non-single-star (NSS) orbital models compatible with two-body solution (gaiadr3.nss_two_body_orbit)

The table has 443205 rows, 77 columns.

Description

This table contains non-single-star orbital models for sources compatible with an orbital two-body solution. This covers astrometric binaries, spectroscopic binaries, eclipsing binaries and certain combinations thereof. Several possible models are hosted within the same table and they are indicated by the field nss_solution_type. The description of this latter lists all possible solution types considered for this release. Only a selection of parameters hosted in this table are provided here, depending on the solution. The details of those is given in the description of field bit_index, which can also be used to extract the relevant elements of the correlation vector corr_vec.Details about the formalism used to derive the parameters in this table are given in the on-line documentation, see Chapter cu4nss. Warning: as a source may receive independent astrometric, spectroscopic or photometric orbits, a query using a given source_id may return several solutions. This has to be accounted for when doing a crossmatch by source_id.

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

Source Identifier

nss_solution_type char meta.record

NSS model adopted

ra double pos.eq.ra
meta.main
deg

Right ascension

ra_error float stat.error
pos.eq.ra
mas

Standard error of right ascension

dec double pos.eq.dec
meta.main
deg

Declination

dec_error float stat.error
pos.eq.dec
mas

Standard error of declination

parallax double pos.parallax mas

Parallax

parallax_error float stat.error
pos.parallax
mas

Standard error of parallax

pmra double pos.pm
pos.eq.ra
mas.yr**-1

Proper motion in right ascension direction

pmra_error float stat.error
pos.pm
pos.eq.ra
mas.yr**-1

Standard error of proper motion in right ascension direction

pmdec double pos.pm
pos.eq.dec
mas.yr**-1

Proper motion in declination direction

pmdec_error float stat.error
pos.pm
pos.eq.dec
mas.yr**-1

Standard error of proper motion in declination direction

a_thiele_innes double phys.angSize mas

Thiele-Innes element A

a_thiele_innes_error float stat.error
phys.angSize
mas

Standard error of Thiele-Innes element A

b_thiele_innes double phys.angSize mas

Thiele-Innes element B

b_thiele_innes_error float stat.error
phys.angSize
mas

Standard error of Thiele-Innes element B

f_thiele_innes double phys.angSize mas

Thiele-Innes element F

f_thiele_innes_error float stat.error
phys.angSize
mas

Standard error of Thiele-Innes element F

g_thiele_innes double phys.angSize mas

Thiele-Innes element G

g_thiele_innes_error float stat.error
phys.angSize
mas

Standard error of Thiele-Innes element G

c_thiele_innes double phys.angSize
phys.angSize.smajAxis
AU

C element of Thiele-Innes

c_thiele_innes_error float stat.error
phys.angSize
phys.angSize.smajAxis
AU

Standard error of C element of Thiele-Innes

h_thiele_innes double phys.angSize
phys.angSize.smajAxis
AU

H element of Thiele-Innes

h_thiele_innes_error float stat.error
phys.angSize
phys.angSize.smajAxis
AU

Standard error of H element of Thiele-Innes

period double time.period d

Orbital Period

period_error float stat.error
time.period
d

Standard error of Orbital Period

t_periastron double time.epoch d

Periastron epoch

t_periastron_error float stat.error
time.epoch
d

Standard error of Periastron epoch

eccentricity double src.orbital.eccentricity

eccentricity

eccentricity_error float stat.error
src.orbital.eccentricity

Standard error of eccentricity

center_of_mass_velocity double phys.veloc km.s**-1

The velocity of the center of mass

center_of_mass_velocity_error float stat.error
phys.veloc
km.s**-1

Standard error of The velocity of the center of mass

semi_amplitude_primary double phys.veloc km.s**-1

Semi-amplitude of the center of mass

semi_amplitude_primary_error float stat.error
phys.veloc
km.s**-1

Standard error of Semi-amplitude of the center of mass

semi_amplitude_secondary double phys.veloc km.s**-1

The semiamplitude of the radial velocity curve for second component

semi_amplitude_secondary_error float stat.error
phys.veloc
km.s**-1

Standard error of The semiamplitude of the radial velocity curve for second component

