS deg pos.eq.ra;meta.main 1
dec_gcvs Dec_gcvs Declination (J2000) from GCVS deg pos.eq.dec;meta.main 1
source_id_gaia Source_id_gaia Unique Gaia DR3 source identifier N/A meta.id;meta.main 1
parallax_gaia Parallax_gaia Stellar parallax in milliarcseconds (Gaia DR3) mas pos.parallax 1
tess_id Tess_id TESS Input Catalog identifier N/A meta.id 1
min_mag_gcvs Min_mag_gcvs Minimum recorded magnitude (GCVS) mag phot.mag;stat.min 5
max_mag_gcvs Max_mag_gcvs Maximum recorded magnitude (GCVS) mag phot.mag;stat.max 5
period_gcvs Period_gcvs Variability period (days) from GCVS d time.period 5
pmra_gaia Pmra_gaia Proper motion in Right Ascension (mas/yr, Gaia DR3) mas/yr pos.pm;pos.eq.ra 5
pmdec_gaia Pmdec_gaia Proper motion in Declination (mas/yr, Gaia DR3) mas/yr pos.pm;pos.eq.dec 5
phot_g_mag_gaia Phot_g_mag_gaia Mean magnitude in Gaia G-band mag phot.mag;em.opt 5
teff_tess Teff_tess Effective temperature (Kelvin) from TESS K phys.temperature.effective 5
logg_tess Logg_tess Surface gravity (log g) from TESS cm/s2 phys.gravity 5
mass_tess Mass_tess Stellar mass in solar masses (TESS) solMass phys.mass 5
d_tess D_tess Distance to the star in parsecs (TESS) pc pos.distance 5
final_spect_type Final_spect_type Final assigned spectral type (observed or predicted) N/A src.spType 5
final_var_type Final_var_type Final assigned variability type (observed or predicted) N/A src.varType 5
_r Dist. Distance to cone center deg pos.distance 10
var_star_num_gcvs Var_star_num_gcvs Variable star number assigned in GCVS N/A meta.id 10
var_star_cpt_gcvs Var_star_cpt_gcvs Component of a variable star system in GCVS N/A meta.id 10
r_gal_calc R_gal_calc Galactocentric distance of the star (calculated) kpc pos.distance.galactic 10
spt_source Spt_source Source of spectral type (GCVS, Gaia, or machine learning prediction) N/A meta.code 10
var_source Var_source Source of variability type (GCVS, Gaia, or machine learning prediction) N/A meta.code 10

VOResource XML (that's something exclusively for VO nerds)