Variable Sources: Cepheid stars (gaiadr3.vari_cepheid)

The table has 15021 rows, 81 columns.

Description

This table describes the Cepheid stars.

Attribution

If you have used Gaia data in your research, please use the following acknowledgement:

This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

More information can be found on the credit and citation instructions page.

Columns

Name Type UCD Unit Description
solution_id long meta.version

Solution Identifier
source_id long meta.id
meta.main
meta.ref

Unique source identifier
pf double src.var
time.period 		d

Period corresponding to the fundamental pulsation mode in the G band time series
pf_error float stat.error
time.period 		d

Uncertainty of the pf period
p1_o double src.var
time.period 		d

Period corresponding to the first overtone pulsation mode in the G band time series
p1_o_error float stat.error
time.period 		d

Uncertainty of the p1O period
epoch_g double time.epoch
stat.max 		d

Epoch of the maximum of the light curve in the G band
epoch_g_error float stat.error
time.epoch 		d

Uncertainty on the epoch parameter epochG
epoch_bp double time.epoch
stat.max 		d

Epoch of the maximum of the light curve in the BP band
epoch_bp_error float stat.error
time.epoch 		d

Uncertainty on the epoch parameter epochBp
epoch_rp double time.epoch
stat.max 		d

Epoch of the maximum of the light curve in the RP band
epoch_rp_error float stat.error
time.epoch 		d

Uncertainty on the epoch parameter epochRp
epoch_rv double time.epoch
stat.max 		d

Epoch of the minimum of the radial velocity curve
epoch_rv_error float stat.error
time.epoch 		d

Uncertainty on the epoch parameter epochRv
int_average_g float phot.mag
em.opt 		mag

Intensity-averaged magnitude in the G band
int_average_g_error float stat.error
phot.mag
em.opt 		mag

Uncertainty on intAverageG parameter
int_average_bp float stat.error
phot.mag 		mag

Intensity-averaged magnitude in the BP band
int_average_bp_error float stat.error
phot.mag 		mag

Uncertainty on intAverageBp parameter
int_average_rp float stat.error
phot.mag 		mag

Intensity-averaged magnitude in the RP band
int_average_rp_error float stat.error
phot.mag 		mag

Uncertainty on intAverageRp parameter
average_rv float spect.dopplerVeloc
stat.mean 		km.s**-1

Mean radial velocity
average_rv_error float stat.error
spect.dopplerVeloc
stat.mean 		km.s**-1

Uncertainty on averageRv parameter
peak_to_peak_g float src.var.amplitude
em.opt 		mag

Peak-to-peak amplitude of the G band light curve
peak_to_peak_g_error float stat.error
src.var.amplitude
em.opt 		mag

Uncertainty on the peakToPeakG parameter
peak_to_peak_bp float src.var.amplitude mag

Peak-to-peak amplitude of the BP band light curve
peak_to_peak_bp_error float stat.error
src.var.amplitude 		mag

Uncertainty on the peakToPeakBp parameter
peak_to_peak_rp float src.var.amplitude mag

Peak-to-peak amplitude of the RP band light curve
peak_to_peak_rp_error float stat.error
src.var.amplitude 		mag

Uncertainty on the peakToPeakRp parameter
peak_to_peak_rv double spect.dopplerVeloc
stat.param 		km.s**-1

Peak-to-peak amplitude of the radial velocity curve
peak_to_peak_rv_error double stat.error km.s**-1

Uncertainty on the peakToPeakRv parameter
metallicity float phys.abund.Z "dex"

Metallicity of the star from the Fourier parameters of the light curve
metallicity_error float stat.error
phys.abund.Z 		"dex"

Uncertainty of the metallicity parameter
r21_g float stat.Fourier

Fourier decomposition parameter r21G: A2/A1 (for G band)
r21_g_error float stat.error

Uncertainty on the r21G parameter: A2/A1 (for G band)
r31_g float stat.Fourier

Fourier decomposition parameter r31G: A3/A1 (for G band)
r31_g_error float stat.error

Uncertainty on the r31G parameter: A3/A1 (for G band)
phi21_g float stat.Fourier rad

Fourier decomposition parameter phi21G: phi2 - 2*phi1 (for G band)
phi21_g_error float stat.error rad

Uncertainty on the phi21G parameter: phi2 - 2*phi1 (for G band)
phi31_g float stat.Fourier rad

Fourier decomposition parameter phi31G: phi3 - 3*phi1 (for G band)
phi31_g_error float stat.error rad

Uncertainty on the phi31G parameter: phi3 - 3*phi1 (for G band)
num_clean_epochs_g short meta.number

Number of G FoV epochs used in the fitting algorithm
num_clean_epochs_bp short meta.number

Number of BP epochs used in the fitting algorithm
num_clean_epochs_rp short meta.number

Number of RP epochs used in the fitting algorithm
num_clean_epochs_rv short meta.number