mass_ratio double phys.mass
arith.ratio

Mass ratio

mass_ratio_error float stat.error

Standard error of Mass ratio

fill_factor_primary double src.morph.param

Fill factor of primary

fill_factor_primary_error float stat.error

Standard error of Fill factor of primary

fill_factor_secondary double src.morph.param

Fill factor of secondary

fill_factor_secondary_error float stat.error

Standard error of Fill factor of secondary

inclination double src.orbital.inclination deg

Orbital inclination

inclination_error float stat.error
src.orbital.inclination
deg

Standard error of Orbital inclination

arg_periastron double src.orbital.periastron deg

Argument of periastron

arg_periastron_error float stat.error
src.orbital.periastron
deg

Standard error of Argument of periastron

temperature_ratio double phys.temperature
arith.ratio

Ratio of the effective temperatures

temperature_ratio_error double stat.error
phys.temperature

Standard error of the ratio of the effective temperatures

temperature_ratio_definition short meta.number

Code defining which fitting scenario did apply to the effective temperature

astrometric_n_obs_al integer meta.number

Total astrometric CCD observations in AL considered

astrometric_n_good_obs_al integer meta.number

Total astrometric CCD observations in AL actually used

rv_n_obs_primary integer meta.number

Total number of radial velocities considered for the primary

rv_n_good_obs_primary integer meta.number

Total number of radial velocities actually used for the primary

rv_n_obs_secondary integer meta.number

Total number of radial velocities considered for the secondary in the case of SB2

rv_n_good_obs_secondary integer meta.number

Total number of radial velocities actually used for the secondary in the case of SB2

phot_g_n_obs integer meta.number

Total number of G photometry measurements considered

phot_g_n_good_obs integer meta.number

Total number of G photometry measurements actually used

bit_index long meta.code.status

boolean mask for the fields above in the corrVec matrix

corr_vec float[] stat.correlation

Vector form of the upper triangle of the correlation matrix (column-major ordered)

obj_func float stat.fit.param

value of the objective function at the solution

goodness_of_fit float stat.fit.goodness

goodness of fit in the Hipparcos sense

efficiency float stat.fit.param

Efficiency of the solution

significance float stat.fit.param

The significance of the solution (i.e. how worth keeping a model is)

flags long meta.code.qual

Quality flag for the achieved NSS solution

conf_spectro_period float stat.probability

The probability of the period for not being due to (gaussian white) noise. Relevant for SB1, SB1C, SB2 and SB2C models. To be ignored otherwise.

r_pole_sum double phys.size.radius

Sum of the polar radii of primary and secondary (in units of the semi-major axis)

r_l1_point_sum double phys.size.radius

L1-pointing radii of primary and secondary (in units of the semi-major axis)

r_spher_sum double phys.size.radius

Sum of the radii of sphere having the same volume as the primary and secondary (in units of the semi-major axis

ecl_time_primary double time.crossing d

Time of mid-eclipse of the primary by the secondary

ecl_time_secondary double time.crossing d

Time of mid-eclipse of the secondary by the primary

ecl_dur_primary double time.duration d

Duration of primary eclipse assuming spherical components

ecl_dur_secondary double time.duration d

Duration of secondary eclipse assuming spherical components

g_luminosity_ratio double phys.luminosity
arith.ratio

Ratio of the G-band luminosity of the secondary over the primary

input_period_error float stat.error
time.period
d

Standard error of the period taken from VariEclipsingBinary.frequencyError

g_rank double stat.fit.param

Rank of the G-band solution

astrometric_jitter double stat.value mas

Uncorrelated astrometric jitter term