Gravitational Lensing candidates (gaiafpr.lens_candidates)

The table has 4796531 rows, 17 columns.

Description

This table contains the sources identified as possible gravitational lens candidates based on an analysis of the observations in the neighbourhoud of a list of sources selected from a compilation of quasar candidates. Information about the catalogues from which these quasars proceed is given in the table of lens catalogue names.For each {\tt sourceId}, a list of components found around that source is tabulated, together with some information about their position and flux as derived from the cluster of observations associated with each of them. These individual observations are provided in \texttt{LensObservations}.A separate table \texttt{LensOutliers} compiles all those observations that could not be associated to a component around a given sourceId, and that have therefore been discarded from the analysis.

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

Unique source identifier
name char meta.id

The name of the gravitational lens candidate
flag short meta.code.status

GravLens flag
n_components int meta.number

Number of components
component_id int meta.id.assoc

Index of the component for this sourceId
n_obs_component short meta.number

Number of valid observations used for this component
component_flag short meta.code.status

Component object flag
ra_component double pos.eq.ra deg

Mean right ascension of the component
ra_std_component float stat.error
pos.eq.ra 		mas

Standard deviation of the right ascension of the component
dec_component double pos.eq.dec deg

Mean declination of the clusters of measurements
dec_std_component float stat.error
pos.eq.dec 		mas

Standard deviation of the declination measurements
g_flux_component double phot.flux
em.opt 		"electron".s**-1

Mean G flux of the component
g_flux_component_error float stat.error
phot.flux 		"electron".s**-1

Uncertainty of the mean flux value for this component
g_mag_component float phot.mag
em.opt 		mag

Mean onboard G magnitude of the component
g_mag_std_component float stat.error
em.opt 		mag

Standard deviation of the onboard G magnitude of the component
pos char