Number of radial velocity epochs used in the fitting algorithm
zp_mag_g float phot.calib
em.opt 		mag

Zero point (mag) of the final model of the G band light curve
zp_mag_bp float phot.calib
em.opt.B 		mag

Zero point (mag) of the final model of the BP band light curve
zp_mag_rp float phot.calib
em.opt.R 		mag

Zero point (mag) of the final model of the RP band light curve
num_harmonics_for_p1_g short meta.number

Number of harmonics used to model the first periodicity of the G-band light curve
num_harmonics_for_p1_bp short meta.number

Number of harmonics used to model the first periodicity of the BP-band light curve
num_harmonics_for_p1_rp short meta.number

Number of harmonics used to model the first periodicity of the RP-band light curve
num_harmonics_for_p1_rv short meta.number

Number of harmonics used to model the first periodicity of the radial velocity curve
reference_time_g double time.epoch d

Reference time of the Fourier modelled G-band light curve
reference_time_bp double time.epoch d

Reference time of the Fourier modelled BP-band light curve
reference_time_rp double time.epoch d

Reference time of the Fourier modelled RP-band light curve
reference_time_rv double time.epoch d

Reference time of the Fourier modelled radial velocity curve
fund_freq1 double stat.Fourier d**-1

First frequency of the non-linear Fourier modelling
fund_freq1_error float stat.Fourier d**-1

Error of the first frequency of the non-linear Fourier modelling
fund_freq2 double stat.Fourier d**-1

Second frequency of the non-linear Fourier modelling in the G band
fund_freq2_error float stat.Fourier d**-1

Error of the second frequency of the non-linear Fourier modelling in the G band
fund_freq1_harmonic_ampl_g float[] src.var.amplitude mag

Amplitudes of the Fourier model for the first frequency in the G band
fund_freq1_harmonic_ampl_g_error float[] stat.error mag

Errors of the amplitudes of the Fourier model for the first frequency in the G band
fund_freq1_harmonic_phase_g float[] stat.Fourier rad

Phases of the Fourier model for the first frequency in the G band
fund_freq1_harmonic_phase_g_error float[] stat.error rad

Errors of the phases of the Fourier model for the first frequency in the G band
fund_freq1_harmonic_ampl_bp float[] src.var.amplitude mag

Amplitudes of the Fourier model for the first frequency in the BP band
fund_freq1_harmonic_ampl_bp_error float[] stat.error mag

Errors of the amplitudes of the Fourier model for the first frequency in the BP band
fund_freq1_harmonic_phase_bp float[] stat.Fourier rad

Phases of the Fourier model for the first frequency in the BP band
fund_freq1_harmonic_phase_bp_error float[] stat.error rad

Errors of the phases of the Fourier model for the first frequency in the BP band
fund_freq1_harmonic_ampl_rp float[] src.var.amplitude mag

Amplitudes of the Fourier model for the first frequency in the RP band
fund_freq1_harmonic_ampl_rp_error float[] stat.error mag

Errors of the amplitudes of the Fourier model for the first frequency in the RP band
fund_freq1_harmonic_phase_rp float[] stat.Fourier rad

Phases of the Fourier model for the first frequency in the RP band
fund_freq1_harmonic_phase_rp_error float[] stat.error rad

Errors of the phases of the Fourier model for the first frequency in the RP band
fund_freq1_harmonic_ampl_rv float[] src.var.amplitude km.s**-1

Amplitudes of the Fourier model for the first frequency of the radial velocity curve
fund_freq1_harmonic_ampl_rv_error float[] stat.error km.s**-1

Errors of the amplitudes of the Fourier model for the first frequency of the radial velocity curve
fund_freq1_harmonic_phase_rv float[] stat.Fourier rad

Phases of the Fourier model for the first frequency of the radial velocity curve
fund_freq1_harmonic_phase_rv_error float[] stat.error rad

Errors of the phases of the Fourier model for the first frequency of the radial velocity curve
p2_o double src.var
time.period 		d

Period corresponding to the second overtone pulsation mode (for multi mode pulsators) in the G band time series
p2_o_error float stat.error
time.period 		d

Uncertainty of the p2O period
type_best_classification char meta.code.class
src.class

Best type classification estimate out of: DCEP",T2CEP", `ACEP"
type2_best_sub_classification char meta.code.class
src.class

Best subclassification estimate for typeBestClassification=T2CEP" out of:BL_HER", W_VIR",RV_TAU"
mode_best_classification char meta.code.class
src.class

Best mode classification estimate out of: FUNDAMENTAL",FIRST_OVERTONE", SECOND_OVERTONE",MULTI",UNDEFINED",NOT_APPLICABLE"
multi_mode_best_classification char meta.code.class
src.class

Best multi mode DCEP classification out of: F/1O",F/2O", 1O/2O",1O/3O", 2O/3O",F/1O/2O", `1O/2O/3O"