Variability short timescale (gaiadr2.vari_short_timescale)
The table has 3018 rows, 9 columns.
Description
This table describes the short-timescale sources. For DR2, all sources in this table were selected according to their variogram 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 (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://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.
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Columns
| Name | Type | UCD | Unit | Description |
|---|---|---|---|---|
| solution_id | long | meta.version |
Solution Identifier |
|
| source_id | long |
meta.id meta.main meta.ref |
Unique source identifier |
|
| amplitude_estimate | double |
src.var.amplitude phot.mag em.opt |
Magnitude[mag] |
Amplitude estimate of all per CCD G-band photometry (quantile(95%)-quantile(5%)) |
| number_of_fov_transits | int | meta.number |
Number of FoV transits with more than 7 CCD measurements after time series cleaning |
|
| mean_of_fov_abbe_values | double | stat.value |
Mean of per-FOV Abbe values derived from CCD G-band photometry |
|
| variogram_num_points | int | meta.number |
Number of points in the variogram |
|
| variogram_char_timescales | char | time | Time[day] |
Characteristic time scales of variability |
| variogram_values | char | stat.value | Misc[mag**2] |
Variogram values associated with the variogramCharTimescales |
| frequency | double |
src.var time.period |
Frequency[day^-1] |
Frequency search result for either G CCD, G FoV, BP or RP photometry (Null if no periodicity detected) |