2.1.3 interstellar_medium_spectra

Table of the stacked Interstellar Medium Spectra

Columns description:

solution_id : Solution Identifier (long)

All Gaia data processed by the Data Processing and Analysis Consortium comes tagged with a solution identifier. This is a numeric field attached to each table row that can be used to unequivocally identify the version of all the subsystems that were used in the generation of the data as well as the input data used. It is mainly for internal DPAC use but is included in the published data releases to enable end users to examine the provenance of processed data products. To decode a given solution ID visit https://gaia.esac.esa.int/decoder/solnDecoder.jsp

healpix : The HEALPix Identification (int)

The pixel number determined by a level 5 HEALPix scheme, which is one of the two identifiers of the DIB-Spec bin voxel. Each voxel is defined by a HEALPix number (level 5) made in the equatorial system and the central heliocentric distance (dc).

lc : Central galactic longitude of voxel (float, Angle[deg])

Galactic longitude of the centre of the DIB-Spec voxel.

bc : Central galactic latitude of voxel (float, Angle[deg])

Galactic latitude of the centre of the DIB-Spec voxel.

dc : Central heliocentric distance of voxel (float, Length & Distance[kpc])

Heliocentric distance of the centre of the DIB-Spec voxel. The distance is defined as the inverse of parallax.

lambda : Wavelength (float, Length & Distance[Å])

Wavelength of the interstellar medium stacked spectrum.

flux : Normalised flux (float)

Median value of the normalised flux of the interstellar medium stacked spectrum corresponding to wavelength lambda.

flux_uncertainty : Uncertainty in the flux parameter (float)

Uncertainty value of the parameter flux. It is defined as the mean value of the flux errors on the individual spectra used to construct the stacked spectrum, divided by the square root of the number of spectra.