Bolometric luminosities and radii in solar units for a subset of ultracool dwarfs (gaiadr3.gold_sample_ucd)

The table has 21062 rows, 7 columns.


The table contains the bolometric luminosities and radii in solar units for a subset of ultracool dwarfs from the Gaia DR3 catalogue, as well as some intermediate quantities used in the selection of sources and in the derivation of the luminosities and radii. For more details please refer to DR3-DPACP-123.


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 (, processed by the Gaia Data Processing and Analysis Consortium (DPAC, Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

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Name Type UCD Unit Description
source_id long
Unique source identifier (unique within a particular Data Release)
ftot_fobs float arith.factor Correction factor applied to obtain the total SED flux
lum float phys.luminosity solLum Bolometric luminosity in solar units
lum_uncertainty float stat.error
solLum Uncertainty in bolometric luminosity
radius float phys.size.radius solRad Radius in solar unit
radius_uncertainty float stat.error
solRad Uncertainty in radius
reduced_chi2 float Reduced chi-square of the SED fit