Binary Masses (gaiadr3.binary_masses)

The table has 195315 rows, 13 columns.

Description

Masses derived from the non-single stars (NSS) solutions with orbital parameters in table gaiadr3.nss_two_body_orbit. The table below is described in detail in DR3-DPACP-100. The table presents the different types of NSS orbital solutions combined and which parameters each combination allows to constrain:

combinationMethod m1 m2 fluxratio
Orbital+SB2
EclipsingSpectro(SB2)
Eclipsing+SB2
AstroSpectroSB1+M1
Orbital+SB1+M1
EclipsingSpectro+M1
Eclipsing+SB1+M1
SB2+M1
Orbital+M1 lower/upper
SB1+M1 lower

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
source_id long meta.id
meta.main
meta.ref
Source Identifier
m1 float phys.mass solMass Primary mass
m1_lower float phys.mass
stat.value
solMass Lower confidence level (16%) of the primary mass
m1_upper float phys.mass
stat.value
solMass Upper confidence level (84%) of the primary mass
m2 float phys.mass solMass Secondary mass
m2_lower float phys.mass
stat.value
solMass Lower confidence level (16%) of the secondary mass
m2_upper float phys.mass
stat.value
solMass Upper confidence level (84%) of the secondary mass
fluxratio float phys.luminosity
arith.ratio
Flux ratio of the secondary to the primary in the G-band
fluxratio_lower float stat.value
phys.luminosity
arith.ratio
Lower value of the flux ratio
fluxratio_upper float stat.value
phys.luminosity
arith.ratio
Upper value of the flux ratio
combination_method char meta.record Combination of NSS solutions used
m1_ref char meta.record Reference for the primary mass
flag char meta.record Flag